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Type.GetTypeFromCLSID Methode

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Definition

Namespace:
System
Assembly:
System.Runtime.dll
Assembly:
mscorlib.dll
Assembly:
netstandard.dll

Ruft den Typ ab, dem die angegebene Klassen-ID (CLSID) zugeordnet ist.

Überlädt

GetTypeFromCLSID(Guid)

Ruft den Typ ab, dem die angegebene Klassen-ID (CLSID) zugeordnet ist.
GetTypeFromCLSID(Guid, Boolean)

Ruft den Typ ab, dem die angegebene Klassen-ID (CLSID) zugeordnet ist. Dabei wird angegeben, ob bei Auftreten eines Fehlers beim Laden des Typs eine Ausnahme ausgelöst werden soll.
GetTypeFromCLSID(Guid, String)

Ruft den Typ, dem die angegebene Klassen-ID (CLSID) zugeordnet ist, vom angegebenen Server ab.
GetTypeFromCLSID(Guid, String, Boolean)

Ruft den Typ, dem die angegebene Klassen-ID (CLSID) zugeordnet ist, vom angegebenen Server ab. Dabei wird angegeben, ob bei Auftreten eines Fehlers beim Laden des Typs eine Ausnahme ausgelöst werden soll.

GetTypeFromCLSID(Guid)

Quelle:
Type.cs
Quelle:
Type.cs
Quelle:
Type.cs

Ruft den Typ ab, dem die angegebene Klassen-ID (CLSID) zugeordnet ist.

public:
 static Type ^ GetTypeFromCLSID(Guid clsid);
public static Type? GetTypeFromCLSID (Guid clsid);
[System.Runtime.Versioning.SupportedOSPlatform("windows")]
public static Type? GetTypeFromCLSID (Guid clsid);
public static Type GetTypeFromCLSID (Guid clsid);
static member GetTypeFromCLSID : Guid -> Type
[<System.Runtime.Versioning.SupportedOSPlatform("windows")>]
static member GetTypeFromCLSID : Guid -> Type
Public Shared Function GetTypeFromCLSID (clsid As Guid) As Type

Parameter

clsid
Guid

Die CLSID des abzurufenden Typs.

Gibt zurück

Type

System.__ComObject unabhängig von der Gültigkeit der CLSID.

Attribute
SupportedOSPlatformAttribute

Beispiele

Im folgenden Beispiel wird die CLSID des Microsoft Word Application-Objekts verwendet, um einen COM-Typ abzurufen, der die Microsoft Word-Anwendung darstellt. Anschließend instanziiert er den Typ durch Aufrufen der Activator.CreateInstance -Methode und schließt ihn durch Aufrufen der Application.Quit-Methode .

using System;
using System.Reflection;
using System.Runtime.InteropServices;

public class Example
{
   private const string WORD_CLSID = "{000209FF-0000-0000-C000-000000000046}";
   
   public static void Main()
   {
      // Start an instance of the Word application.
      var word = Type.GetTypeFromCLSID(Guid.Parse(WORD_CLSID));
      Console.WriteLine("Instantiated Type object from CLSID {0}",
                        WORD_CLSID);
      Object wordObj = Activator.CreateInstance(word);
      Console.WriteLine("Instantiated {0}", 
                        wordObj.GetType().FullName);
      
      // Close Word.
      word.InvokeMember("Quit", BindingFlags.InvokeMethod, null, 
                        wordObj, new object[] { 0, 0, false } );
   }
}
// The example displays the following output:
//    Instantiated Type object from CLSID {000209FF-0000-0000-C000-000000000046}
//    Instantiated Microsoft.Office.Interop.Word.ApplicationClass

open System
open System.Reflection

let [<Literal>] WORD_CLSID = "{000209FF-0000-0000-C000-000000000046}"
   
// Start an instance of the Word application.
let word = Type.GetTypeFromCLSID(Guid.Parse WORD_CLSID)
printfn $"Instantiated Type object from CLSID {WORD_CLSID}"
let wordObj = Activator.CreateInstance word
printfn $"Instantiated {wordObj.GetType().FullName}"

// Close Word.
word.InvokeMember("Quit", BindingFlags.InvokeMethod, null, wordObj, [| box 0; 0; false |]) |> ignore
// The example displays the following output:
//    Instantiated Type object from CLSID {000209FF-0000-0000-C000-000000000046}
//    Instantiated Microsoft.Office.Interop.Word.ApplicationClass

Imports System.Reflection
Imports System.Runtime.InteropServices

Module Example
   Private Const WORD_CLSID As String = "{000209FF-0000-0000-C000-000000000046}"
   
   Public Sub Main()
      ' Start an instance of the Word application.
      Dim word As Type = Type.GetTypeFromCLSID(Guid.Parse(WORD_CLSID))
      Console.WriteLine("Instantiated Type object from CLSID {0}",
                        WORD_CLSID)
      Dim wordObj As Object = Activator.CreateInstance(word)
      Console.WriteLine("Instantiated {0}", 
                        wordObj.GetType().FullName)
      
      ' Close Word.
      word.InvokeMember("Quit", BindingFlags.InvokeMethod, Nothing, 
                        wordObj, New Object() { 0, 0, False } )
   End Sub
End Module
' The example displays the following output:
'    Instantiated Type object from CLSID {000209FF-0000-0000-C000-000000000046}
'    Instantiated Microsoft.Office.Interop.Word.ApplicationClass

Hinweise

Die GetTypeFromCLSID -Methode unterstützt den spät gebundenen Zugriff auf nicht verwaltete COM-Objekte aus .NET Framework-Apps, wenn Sie den Klassenbezeichner (CLSID) des COM-Objekts kennen. Der Klassenbezeichner für COM-Klassen ist im HKEY_CLASSES_ROOT\CLSID Schlüssel der Registrierung definiert. Sie können den Wert der IsCOMObject -Eigenschaft abrufen, um zu bestimmen, ob der von dieser Methode zurückgegebene Typ ein COM-Objekt ist.

Tipp

Sie können die -Methode für den GetTypeFromProgID spät gebundenen Zugriff auf COM-Objekte aufrufen, deren programmgesteuerter Bezeichner (ProgID) Sie kennen.

Das Instanziieren eines nicht verwalteten COM-Objekts aus seiner CLSID ist ein zweistufiger Prozess:

  1. Rufen Sie durch Aufrufen der__ComObject -Methode ein Type -Objekt ab, das der GetTypeFromCLSID CLSID entspricht.

  2. Rufen Sie die Activator.CreateInstance(Type) -Methode auf, um das COM-Objekt zu instanziieren.

Eine Abbildung finden Sie im Beispiel.

Die GetTypeFromCLSID(Guid) Überladung ignoriert alle Ausnahmen, die auftreten können, wenn ein Type Objekt basierend auf dem clsid Argument instanziiert wird. Beachten Sie, dass keine Ausnahme ausgelöst wird, wenn clsid in der Registrierung nicht gefunden wird.

Hinweise für Aufrufer

Diese Methode ist für die Verwendung mit COM-Objekten vorgesehen, nicht mit .NET Framework-Objekten. Alle verwalteten Objekte, einschließlich der für COM sichtbaren Objekte (d. h. ihr ComVisibleAttribute Attribut ist true) verfügen über eine GUID, die von der GUID -Eigenschaft zurückgegeben wird. Obwohl die -Methode ein Type Objekt zurückgibt, das der GUID für .NET Framework -Objekte entspricht, können Sie dieses Type Objekt nicht verwenden, um eine Typinstanz durch Aufrufen der CreateInstance(Type) -Methode zu erstellen, wie im folgenden Beispiel gezeigt.

using System;
using System.Runtime.InteropServices;

[assembly:ComVisible(true)]

// Define two classes, and assign one an explicit GUID.
[GuidAttribute("d055cba3-1f83-4bd7-ba19-e22b1b8ec3c4")]
public class ExplicitGuid
{ }

public class NoExplicitGuid
{ }

public class Example
{
   public static void Main()
   {
      Type explicitType = typeof(ExplicitGuid);
      Guid explicitGuid = explicitType.GUID;
      
      // Get type of ExplicitGuid from its GUID.
      Type explicitCOM = Type.GetTypeFromCLSID(explicitGuid);
      Console.WriteLine("Created {0} type from CLSID {1}",
                        explicitCOM.Name, explicitGuid);
                        
      // Compare the two type objects.
      Console.WriteLine("{0} and {1} equal: {2}",
                        explicitType.Name, explicitCOM.Name,
                        explicitType.Equals(explicitCOM));                  
      
      // Instantiate an ExplicitGuid object.
      try {
         Object obj = Activator.CreateInstance(explicitCOM);
         Console.WriteLine("Instantiated a {0} object", obj.GetType().Name);
      } 
      catch (COMException e) {
         Console.WriteLine("COM Exception:\n{0}\n", e.Message);   
      } 
        
      Type notExplicit = typeof(NoExplicitGuid);
      Guid notExplicitGuid = notExplicit.GUID;
      
      // Get type of ExplicitGuid from its GUID.
      Type notExplicitCOM = Type.GetTypeFromCLSID(notExplicitGuid);
      Console.WriteLine("Created {0} type from CLSID {1}",
                        notExplicitCOM.Name, notExplicitGuid);
                        
      // Compare the two type objects.
      Console.WriteLine("{0} and {1} equal: {2}",
                        notExplicit.Name, notExplicitCOM.Name,
                        notExplicit.Equals(notExplicitCOM));                  
      
      // Instantiate an ExplicitGuid object.
      try {
         Object obj = Activator.CreateInstance(notExplicitCOM);
         Console.WriteLine("Instantiated a {0} object", obj.GetType().Name);
      } 
      catch (COMException e) {
         Console.WriteLine("COM Exception:\n{0}\n", e.Message);   
      }   
   }
}
// The example displays the following output:
//       Created __ComObject type from CLSID d055cba3-1f83-4bd7-ba19-e22b1b8ec3c4
//       ExplicitGuid and __ComObject equal: False
//       COM Exception:
//       Retrieving the COM class factory for component with CLSID 
//       {D055CBA3-1F83-4BD7-BA19-E22B1B8EC3C4} failed due to the following error: 
//       80040154 Class not registered 
//       (Exception from HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG)).
//       
//       Created __ComObject type from CLSID 74f03346-a718-3516-ac78-f351c7459ffb
//       NoExplicitGuid and __ComObject equal: False
//       COM Exception:
//       Retrieving the COM class factory for component with CLSID 
//       {74F03346-A718-3516-AC78-F351C7459FFB} failed due to the following error: 
//       80040154 Class not registered 
//       (Exception from HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG)).

open System
open System.Runtime.InteropServices

[<assembly: ComVisible true>]
do ()

// Define two classes, and assign one an explicit GUID.
[<Guid "d055cba3-1f83-4bd7-ba19-e22b1b8ec3c4">]
type ExplicitGuid() = class end

type NoExplicitGuid() = class end

let explicitType = typeof<ExplicitGuid>
let explicitGuid = explicitType.GUID

// Get type of ExplicitGuid from its GUID.
let explicitCOM = Type.GetTypeFromCLSID explicitGuid
printfn $"Created {explicitCOM.Name} type from CLSID {explicitGuid}"
                
// Compare the two type objects.
printfn $"{explicitType.Name} and {explicitCOM.Name} equal: {explicitType.Equals explicitCOM}"       

// Instantiate an ExplicitGuid object.
try
    let obj = Activator.CreateInstance explicitCOM
    printfn $"Instantiated a {obj.GetType().Name} object"
with :? COMException as e ->
    printfn $"COM Exception:\n{e.Message}\n"

let notExplicit = typeof<NoExplicitGuid>
let notExplicitGuid = notExplicit.GUID

// Get type of ExplicitGuid from its GUID.
let notExplicitCOM = Type.GetTypeFromCLSID(notExplicitGuid)
printfn $"Created {notExplicitCOM.Name} type from CLSID {notExplicitGuid}"
                
// Compare the two type objects.
printfn $"{notExplicit.Name} and {notExplicitCOM.Name} equal: {notExplicit.Equals notExplicitCOM}"       

// Instantiate an ExplicitGuid object.
try
    let obj = Activator.CreateInstance notExplicitCOM
    printfn $"Instantiated a {obj.GetType().Name} object"
with :? COMException as e ->
    printfn $"COM Exception:\n{e.Message}\n"   
// The example displays the following output:
//       Created __ComObject type from CLSID d055cba3-1f83-4bd7-ba19-e22b1b8ec3c4
//       ExplicitGuid and __ComObject equal: False
//       COM Exception:
//       Retrieving the COM class factory for component with CLSID 
//       {D055CBA3-1F83-4BD7-BA19-E22B1B8EC3C4} failed due to the following error: 
//       80040154 Class not registered 
//       (Exception from HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG)).
//       
//       Created __ComObject type from CLSID 74f03346-a718-3516-ac78-f351c7459ffb
//       NoExplicitGuid and __ComObject equal: False
//       COM Exception:
//       Retrieving the COM class factory for component with CLSID 
//       {74F03346-A718-3516-AC78-F351C7459FFB} failed due to the following error: 
//       80040154 Class not registered 
//       (Exception from HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG)).

Imports System.Runtime.InteropServices

<Assembly:ComVisible(True)>

' Define two classes, and assign one an explicit GUID.
<GuidAttribute("d055cba3-1f83-4bd7-ba19-e22b1b8ec3c4")>
Public Class ExplicitGuid
End Class

Public Class NoExplicitGuid
End Class

Module Example
   Public Sub Main()
      Dim explicitType As Type = GetType(ExplicitGuid)
      Dim explicitGuid As Guid = explicitType.GUID
      
      ' Get type of ExplicitGuid from its GUID.
      Dim explicitCOM As Type = Type.GetTypeFromCLSID(explicitGuid)
      Console.WriteLine("Created {0} type from CLSID {1}",
                        explicitCOM.Name, explicitGuid)
                        
      ' Compare the two type objects.
      Console.WriteLine("{0} and {1} equal: {2}",
                        explicitType.Name, explicitCOM.Name,
                        explicitType.Equals(explicitCOM))                  
      
      ' Instantiate an ExplicitGuid object.
      Try 
         Dim obj As Object = Activator.CreateInstance(explicitCOM)
         Console.WriteLine("Instantiated a {0} object", obj.GetType().Name)
      Catch e As COMException
         Console.WriteLine("COM Exception:{1}{0}{1}", e.Message, vbCrLf)   
      End Try 
        
      Dim notExplicit As Type = GetType(NoExplicitGuid)
      Dim notExplicitGuid As Guid = notExplicit.GUID
      
      ' Get type of ExplicitGuid from its GUID.
      Dim notExplicitCOM As Type = Type.GetTypeFromCLSID(notExplicitGuid)
      Console.WriteLine("Created {0} type from CLSID {1}",
                        notExplicitCOM.Name, notExplicitGuid)
                        
      ' Compare the two type objects.
      Console.WriteLine("{0} and {1} equal: {2}",
                        notExplicit.Name, notExplicitCOM.Name,
                        notExplicit.Equals(notExplicitCOM))                  
      
      ' Instantiate an ExplicitGuid object.
      Try 
         Dim obj As Object = Activator.CreateInstance(notExplicitCOM)
         Console.WriteLine("Instantiated a {0} object", obj.GetType().Name)
      Catch e As COMException
         Console.WriteLine("COM Exception:{1}{0}{1}", e.Message, vbCrLf)   
      End Try 
   End Sub
End Module
' The example displays the following output:
'       Created __ComObject type from CLSID d055cba3-1f83-4bd7-ba19-e22b1b8ec3c4
'       ExplicitGuid and __ComObject equal: False
'       COM Exception:
'       Retrieving the COM class factory for component with CLSID 
'       {D055CBA3-1F83-4BD7-BA19-E22B1B8EC3C4} failed due to the following error: 
'       80040154 Class not registered 
'       (Exception from HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG)).
'       
'       Created __ComObject type from CLSID 74f03346-a718-3516-ac78-f351c7459ffb
'       NoExplicitGuid and __ComObject equal: False
'       COM Exception:
'       Retrieving the COM class factory for component with CLSID 
'       {74F03346-A718-3516-AC78-F351C7459FFB} failed due to the following error: 
'       80040154 Class not registered 
'       (Exception from HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG)).

Stattdessen sollte nur zum GetTypeFromCLSID(Guid, String, Boolean) Abrufen der GUID eines nicht verwalteten COM-Objekts verwendet werden, und das resultierende Type Objekt, das an die CreateInstance(Type) -Methode übergeben wird, muss ein nicht verwaltetes COM-Objekt darstellen.

Gilt für:

GetTypeFromCLSID(Guid, Boolean)

Quelle:
Type.cs
Quelle:
Type.cs
Quelle:
Type.cs

Ruft den Typ ab, dem die angegebene Klassen-ID (CLSID) zugeordnet ist. Dabei wird angegeben, ob bei Auftreten eines Fehlers beim Laden des Typs eine Ausnahme ausgelöst werden soll.

public:
 static Type ^ GetTypeFromCLSID(Guid clsid, bool throwOnError);
public static Type? GetTypeFromCLSID (Guid clsid, bool throwOnError);
[System.Runtime.Versioning.SupportedOSPlatform("windows")]
public static Type? GetTypeFromCLSID (Guid clsid, bool throwOnError);
public static Type GetTypeFromCLSID (Guid clsid, bool throwOnError);
static member GetTypeFromCLSID : Guid * bool -> Type
[<System.Runtime.Versioning.SupportedOSPlatform("windows")>]
static member GetTypeFromCLSID : Guid * bool -> Type
Public Shared Function GetTypeFromCLSID (clsid As Guid, throwOnError As Boolean) As Type

Parameter

clsid
Guid

Die CLSID des abzurufenden Typs.

throwOnError
Boolean

true, um mögliche Ausnahmen auszulösen.

- oder -

false, um Ausnahmen zu ignorieren.

Gibt zurück

Type

System.__ComObject unabhängig von der Gültigkeit der CLSID.

Attribute
SupportedOSPlatformAttribute

Beispiele

Im folgenden Beispiel wird die CLSID des Microsoft Word Application-Objekts verwendet, um einen COM-Typ abzurufen, der die Microsoft Word-Anwendung darstellt. Anschließend instanziiert er den Typ durch Aufrufen der Activator.CreateInstance -Methode und schließt ihn durch Aufrufen der Application.Quit-Methode . Eine Ausnahme wird ausgelöst, wenn beim Laden des Typs ein Fehler auftritt.

using System;
using System.Reflection;
using System.Runtime.InteropServices;

public class Example
{
   private const string WORD_CLSID = "{000209FF-0000-0000-C000-000000000046}";
   
   public static void Main()
   {
      try {
         // Start an instance of the Word application.
         var word = Type.GetTypeFromCLSID(Guid.Parse(WORD_CLSID), true);
         Console.WriteLine("Instantiated Type object from CLSID {0}",
                           WORD_CLSID);
         Object wordObj = Activator.CreateInstance(word);
         Console.WriteLine("Instantiated {0}", 
                           wordObj.GetType().FullName, WORD_CLSID);
         
         // Close Word.
         word.InvokeMember("Quit", BindingFlags.InvokeMethod, null, 
                           wordObj, new object[] { 0, 0, false } );
      }
      catch (Exception) {
         Console.WriteLine("Unable to instantiate an object for {0}", WORD_CLSID);
      }
   }
}
// The example displays the following output:
//    Instantiated Type object from CLSID {000209FF-0000-0000-C000-000000000046}
//    Instantiated Microsoft.Office.Interop.Word.ApplicationClass

open System
open System.Reflection

let [<Literal>] WORD_CLSID = "{000209FF-0000-0000-C000-000000000046}"

try
    // Start an instance of the Word application.
    let word = Type.GetTypeFromCLSID(Guid.Parse WORD_CLSID, true)
    printfn $"Instantiated Type object from CLSID {WORD_CLSID}"
    let wordObj = Activator.CreateInstance word
    printfn $"Instantiated {wordObj.GetType().FullName} from CLSID {WORD_CLSID}" 
    
    // Close Word.
    word.InvokeMember("Quit", BindingFlags.InvokeMethod, null, wordObj, [| box 0; 0; false |] ) |> ignore
with _ ->
    printfn $"Unable to instantiate an object for {WORD_CLSID}"
// The example displays the following output:
//    Instantiated Type object from CLSID {000209FF-0000-0000-C000-000000000046}
//    Instantiated Microsoft.Office.Interop.Word.ApplicationClass

Imports System.Reflection
Imports System.Runtime.InteropServices

Module Example
   Private Const WORD_CLSID As String = "{000209FF-0000-0000-C000-000000000046}"
   
   Public Sub Main()
      ' Start an instance of the Word application.
      Try
         Dim word As Type = Type.GetTypeFromCLSID(Guid.Parse(WORD_CLSID), True)
         Console.WriteLine("Instantiated Type object from CLSID {0}",
                           WORD_CLSID)
         Dim wordObj As Object = Activator.CreateInstance(word)
         Console.WriteLine("Instantiated {0}", 
                           wordObj.GetType().FullName)
         
         ' Close Word.
         word.InvokeMember("Quit", BindingFlags.InvokeMethod, Nothing, 
                           wordObj, New Object() { 0, 0, False } )
      ' The method can throw any of a number of unexpected exceptions.
      Catch e As Exception
         Console.WriteLine("Unable to instantiate an object for {0}", WORD_CLSID)
      End Try
   End Sub
End Module
' The example displays the following output:
'    Instantiated Type object from CLSID {000209FF-0000-0000-C000-000000000046}
'    Instantiated Microsoft.Office.Interop.Word.ApplicationClass

Hinweise

Die GetTypeFromCLSID -Methode unterstützt den spät gebundenen Zugriff auf nicht verwaltete COM-Objekte aus .NET Framework-Apps, wenn Sie den Klassenbezeichner (CLSID) des COM-Objekts kennen. Der Klassenbezeichner für COM-Klassen ist im HKEY_CLASSES_ROOT\CLSID Schlüssel der Registrierung definiert. Sie können den Wert der IsCOMObject -Eigenschaft abrufen, um zu bestimmen, ob der von dieser Methode zurückgegebene Typ ein COM-Objekt ist.

Tipp

Sie können die -Methode für den GetTypeFromProgID spät gebundenen Zugriff auf COM-Objekte aufrufen, deren programmgesteuerter Bezeichner (ProgID) Sie kennen.

Das Instanziieren eines nicht verwalteten COM-Objekts aus seiner CLSID ist ein zweistufiger Prozess:

  1. Rufen Sie durch Aufrufen der __ComObject -Methode ein Type -Objekt ab, das der GetTypeFromCLSID CLSID entspricht.

  2. Rufen Sie die Activator.CreateInstance(Type) -Methode auf, um das COM-Objekt zu instanziieren.

Eine Abbildung finden Sie im Beispiel.

Ausnahmen wie OutOfMemoryException werden ausgelöst, wenn für throwOnErrorangegeben true wird, aber bei nicht registrierten CLSIDs tritt kein Fehler auf.

Hinweise für Aufrufer

Diese Methode ist für die Verwendung mit COM-Objekten vorgesehen, nicht mit .NET Framework-Objekten. Alle verwalteten Objekte, einschließlich der für COM sichtbaren Objekte (d. h. ihr ComVisibleAttribute Attribut ist true) verfügen über eine GUID, die von der GUID -Eigenschaft zurückgegeben wird. Obwohl die -Methode ein Type Objekt zurückgibt, das der GUID für .NET Framework -Objekte entspricht, können Sie dieses Type Objekt nicht verwenden, um eine Typinstanz durch Aufrufen der CreateInstance(Type) -Methode zu erstellen, wie im folgenden Beispiel gezeigt.

using System;
using System.Runtime.InteropServices;

[assembly:ComVisible(true)]

// Define two classes, and assign one an explicit GUID.
[GuidAttribute("d055cba3-1f83-4bd7-ba19-e22b1b8ec3c4")]
public class ExplicitGuid
{ }

public class NoExplicitGuid
{ }

public class Example
{
   public static void Main()
   {
      Type explicitType = typeof(ExplicitGuid);
      Guid explicitGuid = explicitType.GUID;
      
      // Get type of ExplicitGuid from its GUID.
      Type explicitCOM = Type.GetTypeFromCLSID(explicitGuid);
      Console.WriteLine("Created {0} type from CLSID {1}",
                        explicitCOM.Name, explicitGuid);
                        
      // Compare the two type objects.
      Console.WriteLine("{0} and {1} equal: {2}",
                        explicitType.Name, explicitCOM.Name,
                        explicitType.Equals(explicitCOM));                  
      
      // Instantiate an ExplicitGuid object.
      try {
         Object obj = Activator.CreateInstance(explicitCOM);
         Console.WriteLine("Instantiated a {0} object", obj.GetType().Name);
      } 
      catch (COMException e) {
         Console.WriteLine("COM Exception:\n{0}\n", e.Message);   
      } 
        
      Type notExplicit = typeof(NoExplicitGuid);
      Guid notExplicitGuid = notExplicit.GUID;
      
      // Get type of ExplicitGuid from its GUID.
      Type notExplicitCOM = Type.GetTypeFromCLSID(notExplicitGuid);
      Console.WriteLine("Created {0} type from CLSID {1}",
                        notExplicitCOM.Name, notExplicitGuid);
                        
      // Compare the two type objects.
      Console.WriteLine("{0} and {1} equal: {2}",
                        notExplicit.Name, notExplicitCOM.Name,
                        notExplicit.Equals(notExplicitCOM));                  
      
      // Instantiate an ExplicitGuid object.
      try {
         Object obj = Activator.CreateInstance(notExplicitCOM);
         Console.WriteLine("Instantiated a {0} object", obj.GetType().Name);
      } 
      catch (COMException e) {
         Console.WriteLine("COM Exception:\n{0}\n", e.Message);   
      }   
   }
}
// The example displays the following output:
//       Created __ComObject type from CLSID d055cba3-1f83-4bd7-ba19-e22b1b8ec3c4
//       ExplicitGuid and __ComObject equal: False
//       COM Exception:
//       Retrieving the COM class factory for component with CLSID 
//       {D055CBA3-1F83-4BD7-BA19-E22B1B8EC3C4} failed due to the following error: 
//       80040154 Class not registered 
//       (Exception from HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG)).
//       
//       Created __ComObject type from CLSID 74f03346-a718-3516-ac78-f351c7459ffb
//       NoExplicitGuid and __ComObject equal: False
//       COM Exception:
//       Retrieving the COM class factory for component with CLSID 
//       {74F03346-A718-3516-AC78-F351C7459FFB} failed due to the following error: 
//       80040154 Class not registered 
//       (Exception from HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG)).

open System
open System.Runtime.InteropServices

[<assembly: ComVisible true>]
do ()

// Define two classes, and assign one an explicit GUID.
[<Guid "d055cba3-1f83-4bd7-ba19-e22b1b8ec3c4">]
type ExplicitGuid() = class end

type NoExplicitGuid() = class end

let explicitType = typeof<ExplicitGuid>
let explicitGuid = explicitType.GUID

// Get type of ExplicitGuid from its GUID.
let explicitCOM = Type.GetTypeFromCLSID explicitGuid
printfn $"Created {explicitCOM.Name} type from CLSID {explicitGuid}"
                
// Compare the two type objects.
printfn $"{explicitType.Name} and {explicitCOM.Name} equal: {explicitType.Equals explicitCOM}"       

// Instantiate an ExplicitGuid object.
try
    let obj = Activator.CreateInstance explicitCOM
    printfn $"Instantiated a {obj.GetType().Name} object"
with :? COMException as e ->
    printfn $"COM Exception:\n{e.Message}\n"

let notExplicit = typeof<NoExplicitGuid>
let notExplicitGuid = notExplicit.GUID

// Get type of ExplicitGuid from its GUID.
let notExplicitCOM = Type.GetTypeFromCLSID(notExplicitGuid)
printfn $"Created {notExplicitCOM.Name} type from CLSID {notExplicitGuid}"
                
// Compare the two type objects.
printfn $"{notExplicit.Name} and {notExplicitCOM.Name} equal: {notExplicit.Equals notExplicitCOM}"       

// Instantiate an ExplicitGuid object.
try
    let obj = Activator.CreateInstance notExplicitCOM
    printfn $"Instantiated a {obj.GetType().Name} object"
with :? COMException as e ->
    printfn $"COM Exception:\n{e.Message}\n"   
// The example displays the following output:
//       Created __ComObject type from CLSID d055cba3-1f83-4bd7-ba19-e22b1b8ec3c4
//       ExplicitGuid and __ComObject equal: False
//       COM Exception:
//       Retrieving the COM class factory for component with CLSID 
//       {D055CBA3-1F83-4BD7-BA19-E22B1B8EC3C4} failed due to the following error: 
//       80040154 Class not registered 
//       (Exception from HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG)).
//       
//       Created __ComObject type from CLSID 74f03346-a718-3516-ac78-f351c7459ffb
//       NoExplicitGuid and __ComObject equal: False
//       COM Exception:
//       Retrieving the COM class factory for component with CLSID 
//       {74F03346-A718-3516-AC78-F351C7459FFB} failed due to the following error: 
//       80040154 Class not registered 
//       (Exception from HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG)).

Imports System.Runtime.InteropServices

<Assembly:ComVisible(True)>

' Define two classes, and assign one an explicit GUID.
<GuidAttribute("d055cba3-1f83-4bd7-ba19-e22b1b8ec3c4")>
Public Class ExplicitGuid
End Class

Public Class NoExplicitGuid
End Class

Module Example
   Public Sub Main()
      Dim explicitType As Type = GetType(ExplicitGuid)
      Dim explicitGuid As Guid = explicitType.GUID
      
      ' Get type of ExplicitGuid from its GUID.
      Dim explicitCOM As Type = Type.GetTypeFromCLSID(explicitGuid)
      Console.WriteLine("Created {0} type from CLSID {1}",
                        explicitCOM.Name, explicitGuid)
                        
      ' Compare the two type objects.
      Console.WriteLine("{0} and {1} equal: {2}",
                        explicitType.Name, explicitCOM.Name,
                        explicitType.Equals(explicitCOM))                  
      
      ' Instantiate an ExplicitGuid object.
      Try 
         Dim obj As Object = Activator.CreateInstance(explicitCOM)
         Console.WriteLine("Instantiated a {0} object", obj.GetType().Name)
      Catch e As COMException
         Console.WriteLine("COM Exception:{1}{0}{1}", e.Message, vbCrLf)   
      End Try 
        
      Dim notExplicit As Type = GetType(NoExplicitGuid)
      Dim notExplicitGuid As Guid = notExplicit.GUID
      
      ' Get type of ExplicitGuid from its GUID.
      Dim notExplicitCOM As Type = Type.GetTypeFromCLSID(notExplicitGuid)
      Console.WriteLine("Created {0} type from CLSID {1}",
                        notExplicitCOM.Name, notExplicitGuid)
                        
      ' Compare the two type objects.
      Console.WriteLine("{0} and {1} equal: {2}",
                        notExplicit.Name, notExplicitCOM.Name,
                        notExplicit.Equals(notExplicitCOM))                  
      
      ' Instantiate an ExplicitGuid object.
      Try 
         Dim obj As Object = Activator.CreateInstance(notExplicitCOM)
         Console.WriteLine("Instantiated a {0} object", obj.GetType().Name)
      Catch e As COMException
         Console.WriteLine("COM Exception:{1}{0}{1}", e.Message, vbCrLf)   
      End Try 
   End Sub
End Module
' The example displays the following output:
'       Created __ComObject type from CLSID d055cba3-1f83-4bd7-ba19-e22b1b8ec3c4
'       ExplicitGuid and __ComObject equal: False
'       COM Exception:
'       Retrieving the COM class factory for component with CLSID 
'       {D055CBA3-1F83-4BD7-BA19-E22B1B8EC3C4} failed due to the following error: 
'       80040154 Class not registered 
'       (Exception from HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG)).
'       
'       Created __ComObject type from CLSID 74f03346-a718-3516-ac78-f351c7459ffb
'       NoExplicitGuid and __ComObject equal: False
'       COM Exception:
'       Retrieving the COM class factory for component with CLSID 
'       {74F03346-A718-3516-AC78-F351C7459FFB} failed due to the following error: 
'       80040154 Class not registered 
'       (Exception from HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG)).

Stattdessen sollte nur zum GetTypeFromCLSID(Guid, String, Boolean) Abrufen der GUID eines nicht verwalteten COM-Objekts verwendet werden, und das resultierende Type Objekt, das an die CreateInstance(Type) -Methode übergeben wird, muss ein nicht verwaltetes COM-Objekt darstellen.

Gilt für:

GetTypeFromCLSID(Guid, String)

Quelle:
Type.cs
Quelle:
Type.cs
Quelle:
Type.cs

Ruft den Typ, dem die angegebene Klassen-ID (CLSID) zugeordnet ist, vom angegebenen Server ab.

public:
 static Type ^ GetTypeFromCLSID(Guid clsid, System::String ^ server);
public static Type? GetTypeFromCLSID (Guid clsid, string? server);
[System.Runtime.Versioning.SupportedOSPlatform("windows")]
public static Type? GetTypeFromCLSID (Guid clsid, string? server);
public static Type GetTypeFromCLSID (Guid clsid, string server);
static member GetTypeFromCLSID : Guid * string -> Type
[<System.Runtime.Versioning.SupportedOSPlatform("windows")>]
static member GetTypeFromCLSID : Guid * string -> Type
Public Shared Function GetTypeFromCLSID (clsid As Guid, server As String) As Type

Parameter

clsid
Guid

Die CLSID des abzurufenden Typs.

server
String

Der Server, von dem der Typ geladen werden soll. Wenn der Servername nullist, wird diese Methode automatisch auf den lokalen Computer zurückgesetzt.

Gibt zurück

Type

System.__ComObject unabhängig von der Gültigkeit der CLSID.

Attribute
SupportedOSPlatformAttribute

Beispiele

Im folgenden Beispiel wird die CLSID des Microsoft Word Application-Objekts verwendet, um einen COM-Typ abzurufen, der die Microsoft Word-Anwendung von einem Server namens computer17.central.contoso.com darstellt. Anschließend instanziiert er den Typ durch Aufrufen der Activator.CreateInstance -Methode und schließt ihn durch Aufrufen der Application.Quit-Methode .

using System;
using System.Reflection;
using System.Runtime.InteropServices;

public class Example
{
   private const string WORD_CLSID = "{000209FF-0000-0000-C000-000000000046}";
   
   public static void Main()
   {
      // Start an instance of the Word application.
      var word = Type.GetTypeFromCLSID(Guid.Parse(WORD_CLSID), "computer17.central.contoso.com");
      Console.WriteLine("Instantiated Type object from CLSID {0}",
                        WORD_CLSID);
      try {
         Object wordObj = Activator.CreateInstance(word);
         Console.WriteLine("Instantiated {0}", 
                           wordObj.GetType().FullName, WORD_CLSID);
            
         // Close Word.
         word.InvokeMember("Quit", BindingFlags.InvokeMethod, null, 
                           wordObj, new object[] { 0, 0, false } );
      }
      catch (COMException) {
         Console.WriteLine("Unable to instantiate object.");   
      }
   }
}
// The example displays the following output:
//    Instantiated Type object from CLSID {000209FF-0000-0000-C000-000000000046}
//    Instantiated Microsoft.Office.Interop.Word.ApplicationClass

open System
open System.Reflection
open System.Runtime.InteropServices

let [<Literal>] WORD_CLSID = "{000209FF-0000-0000-C000-000000000046}"

// Start an instance of the Word application.
let word = Type.GetTypeFromCLSID(Guid.Parse WORD_CLSID, "computer17.central.contoso.com")
printfn $"Instantiated Type object from CLSID {WORD_CLSID}"
try
    let wordObj = Activator.CreateInstance word
    printfn $"Instantiated {wordObj.GetType().FullName} from CLSID {WORD_CLSID}" 
    
    // Close Word.
    word.InvokeMember("Quit", BindingFlags.InvokeMethod, null, wordObj, [| box 0; 0; false |] ) |> ignore
with :? COMException ->
    printfn "Unable to instantiate object."   
// The example displays the following output:
//    Instantiated Type object from CLSID {000209FF-0000-0000-C000-000000000046}
//    Instantiated Microsoft.Office.Interop.Word.ApplicationClass

Imports System.Reflection
Imports System.Runtime.InteropServices

Module Example
   Private Const WORD_CLSID As String = "{000209FF-0000-0000-C000-000000000046}"
   
   Public Sub Main()
      ' Start an instance of the Word application.
      Dim word As Type = Type.GetTypeFromCLSID(Guid.Parse(WORD_CLSID), "computer17.central.contoso.com")
      Console.WriteLine("Instantiated Type object from CLSID {0}",
                        WORD_CLSID)
      Try
         Dim wordObj As Object = Activator.CreateInstance(word)
         Console.WriteLine("Instantiated {0}", 
                           wordObj.GetType().FullName)
         
         ' Close Word.
         word.InvokeMember("Quit", BindingFlags.InvokeMethod, Nothing, 
                           wordObj, New Object() { 0, 0, False } )
      Catch e As COMException
         Console.WriteLine("Unable to instantiate object.")
      End Try
   End Sub
End Module
' The example displays the following output:
'    Instantiated Type object from CLSID {000209FF-0000-0000-C000-000000000046}
'    Instantiated Microsoft.Office.Interop.Word.ApplicationClass

Hinweise

Die GetTypeFromCLSID -Methode unterstützt den spät gebundenen Zugriff auf nicht verwaltete COM-Objekte aus .NET Framework-Apps, wenn Sie den Klassenbezeichner (CLSID) des COM-Objekts kennen. Der Klassenbezeichner für COM-Klassen ist im HKEY_CLASSES_ROOT\CLSID Schlüssel der Registrierung definiert. Sie können den Wert der IsCOMObject -Eigenschaft abrufen, um zu bestimmen, ob der von dieser Methode zurückgegebene Typ ein COM-Objekt ist.

Tipp

Sie können die -Methode für den GetTypeFromProgID spät gebundenen Zugriff auf COM-Objekte aufrufen, deren programmgesteuerter Bezeichner (ProgID) Sie kennen.

Das Instanziieren eines nicht verwalteten COM-Objekts aus seiner CLSID ist ein zweistufiger Prozess:

  1. Rufen Sie durch Aufrufen der __ComObject -Methode ein Type -Objekt ab, das der GetTypeFromCLSID CLSID entspricht.

  2. Rufen Sie die Activator.CreateInstance(Type) -Methode auf, um das COM-Objekt zu instanziieren.

Hinweise für Aufrufer

Diese Methode ist für die Verwendung mit COM-Objekten vorgesehen, nicht mit .NET Framework-Objekten. Alle verwalteten Objekte, einschließlich der für COM sichtbaren Objekte (d. h. ihr ComVisibleAttribute Attribut ist true) verfügen über eine GUID, die von der GUID -Eigenschaft zurückgegeben wird. Obwohl die -Methode ein Type Objekt zurückgibt, das der GUID für .NET Framework -Objekte entspricht, können Sie dieses Type Objekt nicht verwenden, um eine Typinstanz durch Aufrufen der CreateInstance(Type) -Methode zu erstellen, wie im folgenden Beispiel gezeigt.

using System;
using System.Runtime.InteropServices;

[assembly:ComVisible(true)]

// Define two classes, and assign one an explicit GUID.
[GuidAttribute("d055cba3-1f83-4bd7-ba19-e22b1b8ec3c4")]
public class ExplicitGuid
{ }

public class NoExplicitGuid
{ }

public class Example
{
   public static void Main()
   {
      Type explicitType = typeof(ExplicitGuid);
      Guid explicitGuid = explicitType.GUID;
      
      // Get type of ExplicitGuid from its GUID.
      Type explicitCOM = Type.GetTypeFromCLSID(explicitGuid);
      Console.WriteLine("Created {0} type from CLSID {1}",
                        explicitCOM.Name, explicitGuid);
                        
      // Compare the two type objects.
      Console.WriteLine("{0} and {1} equal: {2}",
                        explicitType.Name, explicitCOM.Name,
                        explicitType.Equals(explicitCOM));                  
      
      // Instantiate an ExplicitGuid object.
      try {
         Object obj = Activator.CreateInstance(explicitCOM);
         Console.WriteLine("Instantiated a {0} object", obj.GetType().Name);
      } 
      catch (COMException e) {
         Console.WriteLine("COM Exception:\n{0}\n", e.Message);   
      } 
        
      Type notExplicit = typeof(NoExplicitGuid);
      Guid notExplicitGuid = notExplicit.GUID;
      
      // Get type of ExplicitGuid from its GUID.
      Type notExplicitCOM = Type.GetTypeFromCLSID(notExplicitGuid);
      Console.WriteLine("Created {0} type from CLSID {1}",
                        notExplicitCOM.Name, notExplicitGuid);
                        
      // Compare the two type objects.
      Console.WriteLine("{0} and {1} equal: {2}",
                        notExplicit.Name, notExplicitCOM.Name,
                        notExplicit.Equals(notExplicitCOM));                  
      
      // Instantiate an ExplicitGuid object.
      try {
         Object obj = Activator.CreateInstance(notExplicitCOM);
         Console.WriteLine("Instantiated a {0} object", obj.GetType().Name);
      } 
      catch (COMException e) {
         Console.WriteLine("COM Exception:\n{0}\n", e.Message);   
      }   
   }
}
// The example displays the following output:
//       Created __ComObject type from CLSID d055cba3-1f83-4bd7-ba19-e22b1b8ec3c4
//       ExplicitGuid and __ComObject equal: False
//       COM Exception:
//       Retrieving the COM class factory for component with CLSID 
//       {D055CBA3-1F83-4BD7-BA19-E22B1B8EC3C4} failed due to the following error: 
//       80040154 Class not registered 
//       (Exception from HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG)).
//       
//       Created __ComObject type from CLSID 74f03346-a718-3516-ac78-f351c7459ffb
//       NoExplicitGuid and __ComObject equal: False
//       COM Exception:
//       Retrieving the COM class factory for component with CLSID 
//       {74F03346-A718-3516-AC78-F351C7459FFB} failed due to the following error: 
//       80040154 Class not registered 
//       (Exception from HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG)).

open System
open System.Runtime.InteropServices

[<assembly: ComVisible true>]
do ()

// Define two classes, and assign one an explicit GUID.
[<Guid "d055cba3-1f83-4bd7-ba19-e22b1b8ec3c4">]
type ExplicitGuid() = class end

type NoExplicitGuid() = class end

let explicitType = typeof<ExplicitGuid>
let explicitGuid = explicitType.GUID

// Get type of ExplicitGuid from its GUID.
let explicitCOM = Type.GetTypeFromCLSID explicitGuid
printfn $"Created {explicitCOM.Name} type from CLSID {explicitGuid}"
                
// Compare the two type objects.
printfn $"{explicitType.Name} and {explicitCOM.Name} equal: {explicitType.Equals explicitCOM}"       

// Instantiate an ExplicitGuid object.
try
    let obj = Activator.CreateInstance explicitCOM
    printfn $"Instantiated a {obj.GetType().Name} object"
with :? COMException as e ->
    printfn $"COM Exception:\n{e.Message}\n"

let notExplicit = typeof<NoExplicitGuid>
let notExplicitGuid = notExplicit.GUID

// Get type of ExplicitGuid from its GUID.
let notExplicitCOM = Type.GetTypeFromCLSID(notExplicitGuid)
printfn $"Created {notExplicitCOM.Name} type from CLSID {notExplicitGuid}"
                
// Compare the two type objects.
printfn $"{notExplicit.Name} and {notExplicitCOM.Name} equal: {notExplicit.Equals notExplicitCOM}"       

// Instantiate an ExplicitGuid object.
try
    let obj = Activator.CreateInstance notExplicitCOM
    printfn $"Instantiated a {obj.GetType().Name} object"
with :? COMException as e ->
    printfn $"COM Exception:\n{e.Message}\n"   
// The example displays the following output:
//       Created __ComObject type from CLSID d055cba3-1f83-4bd7-ba19-e22b1b8ec3c4
//       ExplicitGuid and __ComObject equal: False
//       COM Exception:
//       Retrieving the COM class factory for component with CLSID 
//       {D055CBA3-1F83-4BD7-BA19-E22B1B8EC3C4} failed due to the following error: 
//       80040154 Class not registered 
//       (Exception from HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG)).
//       
//       Created __ComObject type from CLSID 74f03346-a718-3516-ac78-f351c7459ffb
//       NoExplicitGuid and __ComObject equal: False
//       COM Exception:
//       Retrieving the COM class factory for component with CLSID 
//       {74F03346-A718-3516-AC78-F351C7459FFB} failed due to the following error: 
//       80040154 Class not registered 
//       (Exception from HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG)).

Imports System.Runtime.InteropServices

<Assembly:ComVisible(True)>

' Define two classes, and assign one an explicit GUID.
<GuidAttribute("d055cba3-1f83-4bd7-ba19-e22b1b8ec3c4")>
Public Class ExplicitGuid
End Class

Public Class NoExplicitGuid
End Class

Module Example
   Public Sub Main()
      Dim explicitType As Type = GetType(ExplicitGuid)
      Dim explicitGuid As Guid = explicitType.GUID
      
      ' Get type of ExplicitGuid from its GUID.
      Dim explicitCOM As Type = Type.GetTypeFromCLSID(explicitGuid)
      Console.WriteLine("Created {0} type from CLSID {1}",
                        explicitCOM.Name, explicitGuid)
                        
      ' Compare the two type objects.
      Console.WriteLine("{0} and {1} equal: {2}",
                        explicitType.Name, explicitCOM.Name,
                        explicitType.Equals(explicitCOM))                  
      
      ' Instantiate an ExplicitGuid object.
      Try 
         Dim obj As Object = Activator.CreateInstance(explicitCOM)
         Console.WriteLine("Instantiated a {0} object", obj.GetType().Name)
      Catch e As COMException
         Console.WriteLine("COM Exception:{1}{0}{1}", e.Message, vbCrLf)   
      End Try 
        
      Dim notExplicit As Type = GetType(NoExplicitGuid)
      Dim notExplicitGuid As Guid = notExplicit.GUID
      
      ' Get type of ExplicitGuid from its GUID.
      Dim notExplicitCOM As Type = Type.GetTypeFromCLSID(notExplicitGuid)
      Console.WriteLine("Created {0} type from CLSID {1}",
                        notExplicitCOM.Name, notExplicitGuid)
                        
      ' Compare the two type objects.
      Console.WriteLine("{0} and {1} equal: {2}",
                        notExplicit.Name, notExplicitCOM.Name,
                        notExplicit.Equals(notExplicitCOM))                  
      
      ' Instantiate an ExplicitGuid object.
      Try 
         Dim obj As Object = Activator.CreateInstance(notExplicitCOM)
         Console.WriteLine("Instantiated a {0} object", obj.GetType().Name)
      Catch e As COMException
         Console.WriteLine("COM Exception:{1}{0}{1}", e.Message, vbCrLf)   
      End Try 
   End Sub
End Module
' The example displays the following output:
'       Created __ComObject type from CLSID d055cba3-1f83-4bd7-ba19-e22b1b8ec3c4
'       ExplicitGuid and __ComObject equal: False
'       COM Exception:
'       Retrieving the COM class factory for component with CLSID 
'       {D055CBA3-1F83-4BD7-BA19-E22B1B8EC3C4} failed due to the following error: 
'       80040154 Class not registered 
'       (Exception from HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG)).
'       
'       Created __ComObject type from CLSID 74f03346-a718-3516-ac78-f351c7459ffb
'       NoExplicitGuid and __ComObject equal: False
'       COM Exception:
'       Retrieving the COM class factory for component with CLSID 
'       {74F03346-A718-3516-AC78-F351C7459FFB} failed due to the following error: 
'       80040154 Class not registered 
'       (Exception from HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG)).

Stattdessen sollte nur zum GetTypeFromCLSID(Guid, String, Boolean) Abrufen der GUID eines nicht verwalteten COM-Objekts verwendet werden, und das resultierende Type Objekt, das an die CreateInstance(Type) -Methode übergeben wird, muss ein nicht verwaltetes COM-Objekt darstellen.

Gilt für:

GetTypeFromCLSID(Guid, String, Boolean)

Quelle:
Type.cs
Quelle:
Type.cs
Quelle:
Type.cs

Ruft den Typ, dem die angegebene Klassen-ID (CLSID) zugeordnet ist, vom angegebenen Server ab. Dabei wird angegeben, ob bei Auftreten eines Fehlers beim Laden des Typs eine Ausnahme ausgelöst werden soll.

public:
 static Type ^ GetTypeFromCLSID(Guid clsid, System::String ^ server, bool throwOnError);
public static Type? GetTypeFromCLSID (Guid clsid, string? server, bool throwOnError);
[System.Runtime.Versioning.SupportedOSPlatform("windows")]
public static Type? GetTypeFromCLSID (Guid clsid, string? server, bool throwOnError);
public static Type GetTypeFromCLSID (Guid clsid, string server, bool throwOnError);
static member GetTypeFromCLSID : Guid * string * bool -> Type
[<System.Runtime.Versioning.SupportedOSPlatform("windows")>]
static member GetTypeFromCLSID : Guid * string * bool -> Type
Public Shared Function GetTypeFromCLSID (clsid As Guid, server As String, throwOnError As Boolean) As Type

Parameter

clsid
Guid

Die CLSID des abzurufenden Typs.

server
String

Der Server, von dem der Typ geladen werden soll. Wenn der Servername nullist, wird diese Methode automatisch auf den lokalen Computer zurückgesetzt.

throwOnError
Boolean

true, um mögliche Ausnahmen auszulösen.

- oder -

false, um Ausnahmen zu ignorieren.

Gibt zurück

Type

System.__ComObject unabhängig von der Gültigkeit der CLSID.

Attribute
SupportedOSPlatformAttribute

Beispiele

Im folgenden Beispiel wird die CLSID des Microsoft Word Application-Objekts verwendet, um einen COM-Typ abzurufen, der die Microsoft Word-Anwendung von einem Server namens computer17.central.contoso.com darstellt. Anschließend instanziiert er den Typ durch Aufrufen der Activator.CreateInstance -Methode und schließt ihn durch Aufrufen der Application.Quit-Methode . Eine Ausnahme wird ausgelöst, wenn beim Laden des Typs ein Fehler auftritt.

using System;
using System.Reflection;
using System.Runtime.InteropServices;

public class Example
{
   private const string WORD_CLSID = "{000209FF-0000-0000-C000-000000000046}";
   
   public static void Main()
   {
      try {
         // Start an instance of the Word application.
         var word = Type.GetTypeFromCLSID(Guid.Parse(WORD_CLSID), 
                                          "computer17.central.contoso.com",
                                          true);
         Console.WriteLine("Instantiated Type object from CLSID {0}",
                           WORD_CLSID);
         Object wordObj = Activator.CreateInstance(word);
         Console.WriteLine("Instantiated {0}", 
                           wordObj.GetType().FullName, WORD_CLSID);
            
         // Close Word.
         word.InvokeMember("Quit", BindingFlags.InvokeMethod, null, 
                           wordObj, new object[] { 0, 0, false } );
      }
      // The method can throw any of a variety of exceptions.
      catch (Exception e) {
         Console.WriteLine("{0}: Unable to instantiate an object for {1}", 
                           e.GetType().Name, WORD_CLSID);
      }      
   }
}
// The example displays the following output:
//    Instantiated Type object from CLSID {000209FF-0000-0000-C000-000000000046}
//    Instantiated Microsoft.Office.Interop.Word.ApplicationClass

open System
open System.Reflection

let [<Literal>] WORD_CLSID = "{000209FF-0000-0000-C000-000000000046}"

try
    // Start an instance of the Word application.
    let word = Type.GetTypeFromCLSID(Guid.Parse WORD_CLSID, "computer17.central.contoso.com", true)
    printfn $"Instantiated Type object from CLSID {WORD_CLSID}"
    let wordObj = Activator.CreateInstance word
    printfn $"Instantiated {wordObj.GetType().FullName} from CLSID {WORD_CLSID}" 
    
    // Close Word.
    word.InvokeMember("Quit", BindingFlags.InvokeMethod, null, wordObj, [| box 0; 0; false |] ) |> ignore
// The method can throw any of a variety of exceptions.
with e ->
    printfn $"{e.GetType().Name}: Unable to instantiate an object for {WORD_CLSID}" 
// The example displays the following output:
//    Instantiated Type object from CLSID {000209FF-0000-0000-C000-000000000046}
//    Instantiated Microsoft.Office.Interop.Word.ApplicationClass

Imports System.Reflection
Imports System.Runtime.InteropServices

Module Example
   Private Const WORD_CLSID As String = "{000209FF-0000-0000-C000-000000000046}"
   
   Public Sub Main()
      Try
         ' Start an instance of the Word application.
         Dim word As Type = Type.GetTypeFromCLSID(Guid.Parse(WORD_CLSID), 
                                                  "computer17.central.contoso.com",
                                                  True)
         Console.WriteLine("Instantiated Type object from CLSID {0}",
                           WORD_CLSID)

         Dim wordObj As Object = Activator.CreateInstance(word)
         Console.WriteLine("Instantiated {0}", 
                           wordObj.GetType().FullName)
         
         ' Close Word.
         word.InvokeMember("Quit", BindingFlags.InvokeMethod, Nothing, 
                           wordObj, New Object() { 0, 0, False } )
      ' The method can throw any of a variety of exceptions.
      Catch e As Exception
         Console.WriteLine("{0}: Unable to instantiate an object for {1}", 
                           e.GetType().Name, WORD_CLSID)
      End Try
   End Sub
End Module
' The example displays the following output:
'    Instantiated Type object from CLSID {000209FF-0000-0000-C000-000000000046}
'    Instantiated Microsoft.Office.Interop.Word.ApplicationClass

Hinweise

Die GetTypeFromCLSID -Methode unterstützt den spät gebundenen Zugriff auf nicht verwaltete COM-Objekte aus .NET Framework-Apps, wenn Sie den Klassenbezeichner (CLSID) des COM-Objekts kennen. Der Klassenbezeichner für COM-Klassen ist im HKEY_CLASSES_ROOT\CLSID Schlüssel der Registrierung definiert. Sie können den Wert der IsCOMObject -Eigenschaft abrufen, um zu bestimmen, ob der von dieser Methode zurückgegebene Typ ein COM-Objekt ist.

Tipp

Sie können die -Methode für den GetTypeFromProgID spät gebundenen Zugriff auf COM-Objekte aufrufen, deren programmgesteuerter Bezeichner (ProgID) Sie kennen.

Das Instanziieren eines nicht verwalteten COM-Objekts aus seiner CLSID ist ein zweistufiger Prozess:

  1. Rufen Sie durch Aufrufen der __ComObject -Methode ein Type -Objekt ab, das der GetTypeFromCLSID CLSID entspricht.

  2. Rufen Sie die Activator.CreateInstance(Type) -Methode auf, um das COM-Objekt zu instanziieren.

Ausnahmen wie OutOfMemoryException werden ausgelöst, wenn für throwOnErrorangegeben true wird, aber bei nicht registrierten CLSIDs tritt kein Fehler auf.

Hinweise für Aufrufer

Diese Methode ist für die Verwendung mit COM-Objekten vorgesehen, nicht mit .NET Framework-Objekten. Alle verwalteten Objekte, einschließlich der für COM sichtbaren Objekte (d. h. ihr ComVisibleAttribute Attribut ist true) verfügen über eine GUID, die von der GUID -Eigenschaft zurückgegeben wird. Obwohl die GetTypeFromCLSID(Guid, String, Boolean) -Methode ein Type Objekt zurückgibt, das der GUID für ein bestimmtes verwaltetes Objekt entspricht, können Sie dieses Type Objekt nicht verwenden, um eine Typinstanz durch Aufrufen der CreateInstance(Type) -Methode zu erstellen, wie im folgenden Beispiel gezeigt.

using System;
using System.Runtime.InteropServices;

[assembly:ComVisible(true)]

// Define two classes, and assign one an explicit GUID.
[GuidAttribute("d055cba3-1f83-4bd7-ba19-e22b1b8ec3c4")]
public class ExplicitGuid
{ }

public class NoExplicitGuid
{ }

public class Example
{
   public static void Main()
   {
      Type explicitType = typeof(ExplicitGuid);
      Guid explicitGuid = explicitType.GUID;
      
      // Get type of ExplicitGuid from its GUID.
      Type explicitCOM = Type.GetTypeFromCLSID(explicitGuid);
      Console.WriteLine("Created {0} type from CLSID {1}",
                        explicitCOM.Name, explicitGuid);
                        
      // Compare the two type objects.
      Console.WriteLine("{0} and {1} equal: {2}",
                        explicitType.Name, explicitCOM.Name,
                        explicitType.Equals(explicitCOM));                  
      
      // Instantiate an ExplicitGuid object.
      try {
         Object obj = Activator.CreateInstance(explicitCOM);
         Console.WriteLine("Instantiated a {0} object", obj.GetType().Name);
      } 
      catch (COMException e) {
         Console.WriteLine("COM Exception:\n{0}\n", e.Message);   
      } 
        
      Type notExplicit = typeof(NoExplicitGuid);
      Guid notExplicitGuid = notExplicit.GUID;
      
      // Get type of ExplicitGuid from its GUID.
      Type notExplicitCOM = Type.GetTypeFromCLSID(notExplicitGuid);
      Console.WriteLine("Created {0} type from CLSID {1}",
                        notExplicitCOM.Name, notExplicitGuid);
                        
      // Compare the two type objects.
      Console.WriteLine("{0} and {1} equal: {2}",
                        notExplicit.Name, notExplicitCOM.Name,
                        notExplicit.Equals(notExplicitCOM));                  
      
      // Instantiate an ExplicitGuid object.
      try {
         Object obj = Activator.CreateInstance(notExplicitCOM);
         Console.WriteLine("Instantiated a {0} object", obj.GetType().Name);
      } 
      catch (COMException e) {
         Console.WriteLine("COM Exception:\n{0}\n", e.Message);   
      }   
   }
}
// The example displays the following output:
//       Created __ComObject type from CLSID d055cba3-1f83-4bd7-ba19-e22b1b8ec3c4
//       ExplicitGuid and __ComObject equal: False
//       COM Exception:
//       Retrieving the COM class factory for component with CLSID 
//       {D055CBA3-1F83-4BD7-BA19-E22B1B8EC3C4} failed due to the following error: 
//       80040154 Class not registered 
//       (Exception from HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG)).
//       
//       Created __ComObject type from CLSID 74f03346-a718-3516-ac78-f351c7459ffb
//       NoExplicitGuid and __ComObject equal: False
//       COM Exception:
//       Retrieving the COM class factory for component with CLSID 
//       {74F03346-A718-3516-AC78-F351C7459FFB} failed due to the following error: 
//       80040154 Class not registered 
//       (Exception from HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG)).

open System
open System.Runtime.InteropServices

[<assembly: ComVisible true>]
do ()

// Define two classes, and assign one an explicit GUID.
[<Guid "d055cba3-1f83-4bd7-ba19-e22b1b8ec3c4">]
type ExplicitGuid() = class end

type NoExplicitGuid() = class end

let explicitType = typeof<ExplicitGuid>
let explicitGuid = explicitType.GUID

// Get type of ExplicitGuid from its GUID.
let explicitCOM = Type.GetTypeFromCLSID explicitGuid
printfn $"Created {explicitCOM.Name} type from CLSID {explicitGuid}"
                
// Compare the two type objects.
printfn $"{explicitType.Name} and {explicitCOM.Name} equal: {explicitType.Equals explicitCOM}"       

// Instantiate an ExplicitGuid object.
try
    let obj = Activator.CreateInstance explicitCOM
    printfn $"Instantiated a {obj.GetType().Name} object"
with :? COMException as e ->
    printfn $"COM Exception:\n{e.Message}\n"

let notExplicit = typeof<NoExplicitGuid>
let notExplicitGuid = notExplicit.GUID

// Get type of ExplicitGuid from its GUID.
let notExplicitCOM = Type.GetTypeFromCLSID(notExplicitGuid)
printfn $"Created {notExplicitCOM.Name} type from CLSID {notExplicitGuid}"
                
// Compare the two type objects.
printfn $"{notExplicit.Name} and {notExplicitCOM.Name} equal: {notExplicit.Equals notExplicitCOM}"       

// Instantiate an ExplicitGuid object.
try
    let obj = Activator.CreateInstance notExplicitCOM
    printfn $"Instantiated a {obj.GetType().Name} object"
with :? COMException as e ->
    printfn $"COM Exception:\n{e.Message}\n"   
// The example displays the following output:
//       Created __ComObject type from CLSID d055cba3-1f83-4bd7-ba19-e22b1b8ec3c4
//       ExplicitGuid and __ComObject equal: False
//       COM Exception:
//       Retrieving the COM class factory for component with CLSID 
//       {D055CBA3-1F83-4BD7-BA19-E22B1B8EC3C4} failed due to the following error: 
//       80040154 Class not registered 
//       (Exception from HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG)).
//       
//       Created __ComObject type from CLSID 74f03346-a718-3516-ac78-f351c7459ffb
//       NoExplicitGuid and __ComObject equal: False
//       COM Exception:
//       Retrieving the COM class factory for component with CLSID 
//       {74F03346-A718-3516-AC78-F351C7459FFB} failed due to the following error: 
//       80040154 Class not registered 
//       (Exception from HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG)).

Imports System.Runtime.InteropServices

<Assembly:ComVisible(True)>

' Define two classes, and assign one an explicit GUID.
<GuidAttribute("d055cba3-1f83-4bd7-ba19-e22b1b8ec3c4")>
Public Class ExplicitGuid
End Class

Public Class NoExplicitGuid
End Class

Module Example
   Public Sub Main()
      Dim explicitType As Type = GetType(ExplicitGuid)
      Dim explicitGuid As Guid = explicitType.GUID
      
      ' Get type of ExplicitGuid from its GUID.
      Dim explicitCOM As Type = Type.GetTypeFromCLSID(explicitGuid)
      Console.WriteLine("Created {0} type from CLSID {1}",
                        explicitCOM.Name, explicitGuid)
                        
      ' Compare the two type objects.
      Console.WriteLine("{0} and {1} equal: {2}",
                        explicitType.Name, explicitCOM.Name,
                        explicitType.Equals(explicitCOM))                  
      
      ' Instantiate an ExplicitGuid object.
      Try 
         Dim obj As Object = Activator.CreateInstance(explicitCOM)
         Console.WriteLine("Instantiated a {0} object", obj.GetType().Name)
      Catch e As COMException
         Console.WriteLine("COM Exception:{1}{0}{1}", e.Message, vbCrLf)   
      End Try 
        
      Dim notExplicit As Type = GetType(NoExplicitGuid)
      Dim notExplicitGuid As Guid = notExplicit.GUID
      
      ' Get type of ExplicitGuid from its GUID.
      Dim notExplicitCOM As Type = Type.GetTypeFromCLSID(notExplicitGuid)
      Console.WriteLine("Created {0} type from CLSID {1}",
                        notExplicitCOM.Name, notExplicitGuid)
                        
      ' Compare the two type objects.
      Console.WriteLine("{0} and {1} equal: {2}",
                        notExplicit.Name, notExplicitCOM.Name,
                        notExplicit.Equals(notExplicitCOM))                  
      
      ' Instantiate an ExplicitGuid object.
      Try 
         Dim obj As Object = Activator.CreateInstance(notExplicitCOM)
         Console.WriteLine("Instantiated a {0} object", obj.GetType().Name)
      Catch e As COMException
         Console.WriteLine("COM Exception:{1}{0}{1}", e.Message, vbCrLf)   
      End Try 
   End Sub
End Module
' The example displays the following output:
'       Created __ComObject type from CLSID d055cba3-1f83-4bd7-ba19-e22b1b8ec3c4
'       ExplicitGuid and __ComObject equal: False
'       COM Exception:
'       Retrieving the COM class factory for component with CLSID 
'       {D055CBA3-1F83-4BD7-BA19-E22B1B8EC3C4} failed due to the following error: 
'       80040154 Class not registered 
'       (Exception from HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG)).
'       
'       Created __ComObject type from CLSID 74f03346-a718-3516-ac78-f351c7459ffb
'       NoExplicitGuid and __ComObject equal: False
'       COM Exception:
'       Retrieving the COM class factory for component with CLSID 
'       {74F03346-A718-3516-AC78-F351C7459FFB} failed due to the following error: 
'       80040154 Class not registered 
'       (Exception from HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG)).

Stattdessen sollte nur zum GetTypeFromCLSID(Guid, String, Boolean) Abrufen der GUID eines nicht verwalteten COM-Objekts verwendet werden, und das resultierende Type Objekt, das an die CreateInstance(Type) -Methode übergeben wird, muss ein nicht verwaltetes COM-Objekt darstellen.

Gilt für: