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Type.GetTypeFromCLSID Metoda

  • Reference

Definice

Obor názvů:
System
Sestavení:
System.Runtime.dll
Sestavení:
mscorlib.dll
Sestavení:
netstandard.dll

Získá typ přidružený k zadanému identifikátoru třídy (CLSID).

Přetížení

GetTypeFromCLSID(Guid)

Získá typ přidružený k identifikátoru zadané třídy (CLSID).
GetTypeFromCLSID(Guid, Boolean)

Získá typ přidružený k identifikátoru zadané třídy (CLSID), určující, zda má být vyvolána výjimka, pokud dojde k chybě při načítání typu.
GetTypeFromCLSID(Guid, String)

Získá typ přidružený k identifikátoru zadané třídy (CLSID) ze zadaného serveru.
GetTypeFromCLSID(Guid, String, Boolean)

Získá typ přidružený k identifikátoru zadané třídy (CLSID) ze zadaného serveru a určuje, zda má být vyvolána výjimka, pokud dojde k chybě při načítání typu.

GetTypeFromCLSID(Guid)

Zdroj:
Type.cs
Zdroj:
Type.cs
Zdroj:
Type.cs

Získá typ přidružený k identifikátoru zadané třídy (CLSID).

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

Parametry

clsid
Guid

Identifikátor CLSID typu, který má být získán.

Návraty

Type

System.__ComObject bez ohledu na to, zda je identifikátor CLSID platný.

Atributy
SupportedOSPlatformAttribute

Příklady

Následující příklad používá CLSID objektu aplikace Microsoft Word k načtení typu com, který představuje aplikaci Microsoft Word. Poté vytvoří instanci typu voláním Activator.CreateInstance metody a zavře ji voláním metody Application.Quit .

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

Poznámky

Metoda GetTypeFromCLSID podporuje pozdní přístup k nespravovaným objektům COM z aplikací .NET Framework, pokud znáte identifikátor třídy objektu COM (CLSID). Identifikátor třídy modelu COM je definován v klíči HKEY_CLASSES_ROOT\CLSID registru. Můžete načíst hodnotu IsCOMObject vlastnosti určit, zda typ vrácený touto metodou je objekt COM.

Tip

Můžete volat metodu GetTypeFromProgID pro pozdní přístup k objektům COM, jejichž programový identifikátor (ProgID) znáte.

Vytvoření instance nespravovaného objektu COM z jeho IDENTIFIKÁTORu CLSID je dvoustupňový proces:

  1. Voláním TypeGetTypeFromCLSID metody získejte objekt, který představuje__ComObject objekt odpovídající identifikátoru CLSID.

  2. Activator.CreateInstance(Type) Volání metody pro vytvoření instance objektu COM.

Obrázek najdete v příkladu.

Přetížení GetTypeFromCLSID(Guid) ignoruje všechny výjimky, ke kterým může dojít při vytváření instance objektu Type na základě argumentu clsid . Všimněte si, že pokud clsid se v registru nenajde, nevyvolá se žádná výjimka.

Poznámky pro volající

Tato metoda je určena pro použití při práci s objekty COM, nikoli s objekty rozhraní .NET Framework. Všechny spravované objekty, včetně těch, které jsou viditelné modelu COM (tj. jejich ComVisibleAttribute atribut je true) mají identifikátor GUID, který je vrácen vlastností GUID . I když metoda vrací Type objekt, který odpovídá identifikátoru GUID pro objekty rozhraní .NET Framework, nelze tento objekt použít Type k vytvoření instance typu voláním CreateInstance(Type) metody, jak ukazuje následující příklad.

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)).

Místo toho GetTypeFromCLSID(Guid, String, Boolean) by měl být použit pouze k načtení identifikátoru GUID nespravovaného objektu COM a výsledný Type objekt, který je předán CreateInstance(Type) metodě musí představovat nespravovaný objekt COM.

Platí pro

GetTypeFromCLSID(Guid, Boolean)

Zdroj:
Type.cs
Zdroj:
Type.cs
Zdroj:
Type.cs

Získá typ přidružený k identifikátoru zadané třídy (CLSID), určující, zda má být vyvolána výjimka, pokud dojde k chybě při načítání typu.

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

Parametry

clsid
Guid

Identifikátor CLSID typu, který má být získán.

throwOnError
Boolean

true k vyvolání jakékoli výjimky, ke které dojde.

-nebo-

false ignorovat všechny výjimky, ke kterým dojde.

Návraty

Type

System.__ComObject bez ohledu na to, zda je identifikátor CLSID platný.

Atributy
SupportedOSPlatformAttribute

Příklady

Následující příklad používá CLSID objektu aplikace Microsoft Word k načtení typu com, který představuje aplikaci Microsoft Word. Poté vytvoří instanci typu voláním Activator.CreateInstance metody a zavře ji voláním metody Application.Quit . Pokud při načítání typu dojde k chybě, vyvolá se výjimka.

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

Poznámky

Metoda GetTypeFromCLSID podporuje pozdní přístup k nespravovaným objektům COM z aplikací .NET Framework, pokud znáte identifikátor třídy objektu COM (CLSID). Identifikátor třídy modelu COM je definován v klíči HKEY_CLASSES_ROOT\CLSID registru. Můžete načíst hodnotu IsCOMObject vlastnosti určit, zda typ vrácený touto metodou je objekt COM.

Tip

Můžete volat metodu GetTypeFromProgID pro pozdní přístup k objektům COM, jejichž programový identifikátor (ProgID) znáte.

Vytvoření instance nespravovaného objektu COM z jeho IDENTIFIKÁTORu CLSID je dvoustupňový proces:

  1. Voláním TypeGetTypeFromCLSID metody získejte objekt, který představuje __ComObject objekt odpovídající identifikátoru CLSID.

  2. Activator.CreateInstance(Type) Volání metody pro vytvoření instance objektu COM.

Obrázek najdete v příkladu.

Při zadávání true pro throwOnErrorvyvolání výjimek, jako je OutOfMemoryException , ale u neregistrovaných identifikátorů CLSID nedojde k selhání.

Poznámky pro volající

Tato metoda je určena pro použití při práci s objekty COM, nikoli s objekty rozhraní .NET Framework. Všechny spravované objekty, včetně těch, které jsou viditelné modelu COM (tj. jejich ComVisibleAttribute atribut je true) mají identifikátor GUID, který je vrácen vlastností GUID . I když metoda vrací Type objekt, který odpovídá identifikátoru GUID pro objekty rozhraní .NET Framework, nelze tento objekt použít Type k vytvoření instance typu voláním CreateInstance(Type) metody, jak ukazuje následující příklad.

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)).

Místo toho GetTypeFromCLSID(Guid, String, Boolean) by měl být použit pouze k načtení identifikátoru GUID nespravovaného objektu COM a výsledný Type objekt, který je předán CreateInstance(Type) metodě musí představovat nespravovaný objekt COM.

Platí pro

GetTypeFromCLSID(Guid, String)

Zdroj:
Type.cs
Zdroj:
Type.cs
Zdroj:
Type.cs

Získá typ přidružený k identifikátoru zadané třídy (CLSID) ze zadaného serveru.

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

Parametry

clsid
Guid

Identifikátor CLSID typu, který má být získán.

server
String

Server, ze kterého chcete typ načíst. Pokud je nullnázev serveru , tato metoda se automaticky vrátí k místnímu počítači.

Návraty

Type

System.__ComObject bez ohledu na to, zda je identifikátor CLSID platný.

Atributy
SupportedOSPlatformAttribute

Příklady

Následující příklad používá IDENTIFIKÁTOR CLSID objektu aplikace Microsoft Word k načtení typu com, který představuje aplikaci Microsoft Word ze serveru s názvem computer17.central.contoso.com. Poté vytvoří instanci typu voláním Activator.CreateInstance metody a zavře ji voláním metody Application.Quit .

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

Poznámky

Metoda GetTypeFromCLSID podporuje pozdní přístup k nespravovaným objektům COM z aplikací .NET Framework, pokud znáte identifikátor třídy objektu COM (CLSID). Identifikátor třídy modelu COM je definován v klíči HKEY_CLASSES_ROOT\CLSID registru. Můžete načíst hodnotu IsCOMObject vlastnosti určit, zda typ vrácený touto metodou je objekt COM.

Tip

Můžete volat metodu GetTypeFromProgID pro pozdní přístup k objektům COM, jejichž programový identifikátor (ProgID) znáte.

Vytvoření instance nespravovaného objektu COM z jeho IDENTIFIKÁTORu CLSID je dvoustupňový proces:

  1. Voláním TypeGetTypeFromCLSID metody získejte objekt, který představuje __ComObject objekt odpovídající identifikátoru CLSID.

  2. Activator.CreateInstance(Type) Volání metody pro vytvoření instance objektu COM.

Poznámky pro volající

Tato metoda je určena pro použití při práci s objekty COM, nikoli s objekty rozhraní .NET Framework. Všechny spravované objekty, včetně těch, které jsou viditelné modelu COM (tj. jejich ComVisibleAttribute atribut je true) mají identifikátor GUID, který je vrácen vlastností GUID . I když metoda vrací Type objekt, který odpovídá identifikátoru GUID pro objekty rozhraní .NET Framework, nelze tento objekt použít Type k vytvoření instance typu voláním CreateInstance(Type) metody, jak ukazuje následující příklad.

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)).

Místo toho GetTypeFromCLSID(Guid, String, Boolean) by měl být použit pouze k načtení identifikátoru GUID nespravovaného objektu COM a výsledný Type objekt, který je předán CreateInstance(Type) metodě musí představovat nespravovaný objekt COM.

Platí pro

GetTypeFromCLSID(Guid, String, Boolean)

Zdroj:
Type.cs
Zdroj:
Type.cs
Zdroj:
Type.cs

Získá typ přidružený k identifikátoru zadané třídy (CLSID) ze zadaného serveru a určuje, zda má být vyvolána výjimka, pokud dojde k chybě při načítání typu.

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

Parametry

clsid
Guid

Identifikátor CLSID typu, který má být získán.

server
String

Server, ze kterého chcete typ načíst. Pokud je nullnázev serveru , tato metoda se automaticky vrátí k místnímu počítači.

throwOnError
Boolean

true k vyvolání jakékoli výjimky, ke které dojde.

-nebo-

false ignorovat všechny výjimky, ke kterým dojde.

Návraty

Type

System.__ComObject bez ohledu na to, zda je identifikátor CLSID platný.

Atributy
SupportedOSPlatformAttribute

Příklady

Následující příklad používá IDENTIFIKÁTOR CLSID objektu aplikace Microsoft Word k načtení typu com, který představuje aplikaci Microsoft Word ze serveru s názvem computer17.central.contoso.com. Poté vytvoří instanci typu voláním Activator.CreateInstance metody a zavře ji voláním metody Application.Quit . Pokud při načítání typu dojde k chybě, vyvolá se výjimka.

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

Poznámky

Metoda GetTypeFromCLSID podporuje pozdní přístup k nespravovaným objektům COM z aplikací .NET Framework, pokud znáte identifikátor třídy objektu COM (CLSID). Identifikátor třídy modelu COM je definován v klíči HKEY_CLASSES_ROOT\CLSID registru. Můžete načíst hodnotu IsCOMObject vlastnosti určit, zda typ vrácený touto metodou je objekt COM.

Tip

Můžete volat metodu GetTypeFromProgID pro pozdní přístup k objektům COM, jejichž programový identifikátor (ProgID) znáte.

Vytvoření instance nespravovaného objektu COM z jeho IDENTIFIKÁTORu CLSID je dvoustupňový proces:

  1. Voláním TypeGetTypeFromCLSID metody získejte objekt, který představuje __ComObject objekt odpovídající identifikátoru CLSID.

  2. Activator.CreateInstance(Type) Volání metody pro vytvoření instance objektu COM.

Při zadávání true pro throwOnErrorvyvolání výjimek, jako je OutOfMemoryException , ale u neregistrovaných identifikátorů CLSID nedojde k selhání.

Poznámky pro volající

Tato metoda je určena pro použití při práci s objekty COM, nikoli s objekty rozhraní .NET Framework. Všechny spravované objekty, včetně těch, které jsou viditelné modelu COM (tj. jejich ComVisibleAttribute atribut je true) mají identifikátor GUID, který je vrácen vlastností GUID . GetTypeFromCLSID(Guid, String, Boolean) I když metoda vrací Type objekt, který odpovídá identifikátoru GUID konkrétního spravovaného objektu, nemůžete ho použít Type k vytvoření instance typu voláním CreateInstance(Type) metody , jak ukazuje následující příklad.

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)).

Místo toho GetTypeFromCLSID(Guid, String, Boolean) by měl být použit pouze k načtení identifikátoru GUID nespravovaného objektu COM a výsledný Type objekt, který je předán CreateInstance(Type) metodě musí představovat nespravovaný objekt COM.

Platí pro