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Exception.HResult-Eigenschaft

Ruft HRESULT ab oder legt HRESULT fest. Dies ist ein codierter Wert, der einer bestimmten Ausnahme zugeordnet ist.

Namespace: System
Assembly: mscorlib (in mscorlib.dll)

Syntax

'Declaration
Protected Property HResult As Integer
'Usage
Dim value As Integer

value = Me.HResult

Me.HResult = value
protected int HResult { get; set; }
protected:
property int HResult {
    int get ();
    void set (int value);
}
/** @property */
protected int get_HResult ()

/** @property */
protected void set_HResult (int value)
protected function get HResult () : int

protected function set HResult (value : int)

Eigenschaftenwert

Der HRESULT-Wert.

Hinweise

HRESULT ist ein 32-Bit-Wert, der in drei Felder unterteilt ist: Schweregradcode, Bereichscode und Fehlercode. Der Schweregradcode gibt an, ob der Rückgabewert eine Information, eine Warnung oder einen Fehler darstellt. Der Bereichscode gibt den Systembereich an, in dem der Fehler ausgelöst wurde. Der Fehlercode ist eine eindeutige Zahl, die zur Darstellung der Ausnahme zugewiesen wird. Jede Ausnahme ist einem eindeutigen HRESULT zugeordnet. Wenn verwalteter Code eine Ausnahme auslöst, übergibt die Common Language Runtime HRESULT an den COM-Client. Wenn nicht verwalteter Code einen Fehler zurückgibt, wird HRESULT in eine Ausnahme konvertiert, die dann von der Common Language Runtime ausgelöst wird.

Beispiel

Im folgenden Codebeispiel wird eine abgeleitete Exception-Klasse definiert, in deren Konstruktor die HResult-Eigenschaft festgelegt wird.

' Example for the Exception.HResult property.
Imports System
Imports Microsoft.VisualBasic

Namespace NDP_UE_VB

    ' Create the derived exception class.
    Class SecondLevelException
        Inherits Exception

        Private Const SecondLevelHResult As Integer = &H81234567
       
        ' Set HResult for this exception, and include it in 
        ' the exception message.
        Public Sub New(message As String, inner As Exception)

            MyBase.New( String.Format( "(HRESULT:0x{1:X8}) {0}", _
                message, SecondLevelHResult ), inner )
            HResult = SecondLevelHResult
        End Sub ' New
    End Class ' SecondLevelException

    Module HResultDemo
       
        Sub Main()
            Console.WriteLine( _
                "This example of Exception.HResult " & _
                "generates the following output." & vbCrLf )
              
            ' This function forces a division by 0 and throws 
            ' a second exception.
            Try
                Try
                    Dim zero As Integer = 0
                    Dim ecks As Integer = 1 \ zero

                Catch ex As Exception
                    Throw New SecondLevelException( _
                        "Forced a division by 0 and threw " & _
                        "a second exception.", ex )
                End Try
              
            Catch ex As Exception
                Console.WriteLine( ex.ToString( ) )
            End Try
        End Sub ' Main

    End Module ' HResultDemo
End Namespace ' NDP_UE_VB

' This example of Exception.HResult generates the following output.
' 
' NDP_UE_VB.SecondLevelException: (HRESULT:0x81234567) Forced a division by 0 a
' nd threw a second exception. ---> System.DivideByZeroException: Attempted to
' divide by zero.
'    at NDP_UE_VB.HResultDemo.Main()
'    --- End of inner exception stack trace ---
'    at NDP_UE_VB.HResultDemo.Main()
// Example for the Exception.HResult property.
using System;

namespace NDP_UE_CS
{
    // Create the derived exception class.
    class SecondLevelException : Exception
    {
        const int SecondLevelHResult = unchecked( (int)0x81234567 );

        // Set HResult for this exception, and include it in 
        // the exception message.
        public SecondLevelException( string message, Exception inner ) :
            base( string.Format( "(HRESULT:0x{1:X8}) {0}", 
                message, SecondLevelHResult ), inner )
        {
            HResult = SecondLevelHResult;
        }
    }

    class HResultDemo 
    {
        public static void Main() 
        {
            Console.WriteLine( 
                "This example of Exception.HResult " +
                "generates the following output.\n" );

            // This function forces a division by 0 and throws 
            // a second exception.
            try
            {
                try
                {
                    int  zero = 0;
                    int  ecks = 1 / zero;
                }
                catch( Exception ex )
                {
                    throw new SecondLevelException( 
                        "Forced a division by 0 and threw " +
                        "a second exception.", ex );
                }
            }
            catch( Exception ex )
            {
                Console.WriteLine( ex.ToString( ) );
            }
        }
    }
}

/*
This example of Exception.HResult generates the following output.

NDP_UE_CS.SecondLevelException: (HRESULT:0x81234567) Forced a division by 0 and
 threw a second exception. ---> System.DivideByZeroException: Attempted to divi
de by zero.
   at NDP_UE_CS.HResultDemo.Main()
   --- End of inner exception stack trace ---
   at NDP_UE_CS.HResultDemo.Main()
*/
// Example for the Exception::HResult property.
using namespace System;

namespace NDP_UE_CPP
{

   // Create the derived exception class.
   ref class SecondLevelException: public Exception
   {
   private:
      static int SecondLevelHResult = (int)0x81234567;

   public:

      // Set HResult for this exception, and include it in 
      // the exception message.
      SecondLevelException( String^ message, Exception^ inner )
         : Exception( String::Format( "(HRESULT:0x{1:X8}) {0}", message, SecondLevelHResult ), inner )
      {
         HResult = SecondLevelHResult;
      }

   };


   // This function forces a division by 0 and throws 
   // a second exception.
   void DivideBy0()
   {
      try
      {
         try
         {
            int zero = 0;
            int ecks = 1 / zero;
         }
         catch ( Exception^ ex ) 
         {
            throw gcnew SecondLevelException( "Forced a division by 0 and threw "
            "a second exception.",ex );
         }

      }
      catch ( Exception^ ex ) 
      {
         Console::WriteLine( ex->ToString() );
      }

   }

}

int main()
{
   Console::WriteLine( "This example of Exception::HResult "
   "generates the following output.\n" );
   NDP_UE_CPP::DivideBy0();
}

/*
This example of Exception::HResult generates the following output.

NDP_UE_CPP.SecondLevelException: (HRESULT:0x81234567) Forced a division by 0 an
d threw a second exception. ---> System.DivideByZeroException: Attempted to div
ide by zero.
   at NDP_UE_CPP.DivideBy0()
   --- End of inner exception stack trace ---
   at NDP_UE_CPP.DivideBy0()
*/
// Example for the Exception.HResult property.
package NDP_UE_JSL ; 

import System.* ;

// Create the derived exception class.
class SecondLevelException  extends System.Exception
{
    private int SecondLevelHResult = (int)(0x81234567);

    // Set HResult for this exception, and include it in 
    // the exception message.
    public SecondLevelException(String message, System.Exception inner)
    {
        super(String.Format("(HRESULT:0x{1:X8}) {0}", message, 
            ((System.Int32)(int)(0x81234567)).ToString("X8")), inner);
        set_HResult(SecondLevelHResult);
    } //SecondLevelException
} //SecondLevelException

class HResultDemo
{
    public static void main(String[] args)
    {
        Console.WriteLine(("This example of Exception.HResult " 
            + "generates the following output.\n"));

        // This function forces a division by 0 and throws 
        // a second exception.
        try {
            try {
                int zero = 0;
                int ecks = 1 / zero;
            }
            catch (System.Exception ex) {
                throw new SecondLevelException("Forced a division by 0 and " 
                    + "threw a second exception.", ex);
            }
        }
        catch (System.Exception ex) {
            Console.WriteLine(ex.toString());
        }
    } //main
} //HResultDemo
   
/*
This example of Exception.HResult generates the following output.

NDP_UE_JSL.SecondLevelException: (HRESULT:0x81234567) Forced a division by 0 
and threw a second exception. ---> System.DivideByZeroException: Attempted to 
divi de by zero.
   at NDP_UE_JSL.HResultDemo.Main()
   --- End of inner exception stack trace ---
   at NDP_UE_JSL.HResultDemo.Main()
*/

Plattformen

Windows 98, Windows 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile für Pocket PC, Windows Mobile für Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

.NET Framework unterstützt nicht alle Versionen sämtlicher Plattformen. Eine Liste der unterstützten Versionen finden Sie unter Systemanforderungen.

Versionsinformationen

.NET Framework

Unterstützt in: 2.0, 1.1, 1.0

.NET Compact Framework

Unterstützt in: 2.0

Siehe auch

Referenz

Exception-Klasse
Exception-Member
System-Namespace