Assembly : mscorlib (dans mscorlib.dll)
SyntaxeProtected Property HResult As Integer
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)
Valeur de la propriété
Valeur HRESULT.
NotesHRESULT est une valeur 32 bits divisée en trois champs : un code de gravité, un code de service et un code d'erreur. Le code de gravité indique si la valeur de retour représente une information, un avertissement ou une erreur. Le code de service identifie la zone du système responsable de l'erreur. Le code d'erreur est un numéro unique assigné pour représenter l'exception. Chaque exception est mappée à une valeur HRESULT distincte. Lorsque du code managé lève une exception, le runtime passe la valeur HRESULT au client COM. Lorsque du code non managé retourne une erreur, la valeur HRESULT est convertie en une exception qui est ensuite levée par le runtime.
ExempleL'exemple de code suivant définit une classe Exception dérivée qui définit la propriété HResult dans son constructeur.
' 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() */
Plates-formesWindows 98, Windows 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile pour Pocket PC, Windows Mobile pour Smartphone, Windows Server 2003, Windows XP Édition Media Center, Windows XP Professionnel Édition x64, Windows XP SP2, Windows XP Starter Edition
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