StackTrace.GetFrame(Int32) StackTrace.GetFrame(Int32) StackTrace.GetFrame(Int32) StackTrace.GetFrame(Int32) Method

Definizione

Ottiene lo stack frame specificato.Gets the specified stack frame.

public:
 virtual System::Diagnostics::StackFrame ^ GetFrame(int index);
public virtual System.Diagnostics.StackFrame GetFrame (int index);
abstract member GetFrame : int -> System.Diagnostics.StackFrame
override this.GetFrame : int -> System.Diagnostics.StackFrame
Public Overridable Function GetFrame (index As Integer) As StackFrame

Parametri

index
Int32 Int32 Int32 Int32

Indice dello stack frame richiesto.The index of the stack frame requested.

Restituisce

Stack frame specificato.The specified stack frame.

Esempi

Nell'esempio di codice seguente vengono visualizzate la prima e l'ultima chiamata di funzione in una traccia dello stack.The following code example displays the first and last function calls in a stack trace.

void Level5Method()
{
   try
   {
      ClassLevel6^ nestedClass = gcnew ClassLevel6;
      nestedClass->Level6Method();
   }
   catch ( Exception^ e ) 
   {
      Console::WriteLine( " Level5Method exception handler" );
      StackTrace^ st = gcnew StackTrace;
      
      // Display the most recent function call.
      StackFrame^ sf = st->GetFrame( 0 );
      Console::WriteLine();
      Console::WriteLine( "  Exception in method: " );
      Console::WriteLine( "      {0}", sf->GetMethod() );
      if ( st->FrameCount > 1 )
      {
         
         // Display the highest-level function call
         // in the trace.
         sf = st->GetFrame( st->FrameCount - 1 );
         Console::WriteLine( "  Original function call at top of call stack):" );
         Console::WriteLine( "      {0}", sf->GetMethod() );
      }
      Console::WriteLine();
      Console::WriteLine( "   ... throwing exception to next level ..." );
      Console::WriteLine( "-------------------------------------------------\n" );
      throw e;
   }

}

public void Level5Method()
{
   try 
   {
      ClassLevel6 nestedClass = new ClassLevel6();
      nestedClass.Level6Method();
   }
   catch (Exception e) 
   {
      Console.WriteLine(" Level5Method exception handler");

      StackTrace st = new StackTrace();
      
      // Display the most recent function call.
      StackFrame sf = st.GetFrame(0);
      Console.WriteLine();
      Console.WriteLine("  Exception in method: ");
      Console.WriteLine("      {0}", sf.GetMethod());

      if (st.FrameCount >1)
      {
         // Display the highest-level function call 
         // in the trace.
         sf = st.GetFrame(st.FrameCount-1);
         Console.WriteLine("  Original function call at top of call stack):");
         Console.WriteLine("      {0}", sf.GetMethod());
      }

      Console.WriteLine();
      Console.WriteLine("   ... throwing exception to next level ...");
      Console.WriteLine("-------------------------------------------------\n");
      throw e;
   }        
}
Public Sub Level5Method()
   Try
      Dim nestedClass As New ClassLevel6()
      nestedClass.Level6Method()
   Catch e As Exception
      Console.WriteLine(" Level5Method exception handler")
      
      Dim st As New StackTrace()
      
      ' Display the most recent function call.
      Dim sf As StackFrame = st.GetFrame(0)
      Console.WriteLine()
      Console.WriteLine("  Exception in method: ")
      Console.WriteLine("      {0}", sf.GetMethod())
      
      If st.FrameCount > 1 Then
         ' Display the highest-level function call in the trace.
         sf = st.GetFrame((st.FrameCount - 1))
         Console.WriteLine("  Original function call at top of call stack):")
         Console.WriteLine("      {0}", sf.GetMethod())
      End If
      
      Console.WriteLine()
      Console.WriteLine("   ... throwing exception to next level ...")
      Console.WriteLine("-------------------------------------------------")
      Console.WriteLine()
      Throw e
   End Try
End Sub

Commenti

Gli stack frame sono numerati a partire da 0, che è l'ultimo stack frame inserito.Stack frames are numbered starting at 0, which is the last stack frame pushed.

Si applica a

Vedi anche