StackTrace.GetFrame(Int32) Yöntem

Tanım

Ad Alanı:

System.Diagnostics

Bütünleştirilmiş Kod:

System.Diagnostics.StackTrace.dll

Kaynak:

StackTrace.cs

Belirtilen yığın çerçevesini alır.

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

Parametreler

index

Int32

İstenen yığın çerçevesinin dizini.

Döndürülenler

StackFrame

Belirtilen yığın çerçevesi.

Örnekler

Aşağıdaki kod örneği, bir yığın izlemesinde ilk ve son işlev çağrılarını görüntüler.

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

Açıklamalar

Yığın çerçeveleri, gönderilen son yığın çerçevesi olan 0'dan başlayarak numaralandırılır.

Ayrıca bkz.

• StackFrame
• GetFrames()