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StackFrame Classe

Definizione

Fornisce informazioni su un oggetto StackFrame che rappresenta una chiamata a una funzione sullo stack di chiamate per il thread corrente.

public ref class StackFrame sealed
public ref class StackFrame
public sealed class StackFrame
public class StackFrame
[System.Serializable]
public class StackFrame
[System.Serializable]
[System.Runtime.InteropServices.ComVisible(true)]
public class StackFrame
type StackFrame = class
[<System.Serializable>]
type StackFrame = class
[<System.Serializable>]
[<System.Runtime.InteropServices.ComVisible(true)>]
type StackFrame = class
Public NotInheritable Class StackFrame
Public Class StackFrame
Ereditarietà
StackFrame
Attributi

Esempio

Nell'esempio StackFrame seguente viene illustrato l'uso della classe per fornire le informazioni sul frame dello stack per una traccia dello stack.

using System;
using System.Diagnostics;

namespace StackFrameExample
{
    class Program
    {
        static void Main(string[] args)
        {
            try
            {
                Method1();
            }
            catch (Exception e)
            {
                StackTrace st = new StackTrace();
                StackTrace st1 = new StackTrace(new StackFrame(true));
                Console.WriteLine(" Stack trace for Main: {0}",
                   st1.ToString());
                Console.WriteLine(st.ToString());
            }
            Console.WriteLine("Press Enter to exit.");
            Console.ReadLine();
        }
        private static void Method1()
        {
            try
            {
                Method2(4);
            }
            catch (Exception e)
            {
                StackTrace st = new StackTrace();
                StackTrace st1 = new StackTrace(new StackFrame(true));
                Console.WriteLine(" Stack trace for Method1: {0}",
                   st1.ToString());
                Console.WriteLine(st.ToString());
                // Build a stack trace for the next frame.
                StackTrace st2 = new StackTrace(new StackFrame(1, true));
                Console.WriteLine(" Stack trace for next level frame: {0}",
                   st2.ToString());
                throw e;
            }
        }
        private static void Method2( int count)
        {
            try
            {
                if (count < 5)
                    throw new ArgumentException("count too large", "count");
            }
            catch (Exception e)
            {
                StackTrace st = new StackTrace();
                StackTrace st1 = new StackTrace(new StackFrame(2,true));
                Console.WriteLine(" Stack trace for Method2: {0}",
                   st1.ToString());
                Console.WriteLine(st.ToString());
                throw e;
            }
        }
    }
}
Imports System.Diagnostics



Class Program

    Shared Sub Main(ByVal args() As String)
        Try
            Method1()
        Catch e As Exception
            Dim st As New StackTrace()
            Dim st1 As New StackTrace(New StackFrame(True))
            Console.WriteLine(" Stack trace for Main: {0}", st1.ToString())
            Console.WriteLine(st.ToString())
        End Try
        Console.WriteLine("Press Enter to exit.")
        Console.ReadLine()

    End Sub

    Private Shared Sub Method1()
        Try
            Method2(4)
        Catch e As Exception
            Dim st As New StackTrace()
            Dim st1 As New StackTrace(New StackFrame(True))
            Console.WriteLine(" Stack trace for Method1: {0}", st1.ToString())
            Console.WriteLine(st.ToString())
            ' Build a stack trace for the next frame.
            Dim st2 As New StackTrace(New StackFrame(1, True))
            Console.WriteLine(" Stack trace for next level frame: {0}", st2.ToString())
            Throw e
        End Try

    End Sub

    Private Shared Sub Method2(ByVal count As Integer)
        Try
            If count < 5 Then
                Throw New ArgumentException("count too large", "count")
            End If
        Catch e As Exception
            Dim st As New StackTrace()
            Dim st1 As New StackTrace(New StackFrame(2, True))
            Console.WriteLine(" Stack trace for Method2: {0}", st1.ToString())
            Console.WriteLine(st.ToString())
            Throw e
        End Try

    End Sub
End Class

Nell'esempio seguente viene illustrato l'uso dei membri della StackFrame classe.

#using <System.dll>

using namespace System;
using namespace System::Diagnostics;

// This console application illustrates various uses
// of the StackTrace and StackFrame classes.
namespace SampleInternal
{
   public ref class ClassLevel6
   {
   public:
      void Level6Method()
      {
         throw gcnew Exception( "An error occurred in the lowest internal class method." );
      }

   };

   public ref class ClassLevel5
   {
   public:

      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 ref class ClassLevel4
   {
   public:
      void Level4Method()
      {
         
         try
         {
            ClassLevel5^ nestedClass = gcnew ClassLevel5;
            nestedClass->Level5Method();
         }
         catch ( Exception^ e ) 
         {
            Console::WriteLine( " Level4Method exception handler" );
            
            // Build a stack trace from a dummy stack frame.
            // Explicitly specify the source file name, line number
            // and column number.
            StackTrace^ st = gcnew StackTrace( gcnew StackFrame( "source.cs",79,24 ) );
            Console::WriteLine( " Stack trace with dummy stack frame: {0}", st->ToString() );
            
            // Access the StackFrames explicitly to display the file
            // name, line number and column number properties.
            // StackTrace.ToString only includes the method name. 
            for ( int i = 0; i < st->FrameCount; i++ )
            {
               StackFrame^ sf = st->GetFrame( i );
               Console::WriteLine( " File: {0}", sf->GetFileName() );
               Console::WriteLine( " Line Number: {0}", sf->GetFileLineNumber().ToString() );
               Console::WriteLine( " Column Number: {0}", sf->GetFileColumnNumber().ToString() );

            }
            Console::WriteLine();
            Console::WriteLine( "   ... throwing exception to next level ..." );
            Console::WriteLine( "-------------------------------------------------\n" );
            throw e;
         }

         
      }

   };

   public ref class ClassLevel3
   {
   public:

      void Level3Method()
      {
         try
         {
            ClassLevel4^ nestedClass = gcnew ClassLevel4;
            nestedClass->Level4Method();
         }
         catch ( Exception^ e ) 
         {
            Console::WriteLine( " Level3Method exception handler" );
            
            // Build a stack trace from a dummy stack frame.
            // Explicitly specify the source file name and line number.
            StackTrace^ st = gcnew StackTrace( gcnew StackFrame( "source.cs",60 ) );
            Console::WriteLine( " Stack trace with dummy stack frame: {0}", st->ToString() );
            for ( int i = 0; i < st->FrameCount; i++ )
            {
               
               // Display the stack frame properties.
               StackFrame^ sf = st->GetFrame( i );
               Console::WriteLine( " File: {0}", sf->GetFileName() );
               Console::WriteLine( " Line Number: {0}", sf->GetFileLineNumber().ToString() );
               
               // Note that the column number defaults to zero
               // when not initialized.
               Console::WriteLine( " Column Number: {0}", sf->GetFileColumnNumber().ToString() );
               Console::WriteLine( " Intermediate Language Offset: {0}", sf->GetILOffset().ToString() );
               Console::WriteLine( " Native Offset: {0}", sf->GetNativeOffset().ToString() );
               

            }
            Console::WriteLine();
            Console::WriteLine( "   ... throwing exception to next level ..." );
            Console::WriteLine( "-------------------------------------------------\n" );
            throw e;
         }

      }

   };

   public ref class ClassLevel2
   {
   public:

      void Level2Method()
      {
         try
         {
            ClassLevel3^ nestedClass = gcnew ClassLevel3;
            nestedClass->Level3Method();
         }
         catch ( Exception^ e ) 
         {
            Console::WriteLine( " Level2Method exception handler" );
            
            // Display the full call stack at this level.
            StackTrace^ st1 = gcnew StackTrace( true );
            Console::WriteLine( " Stack trace for this level: {0}", st1->ToString() );
            
            // Build a stack trace from one frame, skipping the
            // current frame and using the next frame.
            StackTrace^ st2 = gcnew StackTrace( gcnew StackFrame( 1,true ) );
            Console::WriteLine( " Stack trace built with next level frame: {0}", st2->ToString() );
            
            // Build a stack trace skipping the current frame, and
            // including all the other frames.
            StackTrace^ st3 = gcnew StackTrace( 1,true );
            Console::WriteLine( " Stack trace built from the next level up: {0}", st3->ToString() );
            Console::WriteLine();
            Console::WriteLine( "   ... throwing exception to next level ..." );
            Console::WriteLine( "-------------------------------------------------\n" );
            throw e;
         }

      }

   };

   public ref class ClassLevel1
   {
   public:

      void InternalMethod()
      {
         try
         {
            ClassLevel2^ nestedClass = gcnew ClassLevel2;
            nestedClass->Level2Method();
         }
         catch ( Exception^ e ) 
         {
            Console::WriteLine( " InternalMethod exception handler" );
            
            // Build a stack trace from one frame, skipping the
            // current frame and using the next frame.  By
            // default, file and line information are not displayed.
            StackTrace^ st = gcnew StackTrace( gcnew StackFrame( 1 ) );
            Console::WriteLine( " Stack trace for next level frame: {0}", st->ToString() );
            Console::WriteLine( " Stack frame for next level: " );
            Console::WriteLine( "   {0}", st->GetFrame( 0 )->ToString() );
            Console::WriteLine( " Line Number: {0}", st->GetFrame( 0 )->GetFileLineNumber().ToString() );
            Console::WriteLine();
            Console::WriteLine( "   ... throwing exception to next level ..." );
            Console::WriteLine( "-------------------------------------------------\n" );
            throw e;
         }

      }

   };

}


using namespace SampleInternal;

namespace SamplePublic
{
   class ConsoleApp
   {
   public:


      [STAThread]
      static void Main()
      {
         ClassLevel1 ^ mainClass = gcnew ClassLevel1;
         try
         {
            mainClass->InternalMethod();
         }
         catch ( Exception^ e ) 
         {
            Console::WriteLine( " Main method exception handler" );
            
            // Display file and line information, if available.
            StackTrace^ st = gcnew StackTrace( gcnew StackFrame( true ) );
            Console::WriteLine( " Stack trace for current level: {0}", st->ToString() );
            Console::WriteLine( " File: {0}", st->GetFrame( 0 )->GetFileName() );
            Console::WriteLine( " Line Number: {0}", st->GetFrame( 0 )->GetFileLineNumber().ToString() );
            Console::WriteLine();
            Console::WriteLine( "-------------------------------------------------\n" );
         }

      }

   };

}

int main()
{
   SamplePublic::ConsoleApp::Main();
}

using System;
using System.Diagnostics;

using SampleInternal;

namespace SamplePublic
{
    // This console application illustrates various uses
    // of the StackTrace and StackFrame classes.
    class ConsoleApp
    {
       [STAThread]
       static void Main()
        {
            ClassLevel1 mainClass = new ClassLevel1();

            try {
                mainClass.InternalMethod();
            }
            catch (Exception) {
               Console.WriteLine(" Main method exception handler");

               // Display file and line information, if available.
               StackTrace st = new StackTrace(new StackFrame(true));
               Console.WriteLine(" Stack trace for current level: {0}",
                   st.ToString());
               Console.WriteLine(" File: {0}",
                  st.GetFrame(0).GetFileName());
               Console.WriteLine(" Line Number: {0}",
                   st.GetFrame(0).GetFileLineNumber().ToString());

               Console.WriteLine();
               Console.WriteLine("-------------------------------------------------\n");
            }
        }
    }
}

namespace SampleInternal
{
   public class ClassLevel1
   {
      public void InternalMethod()
      {
         try
         {
            ClassLevel2 nestedClass = new ClassLevel2();
            nestedClass.Level2Method();
         }
         catch (Exception e)
         {
            Console.WriteLine(" InternalMethod exception handler");

            // Build a stack trace from one frame, skipping the
            // current frame and using the next frame.  By
            // default, file and line information are not displayed.
            StackTrace st = new StackTrace(new StackFrame(1));
            Console.WriteLine(" Stack trace for next level frame: {0}",
               st.ToString());
            Console.WriteLine(" Stack frame for next level: ");
            Console.WriteLine("   {0}", st.GetFrame(0).ToString());

            Console.WriteLine(" Line Number: {0}",
               st.GetFrame(0).GetFileLineNumber().ToString());

            Console.WriteLine();
            Console.WriteLine("   ... throwing exception to next level ...");
            Console.WriteLine("-------------------------------------------------\n");
            throw e;
         }
      }
   }

   public class ClassLevel2
   {
      public void Level2Method()
      {
         try
         {
            ClassLevel3 nestedClass = new ClassLevel3();
            nestedClass.Level3Method();
         }
         catch (Exception e)
         {
            Console.WriteLine(" Level2Method exception handler");

            // Display the full call stack at this level.
            StackTrace st1 = new StackTrace(true);
            Console.WriteLine(" Stack trace for this level: {0}",
               st1.ToString());

            // Build a stack trace from one frame, skipping the current
            // frame and using the next frame.
            StackTrace st2 = new StackTrace(new StackFrame(1, true));
            Console.WriteLine(" Stack trace built with next level frame: {0}",
               st2.ToString());

            // Build a stack trace skipping the current frame, and
            // including all the other frames.
            StackTrace st3 = new StackTrace(1, true);
            Console.WriteLine(" Stack trace built from the next level up: {0}",
               st3.ToString());

            Console.WriteLine();
            Console.WriteLine("   ... throwing exception to next level ...");
            Console.WriteLine("-------------------------------------------------\n");
            throw e;
         }
      }
   }

   public class ClassLevel3
   {
      public void Level3Method()
      {
         try
         {
            ClassLevel4 nestedClass = new ClassLevel4();
            nestedClass.Level4Method();
         }
         catch (Exception e)
         {
            Console.WriteLine(" Level3Method exception handler");

            // Build a stack trace from a dummy stack frame.
            // Explicitly specify the source file name and
            // line number.
            StackTrace st = new StackTrace(new StackFrame("source.cs", 60));
            Console.WriteLine(" Stack trace with dummy stack frame: {0}",
                        st.ToString());
            for(int i =0; i< st.FrameCount; i++ )
            {
               // Display the stack frame properties.
               StackFrame sf = st.GetFrame(i);
               Console.WriteLine(" File: {0}", sf.GetFileName());
               Console.WriteLine(" Line Number: {0}",
                  sf.GetFileLineNumber());
               // Note that the column number defaults to zero
               // when not initialized.
               Console.WriteLine(" Column Number: {0}",
                  sf.GetFileColumnNumber());
               if (sf.GetILOffset() != StackFrame.OFFSET_UNKNOWN)
               {
                  Console.WriteLine(" Intermediate Language Offset: {0}",
                     sf.GetILOffset());
               }
               if (sf.GetNativeOffset() != StackFrame.OFFSET_UNKNOWN)
               {
                  Console.WriteLine(" Native Offset: {0}",
                     sf.GetNativeOffset());
               }
            }
            Console.WriteLine();
            Console.WriteLine("   ... throwing exception to next level ...");
            Console.WriteLine("-------------------------------------------------\n");
            throw e;
         }
      }
   }

   public class ClassLevel4
   {
      public void Level4Method()
      {
         try
         {
            ClassLevel5 nestedClass = new ClassLevel5();
            nestedClass.Level5Method();
         }
         catch (Exception e)
         {
            Console.WriteLine(" Level4Method exception handler");

            // Build a stack trace from a dummy stack frame.
            // Explicitly specify the source file name, line number
            // and column number.
            StackTrace st = new StackTrace(new StackFrame("source.cs", 79, 24));
            Console.WriteLine(" Stack trace with dummy stack frame: {0}",
                           st.ToString());

            // Access the StackFrames explicitly to display the file
            // name, line number and column number properties.
            // StackTrace.ToString only includes the method name.
            for(int i =0; i< st.FrameCount; i++ )
            {
               StackFrame sf = st.GetFrame(i);
               Console.WriteLine(" File: {0}", sf.GetFileName());
               Console.WriteLine(" Line Number: {0}",
                  sf.GetFileLineNumber());
               Console.WriteLine(" Column Number: {0}",
                  sf.GetFileColumnNumber());
            }
            Console.WriteLine();
            Console.WriteLine("   ... throwing exception to next level ...");
            Console.WriteLine("-------------------------------------------------\n");
            throw e;
         }
      }
   }

   public class ClassLevel5
   {
      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 class ClassLevel6
   {
      public void Level6Method()
      {
         throw new Exception("An error occurred in the lowest internal class method.");
      }
   }
}
Imports System.Diagnostics

Imports SampleInternal

Namespace SamplePublic
   
   ' This console application illustrates various uses
   ' of the StackTrace and StackFrame classes.
   
   Class ConsoleApp
      
      <STAThread()>  _
      Shared Sub Main()
         Dim mainClass As New ClassLevel1
         
         Try
            mainClass.InternalMethod()
         Catch
            Console.WriteLine(" Main method exception handler")
            
            ' Display file and line information, if available.
            Dim st As New StackTrace(New StackFrame(True))
            Console.WriteLine(" Stack trace for current level: {0}", _
               st.ToString())
            Console.WriteLine(" File: {0}", _
               st.GetFrame(0).GetFileName())
            Console.WriteLine(" Line Number: {0}", _
               st.GetFrame(0).GetFileLineNumber().ToString())
            
            Console.WriteLine()
            Console.WriteLine("-------------------------------------------------")
            Console.WriteLine()
         End Try
      End Sub
   End Class
End Namespace 'StackFramePublic 

Namespace SampleInternal
   
   Public Class ClassLevel1
      
      Public Sub InternalMethod()
         Try
            Dim nestedClass As New ClassLevel2
            nestedClass.Level2Method()
         Catch e As Exception
            Console.WriteLine(" InternalMethod exception handler")
            
            ' Build a stack trace from one frame, skipping the 
            ' current frame and using the next frame.  By default,
            ' file and line information are not displayed.
            Dim st As New StackTrace(New StackFrame(1))
            Console.WriteLine(" Stack trace for next level frame: {0}", _
               st.ToString())
            Console.WriteLine(" Stack frame for next level: ")
            Console.WriteLine("   {0}", st.GetFrame(0).ToString())
            
            Console.WriteLine(" Line Number: {0}", _
               st.GetFrame(0).GetFileLineNumber().ToString())
            
            Console.WriteLine()
            Console.WriteLine("   ... throwing exception to next level ...")
            Console.WriteLine("-------------------------------------------------")
            Console.WriteLine()
            Throw e
         End Try
      End Sub
   End Class
   
   Public Class ClassLevel2
      
      Public Sub Level2Method()
         Try
            Dim nestedClass As New ClassLevel3
            nestedClass.Level3Method()
         
         Catch e As Exception
            Console.WriteLine(" Level2Method exception handler")
            
            ' Display the full call stack at this level.
            Dim st1 As New StackTrace(True)
            Console.WriteLine(" Stack trace for this level: {0}", _
               st1.ToString())
            
            ' Build a stack trace from one frame, skipping the current
            ' frame and using the next frame.
            Dim st2 As New StackTrace(New StackFrame(1, True))
            Console.WriteLine(" Stack trace built with next level frame: {0}", _
                st2.ToString())
            
            ' Build a stack trace skipping the current frame, and
            ' including all the other frames.
            Dim st3 As New StackTrace(1, True)
            Console.WriteLine(" Stack trace built from the next level up: {0}", _
                st3.ToString())
            
            Console.WriteLine()
            Console.WriteLine("   ... throwing exception to next level ...")
            Console.WriteLine("-------------------------------------------------")
            Console.WriteLine()
            Throw e
         End Try
      End Sub
   End Class
   
   Public Class ClassLevel3
      
      Public Sub Level3Method()
         Try
            Dim nestedClass As New ClassLevel4()
            nestedClass.Level4Method()
         Catch e As Exception
            Console.WriteLine(" Level3Method exception handler")
            
            ' Build a stack trace from a dummy stack frame.
            ' Explicitly specify the source file name and line number.
            Dim st As New StackTrace(New StackFrame("source.cs", 60))
            Console.WriteLine(" Stack trace with dummy stack frame: {0}", _
               st.ToString())
            Dim i As Integer
            For i = 0 To st.FrameCount - 1
               ' Display the stack frame properties.
               Dim sf As StackFrame = st.GetFrame(i)
               Console.WriteLine(" File: {0}", sf.GetFileName())
               Console.WriteLine(" Line Number: {0}", _
                  sf.GetFileLineNumber())
               ' The column number defaults to zero when not initialized.
               Console.WriteLine(" Column Number: {0}", _
                  sf.GetFileColumnNumber())
               If sf.GetILOffset <> StackFrame.OFFSET_UNKNOWN
                  Console.WriteLine(" Intermediate Language Offset: {0}", _
                      sf.GetILOffset())
               End If
               If sf.GetNativeOffset <> StackFrame.OFFSET_UNKNOWN
                 Console.WriteLine(" Native Offset: {0}", _
                     sf.GetNativeOffset())
               End If
            Next i 
            Console.WriteLine()
            Console.WriteLine("   ... throwing exception to next level ...")
            Console.WriteLine("-------------------------------------------------")
            Console.WriteLine()
            Throw e
         End Try
      End Sub
   End Class
   
   Public Class ClassLevel4
      
      Public Sub Level4Method()
         Try
            Dim [nestedClass] As New ClassLevel5()
            [nestedClass].Level5Method()
         Catch e As Exception
            Console.WriteLine(" Level4Method exception handler")
            
            ' Build a stack trace from a dummy stack frame.
            ' Explicitly specify the source file name, line number
            ' and column number.
            Dim st As New StackTrace(New StackFrame("source.cs", 79, 24))
            Console.WriteLine(" Stack trace with dummy stack frame: {0}", _
               st.ToString())
            
            ' Access the StackFrames explicitly to display the file
            ' name, line number and column number properties.
            ' StackTrace.ToString only includes the method name. 
            Dim i As Integer
            For i = 0 To st.FrameCount - 1
               Dim sf As StackFrame = st.GetFrame(i)
               Console.WriteLine(" File: {0}", sf.GetFileName())
               Console.WriteLine(" Line Number: {0}", _
                  sf.GetFileLineNumber())
               Console.WriteLine(" Column Number: {0}", _
                  sf.GetFileColumnNumber())
            Next i
            Console.WriteLine()
            Console.WriteLine("   ... throwing exception to next level ...")
            Console.WriteLine("-------------------------------------------------")
            Console.WriteLine()
            Throw e
         End Try
      End Sub
   End Class
  
   
   Public Class ClassLevel5
      
      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
   End Class
  
   
   Public Class ClassLevel6
      Public Sub Level6Method()
         Throw New Exception("An error occurred in the lowest internal class method.")
      End Sub
   End Class

End Namespace 'StackFrameInternal

Commenti

Viene StackFrame creato e eseguito il push nello stack di chiamate per ogni chiamata di funzione effettuata durante l'esecuzione di un thread. Il frame dello stack include sempre informazioni e, facoltativamente, include MethodBase informazioni sul nome del file, sul numero di riga e sul numero di colonna.

StackFrame le informazioni saranno più informative con le configurazioni di compilazione debug. Per impostazione predefinita, le compilazioni di debug includono simboli di debug, mentre le build di versione non vengono eseguite. I simboli di debug contengono la maggior parte del file, il nome del metodo, il numero di riga e le informazioni sulla colonna usate per costruire StackFrame oggetti.

Costruttori

StackFrame()

Inizializza una nuova istanza della classe StackFrame.

StackFrame(Boolean)

Inizializza una nuova istanza della classe StackFrame acquisendo eventualmente informazioni sull'origine.

StackFrame(Int32)

Inizializza una nuova istanza della classe StackFrame che corrisponde a un frame sopra lo stack frame corrente.

StackFrame(Int32, Boolean)

Inizializza una nuova istanza della classe StackFrame che corrisponde a un frame sopra lo stack frame corrente, acquisendo facoltativamente informazioni sull'origine.

StackFrame(String, Int32)

Inizializza una nuova istanza della classe StackFrame che contiene solo il nome file e il numero di riga indicati.

StackFrame(String, Int32, Int32)

Inizializza una nuova istanza della classe StackFrame che contiene solo il nome file, il numero di riga e il numero di colonna indicati.

Campi

OFFSET_UNKNOWN

Definisce il valore restituito dal metodo GetNativeOffset() o dal metodo GetILOffset() quando l'offset nativo o MSIL (Microsoft Intermediate Language) è sconosciuto. Questo campo è costante.

Metodi

Equals(Object)

Determina se l'oggetto specificato è uguale all'oggetto corrente.

(Ereditato da Object)
GetFileColumnNumber()

Ottiene il numero della colonna nel file che contiene il codice in esecuzione. Le informazioni vengono generalmente estratte dai simboli di debug relativi al file eseguibile.

GetFileLineNumber()

Ottiene il numero della riga nel file che contiene il codice in esecuzione. Le informazioni vengono generalmente estratte dai simboli di debug relativi al file eseguibile.

GetFileName()

Ottiene il nome del file che contiene il codice in esecuzione. Le informazioni vengono generalmente estratte dai simboli di debug relativi al file eseguibile.

GetHashCode()

Funge da funzione hash predefinita.

(Ereditato da Object)
GetILOffset()

Ottiene l'offset dall'inizio del codice MSIL (Microsoft Intermediate Language) per il metodo in esecuzione. Tale offset può essere approssimativo, in base al fatto che il compilatore JIT stia generando o meno un codice di debug. La generazione di queste informazioni di debug è controllata dall'elemento DebuggableAttribute.

GetMethod()

Ottiene il metodo in cui è in esecuzione il frame.

GetNativeOffset()

Ottiene l'offset dall'inizio del codice nativo compilato in modalità JIT (>Just-in-Time) per il metodo che è in esecuzione. La generazione di queste informazioni di debug è controllata dalla classe DebuggableAttribute.

GetType()

Ottiene l'oggetto Type dell'istanza corrente.

(Ereditato da Object)
MemberwiseClone()

Crea una copia superficiale dell'oggetto Object corrente.

(Ereditato da Object)
ToString()

Compila una rappresentazione leggibile dell'analisi dello stack.

Metodi di estensione

GetNativeImageBase(StackFrame)

Restituisce un puntatore all'indirizzo di base dell'immagine nativa in esecuzione in questo stack frame.

GetNativeIP(StackFrame)

Ottiene un puntatore di interfaccia per l'inizio del codice nativo per il metodo in esecuzione.

HasILOffset(StackFrame)

Indica se è disponibile un offset dall'inizio del codice IL per il metodo in esecuzione.

HasMethod(StackFrame)

Indica se sono disponibili informazioni sul metodo in cui è in esecuzione il frame specificato.

HasNativeImage(StackFrame)

Indica se l'immagine nativa è disponibile per lo stack frame specificato.

HasSource(StackFrame)

Indica se il file che contiene il codice che è in esecuzione nello stack frame specificato è disponibile.

Si applica a

Vedi anche