StackTrace Classe

Définition

public ref class StackTrace sealed

public ref class StackTrace

public sealed class StackTrace

[System.Serializable]
public class StackTrace

[System.Serializable]
[System.Runtime.InteropServices.ComVisible(true)]
public class StackTrace

public class StackTrace

type StackTrace = class

[<System.Serializable>]
type StackTrace = class

[<System.Serializable>]
[<System.Runtime.InteropServices.ComVisible(true)>]
type StackTrace = class

Public NotInheritable Class StackTrace

Public Class StackTrace

Héritage

Object

StackTrace

Attributs

SerializableAttribute ComVisibleAttribute

Exemples

L’application console suivante montre comment créer un modèle simple StackTrace et itérer dans ses trames pour obtenir des informations de débogage et de diagnostic.

using System;
using System.Diagnostics;

class StackTraceSample
{
    [STAThread]
    static void Main(string[] args)
    {
        StackTraceSample sample = new StackTraceSample();
        try
        {
            sample.MyPublicMethod();
        }
        catch (Exception)
        {
            // Create a StackTrace that captures
            // filename, line number, and column
            // information for the current thread.
            StackTrace st = new StackTrace(true);
            for(int i =0; i< st.FrameCount; i++ )
            {
                // Note that high up the call stack, there is only
                // one stack frame.
                StackFrame sf = st.GetFrame(i);
                Console.WriteLine();
                Console.WriteLine("High up the call stack, Method: {0}",
                    sf.GetMethod());

                Console.WriteLine("High up the call stack, Line Number: {0}",
                    sf.GetFileLineNumber());
            }
        }
    }

    public void MyPublicMethod ()
    {
        MyProtectedMethod();
    }

    protected void MyProtectedMethod ()
    {
        MyInternalClass mic = new MyInternalClass();
        mic.ThrowsException();
    }

    class MyInternalClass
    {
        public void ThrowsException()
        {
            try
            {
                throw new Exception("A problem was encountered.");
            }
            catch (Exception e)
            {
                // Create a StackTrace that captures filename,
                // line number and column information.
                StackTrace st = new StackTrace(true);
                string stackIndent = "";
                for(int i =0; i< st.FrameCount; i++ )
                {
                    // Note that at this level, there are four
                    // stack frames, one for each method invocation.
                    StackFrame sf = st.GetFrame(i);
                    Console.WriteLine();
                    Console.WriteLine(stackIndent + " Method: {0}",
                        sf.GetMethod() );
                    Console.WriteLine(  stackIndent + " File: {0}",
                        sf.GetFileName());
                    Console.WriteLine(  stackIndent + " Line Number: {0}",
                        sf.GetFileLineNumber());
                    stackIndent += "  ";
                }
                throw e;
            }
        }
    }
}

/*
This console application produces the following output when
compiled with the Debug configuration.

   Method: Void ThrowsException()
   File: c:\samples\stacktraceframe\myclass.cs
   Line Number: 59

     Method: Void MyProtectedMethod()
     File: c:\samples\stacktraceframe\myclass.cs
     Line Number: 45

       Method: Void MyPublicMethod()
       File: c:\samples\stacktraceframe\myclass.cs
       Line Number: 39

         Method: Void Main(System.String[])
         File: c:\samples\stacktraceframe\myclass.cs
         Line Number: 13

  High up the call stack, Method: Void Main(System.String[])
  High up the call stack, Line Number: 20


This console application produces the following output when
compiled with the Release configuration.

   Method: Void ThrowsException()
   File:
   Line Number: 0

     Method: Void Main(System.String[])
     File:
     Line Number: 0

  High up the call stack, Method: Void Main(System.String[])
  High up the call stack, Line Number: 0

*/

Imports System.Diagnostics

Class StackTraceSample
   
    <STAThread()>  _
    Public Shared Sub Main()

        Dim sample As New StackTraceSample()
        Try
   
            sample.MyPublicMethod()
        Catch
            ' Create a StackTrace that captures
            ' filename, line number, and column
            ' information for the current thread.
            Dim st As New StackTrace(True)
            Dim i As Integer

            For i = 0 To st.FrameCount - 1

                ' Note that high up the call stack, there is only
                ' one stack frame.
                Dim sf As StackFrame = st.GetFrame(i)
                Console.WriteLine()
                Console.WriteLine("High up the call stack, Method: {0}", _
                    sf.GetMethod())
            
                Console.WriteLine("High up the call stack, Line Number: {0}", _
                    sf.GetFileLineNumber())
            Next i
        End Try
    End Sub
   
   Public Sub MyPublicMethod()
      MyProtectedMethod()
   End Sub
    
   Protected Sub MyProtectedMethod()
      Dim mic As New MyInternalClass()
      mic.ThrowsException()
   End Sub
   
   
   Class MyInternalClass
      
      Public Sub ThrowsException()
         Try
            Throw New Exception("A problem was encountered.")
         Catch e As Exception

            ' Create a StackTrace that captures filename,
            ' line number and column information.
            Dim st As New StackTrace(True)

            Dim stackIndent As String = ""
            Dim i As Integer
            For i = 0 To st.FrameCount - 1
               ' Note that at this level, there are four
               ' stack frames, one for each method invocation.
               Dim sf As StackFrame = st.GetFrame(i)
               Console.WriteLine()
               Console.WriteLine(stackIndent + " Method: {0}", _
                   sf.GetMethod())
               Console.WriteLine(stackIndent + " File: {0}", _
                   sf.GetFileName())
               Console.WriteLine(stackIndent + " Line Number: {0}", _
                   sf.GetFileLineNumber())
               stackIndent += "  "
            Next i
            Throw e
         End Try
      End Sub
   End Class
End Class


' This console application produces the following output when
' compiled with the Debug configuration.
'   
'    Method: Void ThrowsException()
'    File: c:\pp\samples\stacktraceframe\myclass.vb
'    Line Number: 55
' 
'      Method: Void MyProtectedMethod()
'      File: c:\pp\samples\stacktraceframe\myclass.vb
'      Line Number: 42
' 
'        Method: Void MyPublicMethod()
'        File: c:\pp\samples\stacktraceframe\myclass.vb
'        Line Number: 37
' 
'          Method: Void Main(System.String[])
'          File: c:\pp\samples\stacktraceframe\myclass.vb
'          Line Number: 13
' 
'   High up the call stack, Method: Void Main(System.String[])
'   High up the call stack, Line Number: 18
' 
' 
' This console application produces the following output when
' compiled with the Release configuration.
' 
'    Method: Void ThrowsException()
'    File:
'    Line Number: 0
' 
'      Method: Void Main(System.String[])
'      File:
'      Line Number: 0
' 
'   High up the call stack, Method: Void Main()
'   High up the call stack, Line Number: 0
'

Remarques

StackTrace les informations seront les plus informatives avec les configurations de build Debug. Par défaut, les builds de débogage incluent des symboles de débogage, tandis que les builds Release ne le font pas. Les symboles de débogage contiennent la plupart des informations de fichier, de méthode, de numéro de ligne et de colonne utilisées dans la StackFrame construction et StackTrace les objets.

StackTrace peut ne pas signaler autant d’appels de méthode que prévu, en raison de transformations de code qui se produisent pendant l’optimisation.

Voir aussi

• StackTrace
• StackTrace
• StackTrace