StackTrace Classe

Definição

public ref class StackTrace sealed

public ref class StackTrace

public sealed class StackTrace

public class StackTrace

[System.Serializable]
public class StackTrace

[System.Serializable]
[System.Runtime.InteropServices.ComVisible(true)]
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

Herança

Object

StackTrace

Atributos

SerializableAttribute ComVisibleAttribute

Exemplos

O aplicativo de console a seguir demonstra como criar um simples StackTrace e iterar por meio de seus quadros para obter informações de depuração e diagnóstico.

#using <System.dll>

using namespace System;
using namespace System::Diagnostics;
ref class StackTraceSample
{
private:
   ref class MyInternalClass
   {
   public:
      void ThrowsException()
      {
         try
         {
            throw gcnew Exception( "A problem was encountered." );
         }
         catch ( Exception^ e ) 
         {
            
            // Create a StackTrace that captures
            // filename, line number, and column
            // information for the current thread.
            StackTrace^ st = gcnew StackTrace( true );
            String^ stackIndent = "";
            for ( int i = 0; i < st->FrameCount; i++ )
            {
               
               // Note that at this level, there are five
               // stack frames, one for each method invocation.
               StackFrame^ sf = st->GetFrame( i );
               Console::WriteLine();
               Console::WriteLine( "{0}Method: {1}", stackIndent, sf->GetMethod() );
               Console::WriteLine( "{0}File: {1}", stackIndent, sf->GetFileName() );
               Console::WriteLine( "{0}Line Number: {1}", stackIndent, sf->GetFileLineNumber().ToString() );
               stackIndent = String::Concat( stackIndent, "  " );

            }
            throw e;
         }

      }

   };


protected:
   void MyProtectedMethod()
   {
      MyInternalClass^ mic = gcnew MyInternalClass;
      mic->ThrowsException();
   }


public:
   void MyPublicMethod()
   {
      MyProtectedMethod();
   }

};

int main()
{
   StackTraceSample^ sample = gcnew StackTraceSample;
   try
   {
      sample->MyPublicMethod();
   }
   catch ( Exception^ ) 
   {
      
      // Create a StackTrace that captures
      // filename, line number, and column
      // information for the current thread.
      StackTrace^ st = gcnew StackTrace( true );
      for ( int i = 0; i < st->FrameCount; i++ )
      {
         
         // For an executable built from C++, there
         // are two stack frames here: one for main,
         // and one for the _mainCRTStartup stub. 
         StackFrame^ sf = st->GetFrame( i );
         Console::WriteLine();
         Console::WriteLine( "High up the call stack, Method: {0}", sf->GetMethod()->ToString() );
         Console::WriteLine( "High up the call stack, Line Number: {0}", sf->GetFileLineNumber().ToString() );

      }
   }

}

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

  Method: Void ThrowsException()
  File: c:\samples\stacktraceframe\myclass.cpp
  Line Number: 20

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

      Method: Void MyPublicMethod()
      File: c:\samples\stacktraceframe\myclass.cpp
      Line Number: 50
 
        Method: Int32 main()
        File: c:\samples\stacktraceframe\myclass.cpp
        Line Number: 56

          Method: UInt32 _mainCRTStartup()
          File:
          Line Number: 0

  High up the call stack, Method: Int32 main()
  High up the call stack, Line Number: 62

  High up the call stack, Method: UInt32 _mainCRTStartup()
  High up the call stack, Line Number: 0

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

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

    Method: Int32 main()
    File:
    Line Number: 0

      Method: UInt32 _mainCRTStartup()
      File:
      Line Number: 0

  High up the call stack, Method: Int32 main()
  High up the call stack, Line Number: 0

  High up the call stack, Method: UInt32 _mainCRTStartup()
  High up the call stack, Line Number: 0

*/

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
'

Comentários

StackTrace as informações serão mais informativas com as configurações de build de depuração. Por padrão, os builds de depuração incluem símbolos de depuração, enquanto os builds de versão não. Os símbolos de depuração contêm a maioria das informações de arquivo, nome do método, número de linha e coluna usadas na construção StackFrame de objetos e StackTrace .

StackTrace pode não relatar quantas chamadas de método forem esperadas, devido a transformações de código que ocorrem durante a otimização.

Construtores

Campos

Propriedades

Métodos

Aplica-se a

Confira também

• StackTrace
• StackTrace
• StackTrace