StackTrace.GetFrame(Int32) 方法
重要
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获取指定的堆栈帧。
public:
virtual System::Diagnostics::StackFrame ^ GetFrame(int index);C#
public virtual System.Diagnostics.StackFrame? GetFrame (int index);C#
public virtual System.Diagnostics.StackFrame GetFrame (int index);abstract member GetFrame : int -> System.Diagnostics.StackFrame
override this.GetFrame : int -> System.Diagnostics.StackFramePublic Overridable Function GetFrame (index As Integer) As StackFrame- index
- Int32
所请求的堆栈帧的索引。
指定的堆栈帧。
下面的代码示例显示堆栈跟踪中的第一个和最后一个函数调用。
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;
}
}
C#
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
堆栈帧从 0 开始编号，这是推送的最后一个堆栈帧。
| 产品 | 版本 |
|---|---|
| .NET | Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8, 9 |
| .NET Framework | 1.1, 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1 |
| .NET Standard | 2.0, 2.1 |
