c# - 获取异常中的源文件、方法和行

Question

我正在尝试从我的 c# (4.0) asp.net Web 应用程序中发生的异常中获取详细信息。我在 bin 文件夹中有 .pdb 文件。以下代码未按预期工作 -

protected void Button1_Click(object sender, EventArgs e)
{
    try
    {
        //throwing Exception
        using (SqlConnection connection=new SqlConnection(""))
        {
            connection.Open();
        }
    }
    catch (Exception exception)
    {
        //Get a StackTrace object for the exception
        StackTrace st = new StackTrace(exception, true);

        //Get the first stack frame
        StackFrame frame = st.GetFrame(0); //returns {PermissionDemand at offset 5316022 in file:line:column <filename unknown>:0:0}

        //Get the file name
        string fileName = frame.GetFileName(); //returns null

        //Get the method name
        string methodName = frame.GetMethod().Name; //returns PermissionDemand

        //Get the line number from the stack frame
        int line = frame.GetFileLineNumber(); //returns 0

        //Get the column number
        int col = frame.GetFileColumnNumber(); //returns 0              
    }
}

这里有什么问题？

更新：“StackFrame frame = st.GetFrame(st.FrameCount - 1);”解决了这个问题。

Answer 1

//Remove this line
StackFrame frame = st.GetFrame(0);

//Add this line
StackFrame frame = st.GetFrame(st.FrameCount - 1);