人生是一场不能存盘的RPG,我只能尽量多搞几个Screenshot

需要引入以下的namespace
using System.Diagnostics; //For StackTrace
using System.Reflection;  //MethodInfo

Step1. Create a StackTrace
    StackTrace stackTrace = new StackTrace();
    大多时情况下,我们希望在exception 发生时找到引发exceptioin的代码,
    此时需要使用
    try
    {
        …
    }
    catch(Exception exp)
    {
        StackTrace stackTrace = new StackTrace(exp);
    }
    此时通过stackTrace.ToString() 已经可以得到大致的callstack信息.

step2. 通过StatckFrame得到代码信息

    int frameCount = stackTrace.FrameCount;   
    for (int i = 0; i < frameCount; i++)
    {
        StackFrame stackFrame = stackTrace.GetFrame(i);

        // Display the stack frame properties.
        Console.WriteLine(" File: {0}", stackFrame.GetFileName());
        Console.WriteLine(" Line Number: {0}", stackFrame.GetFileLineNumber());
        Console.WriteLine(" Column Number: {0}", sf.GetFileColumnNumber());
        //还有很多其他的功能GetILOffset(),GetNativeOffset()…
    }

step3. 通过MethodInfo得到每一个函数的信息,用到的主要是Reflection的技巧
    int frameCount = stackTrace.FrameCount;   
    for (int i = 0; i < frameCount; i++)
    {
        StackFrame stackFrame = stackTrace.GetFrame(i);
        MethodInfo methodInfo = (MethodInfo)stackFrame.GetMethod();
       
        //1 get Access
        string access = string.Empty;
        if (methodInfo.IsPrivate)
            access = "private ";
        else if (methodInfo.IsPublic)
            access = "public ";
        else if (methodInfo.IsFamily)
            access = "protected ";
        else if (methodInfo.IsAssembly)
            access = "Internal ";
       
        if (methodInfo.IsStatic)
            access += "static ";
       
        //2 method nanme
        string methodName = methodInfo.Name;
       
        //3 parameter info
        ParameterInfo[] pInfos = methodInfo.GetParameters();
        string paramterList = string.Empty;
        for (int j = 0; j < pInfos.Length; j++)
        {
            paramterList += string.Format(", {0} {1}", pInfos[j].ParameterType.Name, pInfos[j].Name);
        }
       
        // Get rid of the first ", " if it exists.
        if (paramterList.Length > 2)
            paramterList = paramterList.Substring(2);
       
        string output = access + methodInfo.ReturnType.Name + " "+ methodName + "(" + paramterList + ")";
        Console.WriteLine(output);
       
    }