How to find the Method Name of the calling method from a method at runtime ?

Question

For example:

Class A
{
  M1()
  {
    B.M2();
  }
}

class B
{
  public static M2()
  {
    // I need some code here to find out the name of the method that called this method,   preferably the name of the declared type of the calling method also.
  }
}

Answer 1

You can try:

using System.Diagnostics;

StackTrace stackTrace = new StackTrace();
Console.WriteLine(stackTrace.GetFrame(1).GetMethod().Name);

Answer 2

Hi,

I think you are looking for:

using System.Diagnostics;

StackTrace stackTrace = new StackTrace();
stackTrace.GetFrame(1).GetMethod().Name;

Answer 3

You can do this by displaying the call stack. This will find the entire call stack, not just the calling method though.

void displaycallstack() {
 byte[] b;
 StackFrame sf;
 MemoryStream ms = new MemoryStream();
 String s = Process.GetCurrentProcess().ProcessName;
 Console.Out.WriteLine(s + " Call Stack");
 StackTrace st = new StackTrace();
 for(int a = 0;a < st.FrameCount;a++) {
  sf = st.GetFrame(a);
  s = sf.ToString();
  b = Encoding.ASCII.GetBytes(s);
  ms.Write(b,0,b.Length); 
 }
 ms.WriteTo(System.Console.OpenStandardOutput()); }

Answer 4

Check the System.Diagnostics.Trace class, but as far as I know - there is performance price when using it

Answer 5

Thanks for the response guys, just one more thing, any idea how much of a performance hit would be incurred, any numbers? thanks in adv.

Answer 6

Better not to use StackFrame, becouse there are some .NET security issues - if code not fully trusted expression "new StackFrame()" will throw security exception.

To get current method use MethodBase.GetCurrentMethod().Name

About getting calling method see: Getting calling method owner