How can I get the name of the calling function in C#?

Question

I need to get the name of the calling function in C#. I read about stackframe method but everywhere its said its not reliable and hurts the performance.

But I need i

Answer 1

You can use the C# 4.5 Attributes mentioned in L.B's answer with .NET 3.5 or above by simply declaring them (you need to compile using vs2012 or higher, else you won't get any error, but the parameter value will stay null!):

namespace System.Runtime.CompilerServices
{
  [AttributeUsageAttribute(AttributeTargets.Parameter, Inherited = false)]
  public sealed class CallerMemberNameAttribute : Attribute
  {
  }

  [AttributeUsageAttribute(AttributeTargets.Parameter, Inherited = false)]
  public sealed class CallerFilePathAttribute : Attribute
  {
  }

  [AttributeUsageAttribute(AttributeTargets.Parameter, Inherited = false)]
  public sealed class CallerLineNumberAttribute : Attribute
  {
  }
}