How to Call method using its name?

Question

I have an object with some methods and I want to call a method using the method name as string only.

object obj;
obj.method();

Answer 1

Given a method MethodName with the signature void MethodName(int num), it would be done something like:

   MethodInfo method = obj.GetType().GetMethod("MethodName", 
         BindingFlags.Public|BindingFlags.Instance)
   method.Invoke(obj, 4) // void method

Hope this helps.

Answer 2

In addition to reflection you may also want to look at dynamic invocation; which is latebound (i.e. at runtime as opposed to compile time) dispatch of method invocations.

Answer 3

object obj;
var dyn = (dynamic) obj;
dyn.method();