Setting generic type at runtime

Question

I have a class

public class A
{
   public static string B(T obj)
   {
       return TransformThisObjectToAString(obj);
   }
}

The

Answer 1

There's absolutely support for this in the framework and the CLR - just not gracefully in C#. You can accomplish what I think you want, though, with the help of a helper method:

public class A
{
    public static string B(T obj)
    {
        return obj.ToString();
    }
}

public class MyClass
{
    public static void DoExample()
    {
        Console.WriteLine(ExecuteB("Hi"));
        Console.WriteLine(ExecuteB(DateTime.Now));
    }

    public static object ExecuteB(object arg)
    {
        Type arg_type = arg.GetType();
        Type class_type = typeof(MyClass);
        MethodInfo mi = class_type.GetMethod("ExecuteBGeneric", BindingFlags.Static | BindingFlags.Public);
        MethodInfo mi2 = mi.MakeGenericMethod(new Type[] { arg_type });
        return mi2.Invoke(null, new object[] { arg });
    }

    public static object ExecuteBGeneric(T arg)
    {
        return A.B(arg);
    }