reflection - Call methods using names in C#

Question

I have a number of 'jobs' in my application, where each job has a list of methods which it needs to call, along with it's parameters. Essentially a list containing the following object is called:

string Name;
List<object> Parameters;

So basically, when a job runs I want to enumerate through this list, and call the relevant methods. For example, if I have a method like the following:

TestMethod(string param1, int param2)

My method object would be like this:

Name = TestMethod
Parameters = "astring", 3

Is it possible to do this? I imagine reflection will be the key here.

Answer 1

Sure, you can do it like this:

public class Test
{
    public void Hello(string s) { Console.WriteLine("hello " + s); }
}

...

{
     Test t = new Test();
     typeof(Test).GetMethod("Hello").Invoke(t, new[] { "world" }); 

     // alternative if you don't know the type of the object:
     t.GetType().GetMethod("Hello").Invoke(t, new[] { "world" }); 
}

The second parameter of Invoke() is an array of Object containing all the parameters to pass to your method.

Assuming the methods all belong to the same class, you could have a method of that class something like:

public void InvokeMethod(string methodName, List<object> args)
{
    GetType().GetMethod(methodName).Invoke(this, args.ToArray());
}