Assign method to delegate through reflection
I got stuck up while dynamically assigning methods to a delegate instance through reflection. Below is开发者_开发知识库 a sample scenario of the situation i am faced with.
class Program
{
static void Main(string[] args)
{
new DynamicDelegateTest().Test();
}
}
public class DynamicDelegateTest
{
public void Test()
{
//This is what i target to do through reflection
ABC objABC1 = new ABC();
objABC1.Proc = Debugger;
objABC1.Test("Helloz");
//Implementing the same code through reflection
ABC objABC = new ABC();
MethodInfo MIDebugger = GetType().GetMethod("Debugger", BindingFlags.NonPublic | BindingFlags.Instance);
FieldInfo MyProc = objABC.GetType().GetField("Proc", BindingFlags.Public | BindingFlags.Instance);
//This is the point where I got stuck up
MyProc.SetValue(objABC, MIDebugger);
objABC.Test("QWERTY");
}
void Debugger(object Tests)
{
Console.WriteLine(Tests);
}
}
public class ABC
{
public delegate void Delg(object P1);
public Delg Proc;
public void Test(object Tst)
{
if (Proc != null) Proc(Tst);
}
}
Please Help.
You need to use Delegate.CreateDelegate
to get the delegate instance, rather than a method-info. For non-static methods this also includes the target instance. In this case:
object del = Delegate.CreateDelegate(MyProc.FieldType, this, MIDebugger);
MyProc.SetValue(objABC, del);
精彩评论