static void Main(string[] args)
{
SingleDelegate d1 = new SingleDelegate();
// d1.sum(10, 20);
//Console.WriteLine(Delegate1.Program(" " + "Amar"));
//2.instantiating the delegating
SumDelegate sd = new SumDelegate(d1.sum);
sd(100, 200); //passing the required parameter and calling the delegate
sd.Invoke(200, 300);
ProgramDelegate pd = new ProgramDelegate(Program);
Console.WriteLine(pd("Amar"));
Console.WriteLine(pd.Invoke("Ram"));
MulDelegate md = new MulDelegate(d1.Mul); //non-static method call by ref of instance class
Console.WriteLine("Mul:" + md(10, 2));
DivDelegate dv = new DivDelegate(Div);
Console.WriteLine("Div:" + dv(100, 2));
Console.Read();
}
public static void Main()
{
Type[] methodArgs = { typeof(Example), typeof(int) };
DynamicMethod dm = new DynamicMethod(
"",
typeof(int),
methodArgs,
typeof(Example));
ILGenerator il = dm.GetILGenerator();
// Console.WriteLine function in the msil. Can be used as il.EmitCall(OpCodes.Call, writeString, null);
// Type[] writeStringArgs = {typeof(string)};
// MethodInfo writeString = typeof(Console).GetMethod("WriteLine",
// writeStringArgs);
// Local variable declaration
// LocalBuilder a = il.DeclareLocal(typeof(Int32));
// Field declaration
// FieldInfo testInfo = typeof(Example).GetField("test",
// BindingFlags.NonPublic | BindingFlags.Instance);
il.Emit(OpCodes.Ldarg_1);
il.Emit(OpCodes.Ldc_I4, 3);
il.Emit(OpCodes.Mul);
il.Emit(OpCodes.Ret);
ProgramDelegate invoke =
(ProgramDelegate)dm.CreateDelegate(typeof(ProgramDelegate));
// Pass argument 14 to the Ldarg_1 of MSIL function
Console.WriteLine("3 * test = {0}", invoke(14));
}
