public static int CallDelegateReturn(int a)
{
status = a;
DelegateReturn d = DelegateReturnTarget;
return(d());
}
static void Main(string[] args)
{
MulticastDemo md = new MulticastDemo();
MathDelegate dadd = new MathDelegate(MulticastDemo.Add);
MathDelegate dsub = new MathDelegate(MulticastDemo.Sub);
MathDelegate dmul = new MathDelegate(md.Mul);
MathDelegate ddiv = new MathDelegate(md.Div);
// chaining all delegate
MathDelegate rootd = dadd + dsub + dmul + ddiv;
rootd = rootd - dsub - dmul - ddiv;
rootd(12, 12);
// earlier path
dsub(12, 10);
dmul.Invoke(10, 10);
// delegate return type
DelegateReturn dr = new DelegateReturn(DelegateReturnDemo.MethodOne);
dr = dr + DelegateReturnDemo.MethodTwo;
int valueReturn = dr();
Console.WriteLine($"Delegate Return for method Two: {DelegateReturnDemo.MethodOne()}");
Console.WriteLine($"Delegate Return for method Two: {DelegateReturnDemo.MethodTwo()}");
// delegate out example
DelegateOut delegateOut = new DelegateOut(DelegateOutDemo.MethodOne);
delegateOut = delegateOut + DelegateOutDemo.MethodTwo;
int returnOut = 0;
delegateOut(out returnOut);
Console.WriteLine($"Delegate OUT for method Two: { returnOut}");
delegateOut -= DelegateOutDemo.MethodTwo;
delegateOut(out returnOut);
Console.WriteLine($"Delegate OUT for method One: { returnOut}");
}