static void Main(string[] args)
{
Console.WriteLine("Program delegate assignment examples.");
int result;
// FIRST and best method.
// Here we can just assign the delegate by pointing it to the method.
TwoIntegerDelegate twoIntAdd = AddTwoIntegers;
// We can call the delegate like a method, but I think this can confuse things a bit.
// Intellisencse shows the following "int twoIntAdd(int firstInteger, int secondInteger)" which is nice and readable.
// However, this does not speak to the specific method that is being called.
result = twoIntAdd(5, 7);
result.PrintToConsole();
// SECOND and least favorite.
// Initialize the delegate by newing up an instance and including the method as a pointer in the constructor.
// I DO NOT like this since the new keyword is misleading by suggesting a delegate is like a class.
TwoIntegerDelegate twoIntMultiply = new TwoIntegerDelegate(MultiplyTwoIntegers);
// We can call Invoke on this delegate. I like this since it is clear that it is a delegate.
result = twoIntMultiply.Invoke(3, 11);
result.PrintToConsole();
// Here we can call a different method that takes the delegate.
bool flag = HandleNumbers(twoIntMultiply, 9, 33);
flag.PrintToConsole();
Console.WriteLine("Program finished. Press any key to exit.");
Console.ReadKey();
}
static bool HandleNumbers(TwoIntegerDelegate inputDelegate, int a, int b)
{
int result;
result = inputDelegate(a, b);
if (result > 5)
{
return(true);
}
return(false);
}
