// A callback is a function that will be called when a process is done executing
// a specific task
public static void Run()
{
// To create a callback, a function address needs to be stored in a variable
WorkCompletedCallBack callBack = TestCallBack;
DoWork(callBack);
DoMoreWork(Console.WriteLine);
// Delegates (see below)
// ------------------------------------------------------
Foo fooExample = Bar;
var time = fooExample(DateTime.UtcNow);
Console.WriteLine(time);
// Action delegate (see below)
// ------------------------------------------------------
// Named method
NamedActionDelegate = NamedMethod;
NamedActionDelegate?.Invoke("Named Action Delegate", 5);
// Anonymous function
AnonymousActionDelegate?.Invoke("Anonymous Action Delegate", 106);
// Func delegate (see below)
// ------------------------------------------------------
NamedFuncDelegate = NamedMethod;
var namedResult = NamedFuncDelegate?.Invoke(100);
Console.WriteLine(namedResult);
}
public static void Run()
{
NamedFuncDelegate = (m, n) => "Go";
var result = GetFuncStringValue(1, 2);
Console.WriteLine(result);
NamedFuncDelegate = NamedMethod;
var addition = NamedFuncDelegate?.Invoke(5, 9);
Console.WriteLine(addition);
Console.WriteLine(AnonymousFuncDelegate?.Invoke(10, 12));
}
public static string GetFuncStringValue(int a, int b)
{
return(NamedFuncDelegate?.Invoke(a, b));
}