public static void RunDemo()
{
//Anonymous functions in C#
SimplePrintDel spd = delegate()
{
Console.WriteLine("Simple print without param");
};
spd.Invoke();
//Lamda expression in C#
SimplePrintDel nd = () =>
{
Console.WriteLine("Simple print without param Lamda");
};
nd.Invoke();
//=================With C# provided delegate methods=====
action = delegate()
{
Console.WriteLine("Using Action Delegate");
};
action.Invoke();
action = () =>
{
Console.WriteLine("Using Action Lamda");
};
action.Invoke();
//=================================
var msg = "Message with anonymous method and action param";
actionWithParam = (x) => {
Console.WriteLine(x);
};
actionWithParam.Invoke(msg);
SimpleRetunDel rd = delegate() { return(39); };
Console.WriteLine("Value : " + rd.Invoke());
rd = () => { return(290); };
Console.WriteLine("Value : " + rd.Invoke());
SimpleRetunDel2 srd = delegate(int a, int b)
{
return(a * b);
};
Console.WriteLine("Value : " + srd.Invoke(10, 30));
srd = (a, b) => a * b;
Console.WriteLine("Value : " + srd.Invoke(10, 30));
Console.ReadKey();
}
public static void RunDemo()
{
//Executing a Print function using delegate
SimplePrintDel spd = Print;
spd.Invoke();
//Executing a parameteric function using delegate
PrintDelegate pd = Print;
string msg = "This is another way of calling parametric delegate";
pd.Invoke(msg);
//Executing a complex parametric function using delegate
PrintGrades pgd = ShowGrades;
pgd.Invoke(StudentGrades.Intermdiate);
pgd.Invoke(StudentGrades.Advanced);
pgd.Invoke(StudentGrades.Standard);
//Multicasting Delegates
pd += Print2;
pd += Print3;
pd.Invoke("Multi-Casting....");
//C# delegates
ActionDel = Print;
ActionDel2 = Print;
ActionDel();
ActionDel2("Action Del 2");
//Retrun value delegate
SumDel sum = Sum;
var rv = sum.Invoke(10, 400);
Console.WriteLine("Value : " + rv);
FuncDel = Sum;
rv = FuncDel.Invoke(103, 500);
Console.WriteLine("Value : " + rv);
Console.ReadKey();
}