private void Btn_DelegateExamples_Click(object sender, EventArgs e)
{
//Instantiate delegate with named Methods
DoOperation op = NamedVoidMethod;
DoOperationWithReturn opReturn = NamedMethodWithStringReturn;
//Invoke Delegate methods
op("Required Par");
var returnedValueFromDelegate = opReturn("Required Par");
Console.WriteLine(returnedValueFromDelegate);
//Instantiate with Anonymus method
op = delegate(string par)
{
Console.WriteLine(par);
};
op("3-You wrote this in anonymus method oh yeahh!!!!");
// Finally ..... Instantiate with lambda Instrucction
// hey hey it's diferent to Lambda expression
opReturn = par =>
{
Console.WriteLine("4-Call Lambda Instruction!!!!");
return("Returned from delegate Method with lambda Instruction }:) ");
};
var returnedValueFromDelegateLambdaInst = opReturn("Execute Lambda String Method!!!!");
Console.WriteLine(returnedValueFromDelegateLambdaInst);
}
private void Btn_LambdaExample_Click(object sender, EventArgs e)
{
const string msg = "Lambda Example ";
DoOperation lambdaVoid = par => Console.WriteLine(par);
DoOperationWithReturn lambdaReturnStringInstruction = par =>
{
return(par);
};
DoOperationWithReturn lambdaReturnStringExpression = par => par;
DoOperationWithReturnAndTwoParameters lambdaReturnStringInstructionTwoParameters = (par1, par2) =>
{
return(par1 + par2);
};
lambdaVoid(msg + 1);
Console.WriteLine(lambdaReturnStringInstruction(msg + 2));
Console.WriteLine(lambdaReturnStringExpression(msg + 3));
Console.WriteLine(lambdaReturnStringInstructionTwoParameters(msg, 4.ToString()));
}
