public static void Main()
{
///<summary>
///0. multicast delegates are delegates that has references to more than one function. When you invoke that one delegate, all of functions will
///be invoked
///</summary>
//sampleDelegate del = new sampleDelegate(sampleMethod1); //1. in the parenthesis we put the function that we want the delegate to point to
//del();
//sampleDelegate del1, del2, del3, del4;
//del1 = new sampleDelegate(sampleMethod1);
//del2 = new sampleDelegate(sampleMethod2);
//del3 = new sampleDelegate(sampleMethod3);
//del4 = del1 + del2 + del3; //2. del4 now points to all 3 other delegates so when del4 is invoked, del1, del2, del3 are all invoked at once
//del4(); //to multicast delegates, just use the plus sign
sampleDelegate del = new sampleDelegate(sampleMethod1);
del += sampleMethod2; //3. we are using the single instance to call other methods
del += sampleMethod3;
del();
sampleDelegateNumb delNumb = new sampleDelegateNumb(sampleMethodNumb1); //4. if the return type of delegate is anything other than void and
//is a multicast delegate only the last invoked method will return
delNumb += sampleMethodNumb2;
int retrunDelNumb = delNumb();
Console.WriteLine(retrunDelNumb);
}
static void Main(string[] args)
{
//// mulitcast delegates
//sampleDelegate del1, del2, del3, del4;
//del1 = new sampleDelegate(sampleMethodOne);
//del2 = new sampleDelegate(sampleMethodTwo);
//del3 = new sampleDelegate(sampleMethodThree);
//// multicast delegate
//del4 = del1 + del2 + del3;
//del4();
sampleDelegate del = new sampleDelegate(sampleMethodOne); // register sampleMethodOne to delegate
del += sampleMethodTwo; // register sampleMethodTwo to delegate
del += sampleMethodThree; // register sampleMethodThree to delegate
del -= sampleMethodThree; // un-register sampleMethodThree to delegate
del();
sampleDelegateINT delINT = new sampleDelegateINT(sampleMethodOneINT);
delINT += sampleMethodTwoINT;
Console.WriteLine("Returned Value {0}", delINT());
sampleDelegateOUT delOUT = new sampleDelegateOUT(sampleMethod1);
delOUT += sampleMethod2;
int param;
delOUT(out param);
Console.WriteLine("Output Parameter Value : {0}", param);
Console.ReadLine();
}
public static void Main( )
{
testDelegate obj = new testDelegate();
sampleDelegate delegateObj = new sampleDelegate(obj.checkEven);
delegateObj += new sampleDelegate(obj.squareNumber);
delegateObj(25);
}
public static void Main(string[] args)
{
sampleDelegate mydelegate=delegate(int num){
Console.WriteLine("this is an anonymous delegate method {0}",num);
};
mydelegate(99);
mydelegate = new sampleDelegate (Method1);
mydelegate(65);
}
public static void Main(string[] args)
{
sampleDelegate mydelegate = delegate(int num){
Console.WriteLine("this is an anonymous delegate method {0}", num);
};
mydelegate(99);
mydelegate = new sampleDelegate(Method1);
mydelegate(65);
}
static void Main(string[] args)
{
int[] array = { 10, 12, 13, 14, 15 };
List <int> a = new List <int>()
{
10, 20, 30, 40, 54, 23
};
var i = a.FindAll(x => (x % 2) == 0);
foreach (var j in i)
{
Console.WriteLine(j);
}
sampleDelegate sample = (message) =>
{
Console.WriteLine("Hello " + message);
};
sample.Invoke("Madhu");
}
static void Main(string[] args)
{
sampleDelegate del1, del2, del3, del4;
del1 = new sampleDelegate(sampleMethod1);
del2 = new sampleDelegate(sampleMethod2);
del3 = new sampleDelegate(sampleMethod3);
//multicast delegate.. point more than one function.
// we can add and also subtract the delegate.
//! method to create multicast D
del4 = del1 + del2 + del3;
del4();
// 2 method for multi D
sampleDelegate del = new sampleDelegate(sampleMethod1);
del += sampleMethod2;
del += sampleMethod3;
del();
Console.WriteLine("\n\n");
// int return value it always return last invoked method val;
SampleReturnDelegtae srd = new SampleReturnDelegtae(sampleReturn1);
srd += sampleReturn2;
int value = srd();
Console.WriteLine(value);
sampleoutDelegate sod = new sampleoutDelegate(sampleoutMethod1);
sod += sampleoutMethod2;
int result = 0;
sod(out result);
Console.WriteLine("value of last invoke method using out parameter in the result varibale is {0}", result);
}