Use Of Multicast Delegates

Multicast Delegates (Multicasting)

Multicast Deletages

     string temp = "";

    int i, j;

    for(j=0, i= sTestString.Length-1; i >= 0; i--, j++)

      temp += sTestString[i];

    sTestString = temp;

    Console.WriteLine("Reversed string.");

  }

  static void Main()

  {

    // Construct delegates

    ModifyString oModifyString;

    ModifyString oModifyStringReplaceSpaces = ReplaceSpaces;

  // Method Group Conversion

    ModifyString oModifyStringRemoveSpaces = RemoveSpaces; 

 // Method Group Conversion

    ModifyString oModifyStringReverseString = Reverse; 

 // Method Group Conversion

    string sString = "This is a test for Multicast Delegates";

   

    // Set up multicast

    oModifyString = oModifyStringReplaceSpaces;

    oModifyString += oModifyStringReverseString;

   

    // Call multicast

    oModifyString(ref sString);

    Console.WriteLine("Resulting string: " + sString);

    Console.WriteLine();

   

    // Remove replace and add remove

    oModifyString -= oModifyStringReplaceSpaces;

    oModifyString += oModifyStringRemoveSpaces;

    sString = "This is a test."; // reset string

   

    // Call multicast

    oModifyString(ref sString);

    Console.WriteLine("Resulting string: " + sString);

    Console.WriteLine();

  }

}

Why are delegates used?

All delegates are classes that are implicitly derived from System.Delegate. In general, delegates are useful for two main reasons:

1. Delegates support events.

2. Delegates give your program a way to execute methods at runtime without having to know precisely what those methods are at compile time. This ability is quite useful when you want to create a framework that allows components to be plugged in

Definition, what is Multicast Deletages (Multicasting), real world scenarios and live code example of Multicast Deletages (Multicasting), use of Multicast Deletages (Multicasting)