what is ops parameter in c#.net n why we use?

Question

hi frnds what is ops parameter in c#.net n why we use? pl share with example which can explain in intervws?

Sandeep Neela · Answer

Hi Anjali, An optional parameter has default values. The user can pass the value while calling method or If the user doesn't provide any value while calling then it's default value will be used instead in the method in the method body. Optional parameters must be specified after all the required parameters are specified. For demo please see this https://dotnetfiddle.net/K01P5q Thanks, Sandeep

Chandu Kumawat · Answer

also refer this article http://www.c-sharpcorner.com/UploadFile/dhananjaycoder/optional-argument-in-C-Sharp-4-0/

Chandu Kumawat · Answer

Optional Parameters. An optional parameter has a default value. A method with an optional parameter can be called with only some of its parameters specified. Example. In this example, we introduce a method named "Method" that has two parameters. Each of the parameters is optional. To specify an optional parameter, assign the formal parameter in the method parameter list to an appropriate value. Here, we set the formal parameter 'value' to 1, and the formal parameter 'name' to "Perl". Whenever Method is called without a parameter specified, its default value is used instead in the method body. C# program that uses optional parameters using System; class Program { static void Main() { // Omit the optional parameters. Method(); // Omit second optional parameter. Method(4); // You can't omit the first but keep the second. // Method("Dot"); // Classic calling syntax. Method(4, "Dot"); // Specify one named parameter. Method(name: "Sam"); // Specify both named parameters. Method(value: 5, name: "Allen"); } static void Method( int value = 1 , string name = "Perl" ) { Console.WriteLine("value = {0}, name = {1}", value, name); } } Output value = 1, name = Perl value = 4, name = Perl value = 4, name = Dot value = 1, name = Sam value = 5, name = Allen

Amit Kumar Singh · Answer

http://www.dotnetperls.com/optional-parameters