Cognizant DOT NET Developer Interview Questions and Answers

Button trigger in MVC allows for user interaction and execution of server-side code.

• Buttons can be created using HTML helpers in MVC

• Button click events can be handled using jQuery or JavaScript

• Server-side code can be executed using AJAX calls or form submissions

Delegate is a type that represents references to methods with a specific parameter list and return type.

• Delegates are similar to function pointers in C++.

• Delegates can be used to pass methods as arguments to other methods.

• Delegates can be used to define callback methods.

• Delegates can be chained together using the + or += operator.

• Delegates can be removed from a chain using the - or -= operator.