How to create Extension Methods in C#

In this post I will show you how to create Extension Methods for Date Format (dd-MM-yyyy).
In the previous posts I had shown How to...

DataTables in MVC:

• Code First Migrations in MVC 5
• Jquery DataTable in MVC
• Jquery DataTable multisearch paging and Sorting in MVC server side
• Jquery DataTable paging, Sorting and Multi search with datepicker in MVC server side
• Cascading DropDowns in Asp.Net MVC
• AngularJS with Web Api in Asp.net MVC using Token based Authentication
• Ajax helper Based Search in MVC

AngularJS:

• Two way Binding in AngularJS
• Simple Routing in AngularJS
• Datatables in AngularJS and asp.net mvc
• Datatables Column Filter with AngularJS and asp.net mvc
• Datatable Exporting with AngularJS and asp.net mvc

OutPut: 

To create Extension Methods for Date, Add a class with Name ExtensionHelper

and add the script as shown in the image