User selection of no of records per page in MVC4

Question

Hi, 

 

I have implemented pagination in my MVC application.As of now I am setting 50 records per page.Now my requirement is user should select whatever he will select from the dropdown wher I will show like 10,20,30,40,50,100 in dropdown.When user selects the specific value I have to show the no of records in the page.So how can I achieve this by passing the dropdown selected value to the controller.Please help me on this.cted value to the controller.Please help me on this.