How to pass local variable from Jquery function to ASP.NET MVC controller?

You should perform either synchronous request (form submit with mode variable set) or AJAX POST request, depends on your application design

Have you thought about creating a hidden field on the page and then updating its value from jQuery? You can then just read in this value as an additional POST field when the page is submitted to the server.

because mode is declared inside the anonymous function, it cannot be access outside of it. you can create a callback that uses the mode variable, or make it more global so you can access it outside the function.

You can do something like (or any other ajax method you want to call there); $.post('yourController/ExportToExcel/'+mode,.../the rest of the params/);

in your anonymous function to make it like;

$(':radio').click(function() { var mode = this.value; $.post('yourController/ExportToExcel/'+mode,.../the rest of the params/); });