如何将文本框的值从锚标记传递到asp.net mvc中的控制器方法

I want to pass value of textbox from anchor tag to controller method, basically i want to transfer it from javascript function to the controller method. I am not able to understand how to transfer the value to search and current page to controller. Below is a code snippet please help to solve it.. thanks..I want to pass value of textbox from anchor tag