Update one UserControl based on other using AJAX UpdatePanel in ASP.Net

Hi,

I am working in asp.net 4.5 with VS2013. I have two usercontrols in my aspx page and in my first usercontrol i have gridview with button inside update panel  and if i press the button it should pass the value to second userconrol and based on the value i will do some db operation to bind the controls in second usercontrol.

I am wondering is it possible to achieve using AJAX? I need to do this with partial postback without posting entire content of the page. is there any way to achieve this, please show me some sample code for this.