How To Invoke Ajax Jquery Web Method Without Page Reload (Refresh) In Asp.Net
First of all add 'jquery.min.js' to your aspx page.
On your aspx page, inside the script tag, add the ajax code as shown below.
On Code behind, add the Reference System. Web.Services on using statement section.
Then add the following code.
> By this way you can call any web method from aspx page to the code behind without page reload.