ajax call using jquery in asp.net OR Calling server side methods using JavaScript and JQuery in ASP.Net

As the title says ajax call using jquery in asp.net
             OR
Calling server side methods using JavaScript and JQuery in ASP.Net
In the Other Post showed how to call server side method using ajax calls with out parameters and it was used to bring the url to display the image after image was uploaded Asynchronously.

Now i will show how to check mailID is there or not in the DataBase.

Calling ServerSide Method using Jquery in asp.Net and C#

As the title says we can call Server side methods from client side using Jquery. But in this methods You cannot use Server Controls in that method.

Click Here  to see the link and how it works.

In the above link i used to display the images after uploading with Asynchronous File UploadControl. .

Asynchronous File UploadControl To Display Thumbnail Images After Uploading

Previously in This Post Showed how to use Asynchronous File UploadControl to upload images.
Now i will show how to display the uploaded Image in Thumbnail.

OutPut :