SPLongOperation class

Scenario:
I am trying to create a site collection from an aspx, and I am getting a “Thread was being aborted” exception .. works just fine from a console app.

Error : Thread was being aborted

Solution:
As you have seen that this error is specific to ASPX and when the code can take good amount of time to execute, You will need to use SPLongOperation class.

Creating a Web Application / Site Collection / Site can take good amount of time and other operation like attaching a Workflow to a list item using ASPX, you might get this error in ASPX page.

Then how the hell Microsoft was able to do it.

Code:

SPLongOperation operation = new SPLongOperation(this.Page);

operation.Begin();

// do long operation code here...
System.Threading.Thread.Sleep(6000);

//operation.End("http://localhost/_layouts/success.aspx");
// updated as per gautam's suggestion 
operation.End("http://localhost/_layouts/success.aspx", Microsoft.SharePoint.Utilities.SPRedirectFlags.DoNotEndResponse, HttpContext.Current, "");

Article:
Example