That is IsPostBack Property

Asp net dropdownlist selectedvalue not updating

But we need to check where exactly it is getting called. The Dropdown list is load with a source file.

BeginForm overload that takes no parameters. You might have got the answer.

Important This example

The following code shows the CategoryChosen method the form was submitted to. Important This example has a text box that accepts user input, which is a potential security threat. When you add a new category, the correct category value is generated. See highlighted option in the image below. Hooking up the Harvest Chosen jQuery Plugin The following section is easier to follow if you have some experience with jQuery.

The following code

So, like and share this with your friends so that anybody who is unable to find the problem, finally lets out a sigh. But till it is giving the postbacks.