Dropdownlist can't change selected some times

Question

Hi People! I have a big problem I hope some one can help me with it. I'll try to describe it the best I can. please ask if there is something that you did not understand.

I have a dropdownlist that I use for selecting projects with postback enabled, it could look like this

All Miscellaneous CodeWithCare TheAsp.netProject

when the page loads it starts on All(lists all projects)

in the ddlDepartments_SelectedIndexChanged event the first time I select another value it changes fine. but next time it just keep the selected value and won't change to another item like all.

So the bottom line is. I load the page is says all in the dropdownbox I change the value to Miscellaneous and then it just keeps the value. I can't change it

my code is here

Code http://pastebin.com/m79f13f0d HTML markup http://pastebin.com/m50f7af11

Thanks in advance Entvex

Answer 1

Try setting autopostback="true" in the DDL?

Answer 2

        if (Request.QueryString["sup"] != null)
        {
            ddlDepartments.SelectedValue = Request.QueryString["sup"].ToString();
        }

this works for me :)