Is Grouping Possible in asp.net dropdown list while databinding it?

I need to bind a dropdownlist populating all the states of US and Canada, and I need to group them with headers as "US" and "Canada" which will be non selectable. Is that possible? Please help.
anindyasAsked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

annz7117Commented:
Using just a dropdownlist? mmm

 I guess not , have you tried with a second control , i mean, using a textbox or a combobox to select  or write :"US" or "Canada"?, and by that way you start filling the dropdownlist?, in other case ,you can use a query in the datasource with REPLACE function,  but this won't work as a header properly ...
0
anindyasAuthor Commented:
Yeah, that could be done. But the exact requirement is something like the "optgroup" property of html select list. But the problem is asp.net does not support this property.

I tried with dropdownlist control adapter, but my dropdownlist needs to be autopostback enabled. There is some problem happening regarding postback.

I need the exact rendering as the following does:
<option value="">Please select</option>
<optgroup label="Option A">
        <option value="1">1</option>
        <option value="2">2</option>
        <option value="3">3</option>
        <option value="4">4</option>
</optgroup>
<optgroup label="Option B">
    <option value="a">A</option>
    <option value="b">B</option>
    <option value="c">C</option>
</optgroup>

Open in new window

0
annz7117Commented:
Ok in asp.net  you can not add items  with </optgroup> , looks like this option is not anymore used from asp 2.0  , but if you need to do it specificaly that, you can do it with codebehind , just take a look of this article :
http://stackoverflow.com/questions/130020/dropdownlist-control-with-optgroups-for-asp-net
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Web Development

From novice to tech pro — start learning today.