Dropdown in gridview failing when objectdatasource.FilterExpression is applied.

Hello,
I ve got a datagrid with 2 dropdownlists in the edit template.
What Im trying to do is to filter the second list based on the selection on the first one.

Both dropdowns are bind to an objectdatasrouce. So when I select an item from the first one, in the 'SelectedIndexChanged' event i doing something like

if list1.selecteditem.text = "WHATEVER" then
     objectdatasource_secondlist.filterexpression = "field=xxx"
else
.....

But i get this error everytime:
"Databinding methods such as Eval(), XPath(), and Bind() can only be used in the context of a databound control."

The second dropdown is bound to field like bind("field").

any ideas??
LVL 8
arcrossAsked:
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

x
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.

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
Alfred A.Commented:
And here is one based on two dropdownlist:

http://forums.asp.net/t/1032264.aspx

And here is one in EE that can help:

http://www.experts-exchange.com/Programming/Languages/.NET/ASP.NET/Q_23400559.html

0
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
ASP.NET

From novice to tech pro — start learning today.