Problem in finding user control

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Hello Everyone,

I have a class GridView -->Page: GridView.cs
using this class i am adding user controls
(two DropDownList: 1.ddlSubject, 2.ddlTeacher)
in each cell of GridView, which is in -->page: Default.aspx

Now when i change the selected index of ddlSubject SelectedIndexChange is called which is in GridView.cs (Because of user control)
i can find out the row index by sender-ddlSubject

Now i want to bind data in ddlTeacher in selected index change of ddlSubject

Please Help me..

Posted 10-Jan-13 21:23pm

Pr!y@

Updated 10-Jan-13 22:32pm

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Sandeep Mewara · Answer 1 · 2013-01-10T22:01:00

Solution 1

Though you have not tagged it as ASP.NET, based on the question content it does look like an ASP.NET question.

Now, what you ask is a Cascading dropdown in Grid. You need to have Cascading Dropdown in place and then based on the dropdown values a filter on Grid data. Following will help:
Implementing Cascading DropDownList in ASP.NET GridView[^]
Ajax Cascading DropDownList With Database Example in GridView[^]

Posted 10-Jan-13 22:01pm

Sandeep Mewara

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Pr!y@ 11-Jan-13 4:53am

But sir i am using custom control..

I know Cascading dropdown. my problem is that how to find id of 2nd dropdown

Sandeep Mewara 11-Jan-13 7:46am

Custom control? You sure?

What you seek is a cascading control only. When subject is changed, you want to show respective teachers. Above links should help. About finding ID, go through the code, internally it does find the row and then control to populate.