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..