You should write some litle more of your code... like, the code in viewnotice.php for example..

ashiiiish commented: I am not getting please elabrate +1

Well... my first post has just been solved... I've forgot to include the row in the findcontrol... the code should be like this:

[CODE]DropDownList ddlPersons = (DropDownList)gridview1.Rows[0].FindControl("ddlPersons"); // of course, that the number inside the Rows[] is the row index
[/CODE]
Hope that this could be useful to someone :)