Gridview 3rd Row Not added when AutocompleteExtender Present

Hi,

I need to add Dynamic Controls (TextBoxes and DropDowns) to the GridView. For the TextBoxes I need to add AJAX Auto Complete Extender Control.

For the FirstRow of GridView EveryTHING looks Fine. i.e able to add Dynamic Textbox and AutoCompleteExtender To that textbOX and Also able to show suggestions for that Textbox based on the entries.

But Problems arising From second Row Onwards......

When I try to add Second Row for the GridView.....

able to add Dynamic Textbox and AutoCompleteExtender To that textbOX BUT  unable to show suggestions for that Textbox based on the entries.

In the Similar Manner

When I try to add Third Row for the GridView.....

Unable to add the 3rd Row for the GridView........  (When I go for the Step by Step Execution there are NO Errors Showing)

I dont Know why its heppening like that 

Please Give me suggestions 

Thanks 

Venkat