[DotNetDevelopment] Problem with ASP.NET AJAX AutoComplete Extender Control

[P. Bixam]

Hi Everybody,

I have following problem with ASP.NET AJAX AutoComplete Extender Control.
I have associated this control to a Text Box,
When I open the form and typing letters in the Text Box it is displaying
suggestions correctly, but I move the scrollbar to down of my form - then
suggestions are showing on the top of that TextBox i.e not showing below the
TextBox instead it is showing below of some other control which was on the
top of my TextBox.

My code is as follows
TextBox txtFName = new TextBox();
txtFName.ID="txtFName";
Controls.Add(txtFName);
AutoCompleteExtender acExtFName=new AutoCompleteExtender();
acExtFName.ID="acExtFName";
acExtFName.TargetControlID="txtFName ";
acExtFName.ServicePath="";
acExtFName.MethodName="";
acExtFName.PrefixLengtrh=;
acExtFName.DelimetedChars="";
Controls.Add(acExtFName);

I set all the properties except Animations.

Can anyone advice me to resolve this issue.

Thanks & Regards
Bixam.