Paging DataGrids in VB.NET

Can anyone point me to where I can find a sample on how to code paging for a Web Form datagrid? I set the Allow Paging
To True, but get an error "AllowCustomPaging must be true and VirtualItemCount must be set for a DataGrid with ID DataGrid1 when AllowPaging is set to true and the selected datasource does not implement ICollection." Strange thing is I did not select the "Allow Custom Paging" check box, only the "Allow Paging"
check box. I have search the web and all I see is how to do things in ASP.NET, but I am not into coding ASP.NET but rather VB.NET
Thanks for any Guidance

:confused:

MAybe I should read the error message better. It obviously want me to use "Allow Custom Paging" because I do not have ICollection implemented. So what is the ICollection all about?

ICollection Interface