I had followed Morten´s suggestion
<telerik:RadGrid ID="rg" runat="server" AllowFilteringByColumn="True" AllowFiltering="True">
<GroupingSettings CaseSensitive="false" />
It partially works at my scenario. Let´s say I have 20 records, I am filtering with the EmployeeName column.
If I write "ce" the filter works fine and it retrieves just one record "Bruce Wayne" (see filter_ce.jpg) BUT
If I write "ca" the filter doesn´t work and it retrieves all records at the DataSource (see filter_ca.jpg).
Any ideas?? how can I correct this behavior??