bind search data in list view which has already with object binding

Hi,
I have list view below like this
 <asp:ListView ID="lvFtsUser" runat="server" DataKeyNames="FtsUserId"                         ItemType="fts.Models.FTPUser" SelectMethod="lvFtsUser_GetData"                         OnItemDeleted="lvFtsUser_ItemDeleted" OnPagePropertiesChanging="lvFtsUser_PagePropertiesChanging">             <EmptyDataTemplate>                 No data was returned.             </EmptyDataTemplate> &n ...