i have used demo code from the http://demos.telerik.com/aspnet-ajax/grid/examples/data-binding/client-side/client-item-template/defaultvb.aspx?show-source=true
and i got error message :
Parser Error Description: An error occurred during the parsing of
a resource required to service this request. Please review the
following specific parse error details and modify your source file
appropriately.
Parser Error Message: Type 'Telerik.Web.UI.GridTemplateColumn' does not have a public property named 'clientitemtemplate'.
Source Error:
</telerik:GridBoundColumn>
<telerik:GridTemplateColumn UniqueName="TitleClientTemplateColumn" HeaderText="Title"> Line 30:
<clientitemtemplate>
<span style="#=formatTitle(ContactTitle)#">#=ContactTitle #</span>
</clientitemtemplate>