or

function SelectedIndexChangedHandler(sender, args) { var $ = $telerik.$; if (args.get_item().get_value() == "NULL") { var ResourceComboBox = $find($("[id$='Form_ResActivites']").attr("id")); //var emptyItem = ResourceComboBox.findItemByText("Consultation"); var items = ResourceComboBox.get_items(); items.getItem(2).select(); } }

<telerik:GridTemplateColumn DataField="TypeObjectTypes" FilterControlAltText="Filter TypeObjectTypes column" HeaderText="Object Type" UniqueName="TypeObjectTypes"> <EditItemTemplate> <asp:CheckBoxList ID="CblObjectTypes" runat="server"> <asp:ListItem Value="DynamicImage">Dynamic Image</asp:ListItem> <asp:ListItem Value="StaticURL">Static URL</asp:ListItem> <asp:ListItem>Static Text</asp:ListItem> <asp:ListItem Value="DynamicScrolltext">Dynamic Scrolltext</asp:ListItem> <asp:ListItem Value="FreeText">Free Text</asp:ListItem> <asp:ListItem>Object List</asp:ListItem> </asp:CheckBoxList> </EditItemTemplate> <ItemTemplate> <asp:Label ID="TypeObjectTypesLabel" runat="server" Text='<%# Eval("TypeObjectTypes") %>'></asp:Label> </ItemTemplate></telerik:GridTemplateColumn>...</telerik:RadGrid><asp:ObjectDataSource ID="ObjectDataSource2" runat="server" DeleteMethod="DeleteLayoutType" InsertMethod="InsertLayoutType" SelectMethod="GetLayoutTypes" TypeName="LayoutTypesBLL" UpdateMethod="UpdateLayoutType" > <DeleteParameters> <asp:Parameter Name="TypeID" Type="Int32" /> </DeleteParameters> <InsertParameters> <asp:Parameter Name="TypeName" Type="String" /> <asp:Parameter Name="TypeText" Type="String" /> <asp:Parameter Name="TypeObjectTypes" Type="String" /> <asp:Parameter Name="TypeMenu" Type="String" /> <asp:Parameter Name="TypePriority" Type="Int32" /> <asp:Parameter Name="ProjectID" Type="Int64" /> </InsertParameters> <UpdateParameters> <asp:Parameter Name="TypeName" Type="String" /> <asp:Parameter Name="TypeText" Type="String" /> <asp:Parameter Name="TypeObjectTypes" Type="String" /> <asp:Parameter Name="TypeMenu" Type="String" /> <asp:Parameter Name="TypePriority" Type="Int32" /> <asp:Parameter Name="ProjectID" Type="Int64" /> <asp:Parameter Name="TypeID" Type="Int32" /> </UpdateParameters></asp:ObjectDataSource>