or
<telerik:RadButton ID="chkIsConsultation" runat="server" Text="Consultation" ToggleType="CheckBox" ButtonType="ToggleButton" CausesValidation="false"></telerik:RadButton>Protected Sub gridRemarques_ItemCreated(ByVal sender As Object, ByVal e As Telerik.Web.UI.GridItemEventArgs) Handles gridRemarques.ItemCreated If (TypeOf e.Item Is GridEditableItem AndAlso e.Item.IsInEditMode) Then Dim eItem = CType(e.Item, GridEditableItem) Dim lnkInsert As linkButton = eItem.FindControl("PerformInsertButton") Dim lnkUpdate As linkButton = eItem.FindControl("UpdateButton") If lnkInsert IsNot Nothing AndAlso e.Item.OwnerTableView.IsItemInserted Then lnkInsert.OnClientClick = "return Validate()" Else lnkUpdate.OnClientClick = "return Validate()" End If End IfEnd Subfunction Validate(){ return true;}