or
<telerik:RadWindow ID="wdwDetail" Modal="true" Skin="Telerik" Width="800px" AutoSize="true" AutoSizeBehaviors="Height" OnClientAutoSizeEnd="OnClientShowCenterOnly" runat="server" VisibleOnPageLoad="false" VisibleStatusbar="false" IconUrl="~/img/favicon.ico" ShowContentDuringLoad="true" Title="Detailed Info" DestroyOnClose="false" EnableShadow="true" Behaviors="Close"> <ContentTemplate> ... </ContentTemplate></telerik:RadWindow><telerik:GridEditCommandColumn UniqueName="EditCommandColumn" EditImageUrl="~/Images/Edit.gif" ButtonType="ImageButton"> </telerik:GridEditCommandColumn>if (e.Item is GridDataItem) { GridDataItem item = (GridDataItem)e.Item; ImageButton edit = (ImageButton)item["EditCommandColumn"].Controls[0]; //edit.Attributes.Add("OnClick", " onContactRowSelected('" + sender + "','" + e + "');"); edit.Attributes["onClick"] = "alert('test');return false;"; }<ClientEvents OnCommand="radContactGrid_Command" OnRowCreated="onContactGridRowCreated" OnRowCreating="onContactGridRowCreating" OnRowSelected="onContactRowSelected" />