or
<telerik:GridTemplateColumn DataField="Image" HeaderText="Image" UniqueName="UploadImage" ItemStyle-HorizontalAlign="Center" ItemStyle-VerticalAlign="Middle" ItemStyle-Width="100px" ItemStyle-Height="100px"> <ItemTemplate> <telerik:RadBinaryImage runat="server" ID="RadBinaryImage2" DataValue='<%# Eval("Image") %>' AutoAdjustImageControlSize="false" Height="100px" Width="100px" ToolTip='<%#Eval("Name", "Product: {0}") %>' AlternateText='<%#Eval("Name", "{0}") %>' /> </ItemTemplate> <EditItemTemplate> <telerik:RadAsyncUpload runat="server" ID="AsyncUpload2" OnClientFileUploaded="OnClientFileUploadedStore" AllowedFileExtensions="jpg,jpeg,png,gif" MaxFileSize="1048576" OnValidatingFile="RadAsyncUpload1_ValidatingFile" /> <asp:Label runat="server" CssClass="lblWarning" Text="To make your image appear uniform, make the dimensions squared (ie: 100W x 100H) as PNG transparent."/> </EditItemTemplate></telerik:GridTemplateColumn>ClientEvents-OnResponseEnd="OnResponseEnd"
ClientEvents-OnRequestStart="OnRequestStart"function openRadWin() { radopen("./cvv.jpg", "RadWindow1"); }<telerik:RadWindowManager ID="RadWindowManager1" runat="server" EnableShadow="true"> <Windows> <telerik:RadWindow ID="RadWindow1" runat="server" ShowContentDuringLoad="false" Width="500px" Height="260px" Title="CVV" Behaviors="Close" Modal="true" > </telerik:RadWindow> </Windows></telerik:RadWindowManager><asp:ImageButton ID="ImageButton1" runat="server" OnClientClick="openRadWin();" ImageUrl="~/question.jpg" Height="20px" Width="20px" />