Display hidden div in ASP.net page as a modal Dialog
In this approach you can load a content form the database (dynamic content) at the initial . page load to the div which going to display as a dialog box when reqired .When it is not nessory to show you can hide it using CSS ( display :none). When the popup modal dialog is open ,the content can be make visible by CSS In the below example I have generated a HTML table from code behind at the page load to the pop up div and display as a modal dialog.I have added dynamic feature (column filter) using jQuery. Using this approach you can avoid the performance delay of using separate .aspx page with i frame to load a dynamic content. aspx page ,,,div <div id="projectCreateDiv" style="width:500px ; display :none " > <asp:Table ID="testTable" runat="server" ClientIDMode="Static" > <asp:TableHeaderRow TableSection="TableHeader" >