I want to display a Modal Popup Dialogbox in ASP.Net using AJAX ModalPopup with a FormView, wich allows the user to Edit/Update using FormView within the popup, when the user select one item of gridView. That is, the popup should come with a FormView, when the user click on a select button in gridview. How to accomplish this. It will be appreciative, if you could give step by step tutorial. This is very urgent one. Please help me.