RadGrid supports editing items in a popup edit form. When an item is put in edit mode RadGrid will display a popup with the edit form. You merely need to set the
EditMode property of the corresponding GridTableView to
Popup.
You can toggle the
Allow multi-row Edit checkbox for each of the
grids to verify that
popup edit forms is compatible with this feature. The first
grid in the example is further extended
with Paging, Sorting and AJAX functionality delivered by
RadAjaxManager. The second grid shows a FormTemplate
edit form in the popup.
More information can be found in this topic from the documentation:
Popup Edit Form