ASP.NET Dialog Window
The ASP.NET AJAX dialog window control is designed to replicate the functionality of a standard Windows Forms dialog box, allowing popup of both modal and non-modal dialogs in-browser that show all common dialog behaviors.
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Modal or Modeless
The WebDialogWindow lets you determine whether the dialog behaves as a modal or modeless dialog, providing better control over the flow of your application.
Customizable Header
Display a customizable header area, insert caption text and several buttons including the close, minimize, and maximize buttons seen in desktop applications.
Resizable
Enable your end user to resize the WebDialogWindow at run-time, just like a resizable dialog on the desktop.
Window State
WebDialogWindow persists whether the user has minimized, restored, or maximized its appearance.