![ASP.NET Dialog Window](https://static.infragistics.com/marketing/Website/products/asp/controls/interactions/dialog-window/aspnet-interactions-dialog-window-main-s.png?v=201804300900)
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.
DOWNLOAD ASP.NET Samples![ASP.NET Dialog Window: Modal or Modeless](https://static.infragistics.com/marketing/Website/products/asp/controls/interactions/dialog-window/aspnet-interactions-dialog-window-modal-or-modeless-s.png?v=201804300900)
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.
![ASP.NET Dialog Window: Customizable Header](https://static.infragistics.com/marketing/Website/products/asp/controls/interactions/dialog-window/aspnet-interactions-dialog-window-customizable-header-l.png?v=201804300900)
Resizable
Enable your end user to resize the WebDialogWindow at run-time, just like a resizable dialog on the desktop.
![ASP.NET Dialog Window: Resizable](https://static.infragistics.com/marketing/Website/products/asp/controls/interactions/dialog-window/aspnet-interactions-dialog-window-resizable-l.png?v=201804300900)
![ASP.NET Dialog Window: Window State](https://static.infragistics.com/marketing/Website/products/asp/controls/interactions/dialog-window/aspnet-interactions-dialog-window-window-state-s.png?v=201804300900)
Window State
WebDialogWindow persists whether the user has minimized, restored, or maximized its appearance.