wpf-devexpress-dot-xpf-dot-dialogs-dot-dxcommondialog-d7524d5d.md
Fires when running DevExpress file dialogs in an unsupported OS (e.g. Windows XP).
Namespace : DevExpress.Xpf.Dialogs
Assembly : DevExpress.Xpf.Dialogs.v25.2.dll
NuGet Package : DevExpress.Wpf.Dialogs
public event EventHandler<NotSupportedOsVersionEventArgs> ShowDefaultDialog
Public Event ShowDefaultDialog As EventHandler(Of NotSupportedOsVersionEventArgs)
The ShowDefaultDialog event's data class is NotSupportedOsVersionEventArgs. The following properties provide information specific to this event:
| Property | Description |
|---|---|
| Dialog | Gets the DevExpress file dialog that cannot be run under Windows versions before Vista. |
| DialogResult | Returns a result of a fallback dialog, which was launched instead of the DevExpress file dialog. |
| Handled | Gets or sets whether a file dialog fallback is handled and no default processing is required. |
The DevExpress file dialogs replace standard WPF dialogs. These DevExpress counterparts fully support themes and can be displayed on Windows Vista and newer. For older OS versions, default WPF dialogs are displayed instead and the ShowDefaultDialog event is raised.
See Also