| C1.WPF.RichTextBox Namespace > C1ThicknessMenuItem Class : SubmenuOpening Event |
'DeclarationPublic Event SubmenuOpening As System.EventHandler(Of CancelSourceEventArgs)
public event System.EventHandler<CancelSourceEventArgs> SubmenuOpening
The event handler receives an argument of type C1.WPF.CancelSourceEventArgs containing data related to this event. The following CancelSourceEventArgs properties provide information specific to this event.
| Property | Description |
|---|---|
| Cancel | (Inherited from System.ComponentModel.CancelEventArgs) |
| Source |
Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2