The following tables list the members exposed by NavigationPaneExpandingEventArgs.
| Name | Description | |
|---|---|---|
 | NavigationPaneExpandingEventArgs Constructor | Creates a new instance of the NavigationPaneCollapsingEventArgs class. |
| Name | Description | |
|---|---|---|
 | Cancel | (Inherited from System.ComponentModel.CancelEventArgs) |
| PreferredWidth | Gets/sets the width of the UltraExplorerBar control when the navigation pane is collapsed or expanded. (Inherited from Infragistics.Win.UltraWinExplorerBar.NavigationPaneExpandedStateChangingEventArgsBase) |