 
            | Miner.Windows Assembly > Miner.Windows.TabbedMdi Namespace : MdiTabManager Class | 
The following tables list the members exposed by MdiTabManager.
| Name | Description | |
|---|---|---|
|  | ActiveTab | Returns the currently active MDI tab. | 
|  | AllowHorizontalTabGroups | Returns/sets whether horizontal tab groups are allowed. | 
|  | AllowVerticalTabGroups | Returns/sets whether vertical tab groups are allowed. | 
|  | CanCreateNewGroup | Returns true if the current number of MdiTabGroups is less than the MaxTabGroups. | 
|  | HasHiddenTabs | Returns whether there are any MdiTabs in the hidden tabs collection. | 
|  | HasTabGroups | Returns if any MdiTabGroups are currently defined. | 
|  | HiddenTabs | Returns the list of hidden tabs (MDI forms that are not visible). | 
|  | MaxTabGroups | Returns/sets the maximum number tab groups that are allowed (default is 5). | 
|  | MdiTabGroups | Returns the list of MDI tab groups. | 
|  | MdiTabGroupSettings | Returns the MdiTabGroupSetting object so that MDI tab group settings can be defined or retrieved. | 
|  | MdiTabSettings | Returns the MdiTabSetting object so that MDI tab settings can be defined or retrieved. | 
|  | Orientation | Returns/sets whether tab groups are cascaded horizontally or vertically. | 
|  | PersistMdiWindows | Returns/sets whether MDI windows should be persisted in the layout file. | 
|  | ShowTooltips | Returns/sets whether tooltips are allowed to be shown. | 
|  | TabGroupHeight | Returns the height of the tabs in the tab group area. | 
| Name | Description | |
|---|---|---|
|  | FormFromKey | Returns the MdiTabForm that has the specified key (or null if not found). | 
|  | MoveToGroup | Moves the specified tab to the specified tab group (end of the tab list for the group). | 
|  | MoveToNewGroup | Creates a new MdiTabGroup and moves the specified tab (and its form) to the new tab group. | 
|  | TabFromForm | Returns the MdiTab that is associated with a MdiTabForm. | 
|  | TabFromKey | Returns the MdiTab that has the specified key (or null if not found). | 
| Name | Description | |
|---|---|---|
|  | MdiTabWindowClosing | This event allows listeners to be informed whenever a tabbed MDI window is closing. The event arguments contain the Cancel property to allow the closing to be cancelled. | 
|  | MdiWindowClosed | This event allows listeners to be informed whenever a tabbed MDI window is closed. | 
|  | MdiWindowClosing | This event allows listeners to be informed whenever a tabbed MDI window is closing. | 
|  | MdiWindowDisplayed | This event allows listeners to be informed whenever a tabbed MDI window is displayed. | 
|  | MdiWindowInitialize | This event allows listeners an opportunity to initialize the tabbed MDI window before it is displayed. | 
|  | MdiWindowSelected | This event allows listeners to be informed whenever a tabbed MDI window has been selected. |