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 End-User Documentation
WPF Controls > DevExpress.Xpf.Bars > MDIMergeStyle
View this topic on docs.devexpress.com (Learn more)

MDIMergeStyle Enumeration

Provides members used to specify what child DocumentPanels invoke the merging/unmerging mechanism.

Namespace:DevExpress.Xpf.Bars
Assembly:DevExpress.Xpf.Core.v19.1.dll

Expanded Public Members

Show: Inherited
  Name Description
Public field Always

The merging mechanism is invoked when an MDI child panel is maximized in a DocumentGroup. In the case of a tabbed UI, it is invoked when a tab is selected in a DocumentGroup. If there are multiple DocumentGroups, the merging mechanism is invoked for all DocumentGroups simultaneously, thus all of them are merged to the parent at the same time.

The unmerge mechanism is invoked when an MDI child panel is restored from the maximized state to the normal state, or in case of the Tabbed UI, when another tab is selected.
Public field Default Identical to the Always value.
Public field Never Prevents all child tabbed and MDI panels from being merged.
Public field WhenChildActivated

The merging mechanism is invoked when a maximized MDI child panel is activated. In the case of a tabbed UI, the merging mechanism is invoked when a selected tab is activated.

The unmerge mechanism is invoked when a maximized MDI child panel is restored from the maximized state to the normal state, or when it is deactivated. In the case of a tabbed UI, the unmerge mechanism is invoked when a selected tab is deselected or deactivated.
Public field WhenLoadedOrChildActivated Similar to the WhenChildActivated mode. Additionally, merges those MDI panels and tabs that are initially maximized (docked), but not yet selected (e.g., on application start).
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Expanded Remarks

MDIMergeStyle enumerator values are used to set the DockLayoutManager.MDIMergeStyle, DocumentPanel.MDIMergeStyle, BarManager.MDIMergeStyle, RibbonControl.MDIMergeStyle and RibbonStatusBarControl.MDIMergeStyle properties.

See the MDI Bar Merging and MDI Ribbon Merging topics to learn more.

Expanded See Also

DevExpress.Xpf.Bars Namespace
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