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Walkthrough: Multiple Document Interface A Multiple Document Interface application (MDI) consists of a parent window that holds the menu, toolbars, and status bar, and any number of MDI child windows. Adding the ActiveBar control to an MDI parent is ...
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c# - How to properly display in MDI a child side bar and a child form in a Windows Form Application? - Stack Overflow
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How to: Implement the tabbed interface in an MDI application | WinForms Controls | DevExpress Documentation
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