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The WinForms SplitContainer is a divider that splits the available space horizontally or vertically with a movable splitter. It helps to resize the docked controls and allows to collapse and expand child controls with theme support. Supports to restrict resizing on specific minimum size.


Collapse or expand a child by simply double-clicking on a splitter. Customize the look of the splitter and panel backgrounds with custom brushes, etc. Windows Forms split container resize splitter and expand/collapse buttons


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