Windows Forms Splitter
Divide the user interface to give users total control over the layout of their workspace in Windows Forms. You can subdivide, resize, and even collapse content panes.Download Windows Forms Samples
Your users can resize application panes in real time by sliding the splitter in either direction, subject only to the size constraints you set.
Collapse / Restore
Instantly collapse or restore an application pane to the previous extent by using the splitter's collapse and restore buttons.
Orient your splitter horizontally or vertically within the window.
Full support for the Application Styling Framework™ means that your splitter will always fit in with your application's global look and feel.