This Control is automatically docked to either the Top, Bottom, Left, or Right of a control. It is then used to automatically resize the Control object docked to the same edge immediately preceding it in the Z order, as the user drags it around with the mouse.

You can set the minimum dimension for the Control you are adjusting with the MinSize property. The split bar can be further constrained by specifying MinExtra. This determines the minimum size of the remaining portion of the control (i.e., the area into which a Control with the Dock property set to DockStyle.Fill would be positioned).

The current position of the bar can be controlled with the SplitPosition property.

The split bar raises SplitterMoving and SplitterMoved events as it is dragged around and then released. You can modify the splitter position dynamically by binding to these events and changing the event data.

public class Splitter : Control : IMessageFilter {
// Public Constructors
   public Splitter();
// Public Instance Properties
   public override bool AllowDrop{set; get; }
// overrides Control
   public override AnchorStyles Anchor{set; get; }
// overrides Control
   public override Image BackgroundImage{set; get; }
// overrides Control
   public BorderStyle BorderStyle{set; get; }
   public override DockStyle Dock{set; get; }
// overrides Control
   public override Font Font{set; get; }
// overrides Control
   public override Color ForeColor{set; get; }
// overrides Control
   public ImeMode ImeMode{set; get; }
// overrides Control
   public int MinExtra{set; get; }
   public int MinSize{set; get; }
   public int SplitPosition{set; get; }
   public bool TabStop{set; get; }
// overrides Control
   public override string Text{set; get; }
// overrides Control
// Protected Instance Properties
   protected override CreateParams CreateParams{get; }
// overrides Control
   protected override ImeMode DefaultImeMode{get; }
// overrides Control
   protected override Size DefaultSize{get; }
// overrides Control
// Public Instance Methods
   public bool PreFilterMessage(ref Message m);  // implements IMessageFilter
   public override string ToString();  // overrides System.ComponentModel.Component
// Protected Instance Methods
   protected override void OnKeyDown(KeyEventArgs e);  // overrides Control
   protected override void OnMouseDown(MouseEventArgs e);  // overrides Control
   protected override void OnMouseMove(MouseEventArgs e);  // overrides Control
   protected override void OnMouseUp(MouseEventArgs e);  // overrides Control
   protected virtual void OnSplitterMoved(SplitterEventArgs sevent);
   protected virtual void OnSplitterMoving(SplitterEventArgs sevent);
   protected override void SetBoundsCore(int x, int y, int width, int height, BoundsSpecified specified);  // overrides Control
// Events
   public event EventHandler Enter;
// overrides Control
   public event KeyEventHandler KeyDown;
// overrides Control
   public event KeyPressEventHandler KeyPress;
// overrides Control
   public event KeyEventHandler KeyUp;
// overrides Control
   public event EventHandler Leave;
// overrides Control
   public event SplitterEventHandler SplitterMoved;
   public event SplitterEventHandler SplitterMoving;
}

Hierarchy

System.Object System.MarshalByRefObject System.ComponentModel.Component(System.ComponentModel.IComponen, System.IDisposable) Control(IOleContro, IOleObject, IOleInPlaceObject, IOleInPlaceActiveObject, IOleWindow, IViewObject, IViewObject2, IPersist, IPersistStreamInit, IPersistPropertyBag, IPersistStorage, IQuickActivate, System.ComponentModel.ISynchronizeInvoke, IWin32Window) Splitter(IMessageFilter)