This Control implements the component tray portion of the forms designer.

You can retrieve the number of components in the tray using the ComponentCount property. The icons can be automatically lined up using the AutoArrange property, and their appearance can be modified with ShowLargeIcons. The position of an individual icon can be set using SetLocation().

The components themselves can be added using CreateComponentFromTool() and removed using RemoveComponent().

public class ComponentTray : System.Windows.Forms.ScrollableControl : System.ComponentModel.IExtenderProvider,
        ISelectionUIHandler, IOleDragClient {
// Public Constructors
   public ComponentTray(System.ComponentModel.Design.IDesigner mainDesigner, IServiceProvider serviceProvider);
// Public Instance Properties
   public bool AutoArrange{set; get; }
   public int ComponentCount{get; }
   public bool ShowLargeIcons{set; get; }
// Public Instance Methods
   public virtual void AddComponent(System.ComponentModel.IComponent component);
   public void CreateComponentFromTool(System.Drawing.Design.ToolboxItem tool);
   public Point GetLocation(System.ComponentModel.IComponent receiver);
   public virtual void RemoveComponent(System.ComponentModel.IComponent component);
   public void SetLocation(System.ComponentModel.IComponent receiver, System.Drawing.Point location);
// Protected Instance Methods
   protected virtual bool CanCreateComponentFromTool(System.Drawing.Design.ToolboxItem tool);
   protected virtual bool CanDisplayComponent(System.ComponentModel.IComponent component);
   protected void DisplayError(Exception e);
  // overrides System.Windows.Forms.Control
  // overrides System.ComponentModel.Component
  // overrides System.Windows.Forms.Control
   protected override void OnDragDrop(
  // overrides System.Windows.Forms.Control
   protected override void OnDragEnter( 
  // overrides System.Windows.Forms.Control
  // overrides System.Windows.Forms.Control
   protected override void OnDragOver(
  // overrides System.Windows.Forms.Control
   protected override void OnGiveFeedback(
  // overrides System.Windows.Forms.Control
   protected override void OnLayout(
  // overrides System.Windows.Forms.ScrollableControl
   protected virtual void OnLostCapture();
   protected override void OnMouseDown(
  // overrides System.Windows.Forms.Control
   protected override void OnMouseMove(
  // overrides System.Windows.Forms.Control
   protected override void OnMouseUp(
  // overrides System.Windows.Forms.Control
   protected override void OnPaint(
  // overrides System.Windows.Forms.Control
   protected virtual void OnSetCursor();
   protected override void WndProc(
  // overrides System.Windows.Forms.ScrollableControl
}

Hierarchy

System.Object System.MarshalByRefObject System.ComponentModel.Component(System.ComponentModel.ICompone, System.IDisposable) System.Windows.Forms.Control(System.Windows.Forms.IOleContr, System.Windows.Forms.IOleObject, System.Windows.Forms.IOleInPlaceObject, System.Windows.Forms.IOleInPlaceActiveObject, System.Windows.Forms.IOleWindow, System.Windows.Forms.IViewObject, System.Windows.Forms.IViewObject2, System.Windows.Forms.IPersist, System.Windows.Forms.IPersistStreamInit, System.Windows.Forms.IPersistPropertyBag, System.Windows.Forms.IPersistStorage, System.Windows.Forms.IQuickActivate, System.ComponentModel.ISynchronizeInvoke, System.Windows.Forms.IWin32Window) System.Windows.Forms.ScrollableControl ComponentTray(System.ComponentModel.IExtenderProvid, ISelectionUIHandler, IOleDragClient)