This Control allows you to specify a list of Items from which you can select—similar to a ListBox or ComboBox, except only a single item is displayed at any one time, and there are up-down spin buttons to enable selection from that list. You can retrieve the SelectedIndex or SelectedItem.

This control is extremely difficult to use, and you should always consider using a ComboBox instead, unless there is really no room on your display for the drop list (e.g., you have a 320 x 100 LCD) .

public class DomainUpDown : UpDownBase {
// Public Constructors
   public DomainUpDown();
// Public Instance Properties
   public DomainUpDownItemCollection Items{get; }
   public int SelectedIndex{set; get; }
   public object SelectedItem{set; get; }
   public bool Sorted{set; get; }
   public bool Wrap{set; get; }
// Public Instance Methods
   public override void DownButton();  // overrides UpDownBase
   public override string ToString();  // overrides System.ComponentModel.Component
   public override void UpButton();  // overrides UpDownBase
// Protected Instance Methods
   protected override AccessibleObject CreateAccessibilityInstance();  // overrides Control
   protected override void OnChanged(object source, EventArgs e);  // overrides UpDownBase
   protected void OnSelectedItemChanged(object source, EventArgs e);
   protected override void OnTextBoxKeyDown(object source, KeyEventArgs e);  // overrides UpDownBase
   protected override void UpdateEditText();  // overrides UpDownBase
   protected override void WndProc(ref Message m);  // overrides ContainerControl
// Events
   public event EventHandler SelectedItemChanged;
}

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) ScrollableControl ContainerControl(IContainerControl) UpDownBase DomainUpDown