- ComboBox - ChildAccessibleObject 
- ObjectCollection 
- ComboBox() 
- AutoCompleteCustomSource 
- AutoCompleteMode 
- AutoCompleteSource 
- BackColor 
- BackgroundImage 
- BackgroundImageLayout 
- CreateParams 
- DataSource 
- DefaultSize 
- DrawMode 
- DropDownHeight 
- DropDownStyle 
- DropDownWidth 
- DroppedDown 
- FlatStyle 
- Focused 
- ForeColor 
- IntegralHeight 
- ItemHeight 
- Items 
- MaxDropDownItems 
- MaximumSize 
- MaxLength 
- MinimumSize 
- Padding 
- PreferredHeight 
- SelectedIndex 
- SelectedItem 
- SelectedText 
- SelectionLength 
- SelectionStart 
- Sorted 
- Text 
- AddItemsCore(Object[]) 
- BeginUpdate() 
- CreateAccessibilityInstance() 
- CreateHandle() 
- Dispose(Boolean) 
- EndUpdate() 
- FindString(String) 
- FindString(String, Int32) 
- FindStringExact(String) 
- FindStringExact(String, Int32) 
- GetItemHeight(Int32) 
- IsInputKey(Keys) 
- OnBackColorChanged(EventArgs) 
- OnDataSourceChanged(EventArgs) 
- OnDisplayMemberChanged(EventArgs) 
- OnDrawItem(DrawItemEventArgs) 
- OnDropDown(EventArgs) 
- OnDropDownClosed(EventArgs) 
- OnDropDownStyleChanged(EventArgs) 
- OnFontChanged(EventArgs) 
- OnForeColorChanged(EventArgs) 
- OnGotFocus(EventArgs) 
- OnHandleCreated(EventArgs) 
- OnHandleDestroyed(EventArgs) 
- OnKeyDown(KeyEventArgs) 
- OnKeyPress(KeyPressEventArgs) 
- OnKeyUp(KeyEventArgs) 
- OnLostFocus(EventArgs) 
- OnMeasureItem(MeasureItemEventArgs) 
- OnMouseDown(MouseEventArgs) 
- OnMouseEnter(EventArgs) 
- OnMouseLeave(EventArgs) 
- OnParentBackColorChanged(EventArgs) 
- OnResize(EventArgs) 
- OnSelectedIndexChanged(EventArgs) 
- OnSelectedItemChanged(EventArgs) 
- OnSelectedValueChanged(EventArgs) 
- OnSelectionChangeCommitted(EventArgs) 
- OnTextChanged(EventArgs) 
- OnTextUpdate(EventArgs) 
- OnValidating(CancelEventArgs) 
- ProcessCmdKey(Message, Keys) 
- ProcessKeyEventArgs(Message) 
- RefreshItem(Int32) 
- RefreshItems() 
- ResetText() 
- ScaleControl(SizeF, BoundsSpecified) 
- Select(Int32, Int32) 
- SelectAll() 
- SetBoundsCore(Int32, Int32, Int32, Int32, BoundsSpecified) 
- SetItemCore(Int32, Object) 
- SetItemsCore(IList) 
- ToString() 
- WndProc(Message) 
- BackgroundImageChanged 
- BackgroundImageLayoutChanged 
- DoubleClick 
- DrawItem 
- DropDown 
- DropDownClosed 
- DropDownStyleChanged 
- MeasureItem 
- PaddingChanged 
- Paint 
- SelectedIndexChanged 
- SelectionChangeCommitted 
- TextUpdate 
 
net9.0-windows10.0.22621
    namespace System.Windows.Forms
{
    [DefaultBindingProperty("Text")]
    [DefaultEvent("SelectedIndexChanged")]
    [DefaultProperty("Items")]
    [Designer("System.Windows.Forms.Design.ComboBoxDesigner, System.Design, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a")]
    public class ComboBox : ListControl
    {
        protected override void WndProc(ref Message m);
    }
}
            | NetFx Compat Lab | 11.4 % Reference this API | 
|---|---|
| nuget.org | 0.1 % Reference this API | 
| Upgrade Planner | 0.1 % Reference this API | 
| .NET | 5.06.07.08.09.0 | 
| .NET Core | 3.03.1 | 
| .NET Framework | 1.01.12.03.03.54.04.54.5.14.5.24.64.6.14.6.24.74.7.14.7.24.84.8.1 | 
| Information specific to net9.0 | |
| Platforms | This API is only available when you target a specific platform: | 
| Windows | 7.08.010.0.1776310.0.1836210.0.1904110.0.2034810.0.2200010.0.22621 | 
| Information specific to net9.0-windows10.0.22621 | |
| Assembly | System.Windows.Forms , Version=9.0.0.0, PublicKeyToken=b77a5c561934e089 | 
| Referencing | Your project needs to set  | 
| Platform Restrictions | This API is only supported on the following platforms: 
 | 
- Built-in API
- Package-provided API