# C1.Win.Input.C1SplitButton

## Content

<div class="doc-site-dotnet-api-container">



  <h1 id="C1_Win_Input_C1SplitButton" data-uid="C1.Win.Input.C1SplitButton" class="text-break">C1SplitButton Class
</h1>
  <div class="markdown level0 summary"><p>Represents a split button control.</p>
</div>
  <div class="markdown level0 conceptual"></div>
  <div class="inheritance">
    <h5>Inheritance</h5>
    <div class="level0"><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.object">object</a></div>
    <div class="level1"><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.marshalbyrefobject">MarshalByRefObject</a></div>
    <div class="level2"><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.componentmodel.component">Component</a></div>
    <div class="level3"><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.windows.forms.control">Control</a></div>
    <div class="level4"><a class="xref" href="../C1.Win.10/C1.Framework.XViewLight.html">XViewLight</a></div>
    <div class="level5"><a class="xref" href="C1.Win.Input.Base.C1InputControl.html">C1InputControl</a></div>
    <div class="level6"><a class="xref" href="C1.Win.Input.Base.C1ButtonBase.html">C1ButtonBase</a></div>
    <div class="level7"><a class="xref" href="C1.Win.Input.Base.C1ButtonControl.html">C1ButtonControl</a></div>
    <div class="level8"><span class="xref">C1SplitButton</span></div>
  </div>
  <div class="implements">
    <h5>Implements</h5>
    <div><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.windows.forms.idroptarget">IDropTarget</a></div>
    <div><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.componentmodel.isynchronizeinvoke">ISynchronizeInvoke</a></div>
    <div><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.windows.forms.iwin32window">IWin32Window</a></div>
    <div><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.windows.forms.ibindablecomponent">IBindableComponent</a></div>
    <div><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.componentmodel.icomponent">IComponent</a></div>
    <div><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.idisposable">IDisposable</a></div>
    <div><a class="xref" href="../C1.Win.10/C1.Framework.IView.html">IView</a></div>
    <div><a class="xref" href="../C1.Win.10/C1.Win.Accessibility.ISupportUia.html">ISupportUia</a></div>
    <div><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.componentmodel.isupportinitialize">ISupportInitialize</a></div>
    <div><a class="xref" href="../C1.Win.10/C1.Win.Accessibility.Items.IUiaButton.html">IUiaButton</a></div>
    <div><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.windows.forms.ibuttoncontrol">IButtonControl</a></div>
    <div><a class="xref" href="../C1.Win.10/C1.Framework.IDropDownOwnerExtended.html">IDropDownOwnerExtended</a></div>
    <div><a class="xref" href="../C1.Win.10/C1.Framework.IDropDownOwner.html">IDropDownOwner</a></div>
    <div><a class="xref" href="../C1.Win.10/C1.Win.Accessibility.Items.IUiaSplitButton.html">IUiaSplitButton</a></div>
    <div><a class="xref" href="../C1.Win.10/C1.Win.Accessibility.Items.BaseInterfaces.IUiaInvokeProvider.html">IUiaInvokeProvider</a></div>
    <div><a class="xref" href="../C1.Win.10/C1.Win.Accessibility.Items.BaseInterfaces.IUiaExpandCollapseProvider.html">IUiaExpandCollapseProvider</a></div>
    <div><a class="xref" href="../C1.Win.10/C1.Win.Accessibility.ISupportUiaContainer.html">ISupportUiaContainer</a></div>
  </div>
  <h6><strong>Namespace</strong>: <a class="xref" href="C1.Win.Input.html">C1.Win.Input</a></h6>
  <h6><strong>Assembly</strong>: C1.Win.Input.10.dll</h6>
  <h5 id="C1_Win_Input_C1SplitButton_syntax">Syntax</h5>
  <div class="codewrapper">
    <pre><code class="lang-csharp hljs">[ToolboxBitmap(typeof(C1SplitButton), &quot;C1SplitButton.png&quot;)]
public class C1SplitButton : C1ButtonControl, IDropTarget, ISynchronizeInvoke, IWin32Window, IBindableComponent, IComponent, IDisposable, IView, ISupportUia, ISupportInitialize, IUiaButton, IButtonControl, IDropDownOwnerExtended, IDropDownOwner, IUiaSplitButton, IUiaInvokeProvider, IUiaExpandCollapseProvider, ISupportUiaContainer</code></pre>
  </div>
  <div class="codewrapper">
    <pre><code class="lang-vbnet hljs">&lt;ToolboxBitmap(GetType(C1SplitButton), &quot;C1SplitButton.png&quot;)&gt;
Public Class C1SplitButton
    Inherits C1ButtonControl
    Implements IDropTarget, ISynchronizeInvoke, IWin32Window, IBindableComponent, IComponent, IDisposable, IView, ISupportUia, ISupportInitialize, IUiaButton, IButtonControl, IDropDownOwnerExtended, IDropDownOwner, IUiaSplitButton, IUiaInvokeProvider, IUiaExpandCollapseProvider, ISupportUiaContainer</code></pre>
  </div>
  <h3 id="constructors">Constructors
</h3>
  <table class="table table-bordered table-condensed">
    <thead>
      <tr>
        <th>Name</th>
        <th>Description</th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td id="C1_Win_Input_C1SplitButton__ctor" data-uid="C1.Win.Input.C1SplitButton.#ctor">
          <a class="xref" href="C1.Win.Input.C1SplitButton.-ctor.html#C1_Win_Input_C1SplitButton__ctor">C1SplitButton()</a>
        </td>
        <td class="markdown level1 summary"><p>Initializes a new instance of the <a class="xref" href="C1.Win.Input.C1SplitButton.html">C1SplitButton</a> class.</p>
</td>
      </tr>
    </tbody>
  </table>
  <h3 id="properties">Properties
</h3>
  <table class="table table-bordered table-condensed">
    <thead>
      <tr>
        <th>Name</th>
        <th>Description</th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td id="C1_Win_Input_C1SplitButton_DroppedDown" data-uid="C1.Win.Input.C1SplitButton.DroppedDown">
          <a class="xref" href="C1.Win.Input.C1SplitButton.DroppedDown.html#C1_Win_Input_C1SplitButton_DroppedDown">DroppedDown</a>
        </td>
        <td class="markdown level1 summary"><p>Gets or sets a value indicating if the dropdown is currently open.</p>
</td>
      </tr>
      <tr>
        <td id="C1_Win_Input_C1SplitButton_Items" data-uid="C1.Win.Input.C1SplitButton.Items">
          <a class="xref" href="C1.Win.Input.C1SplitButton.Items.html#C1_Win_Input_C1SplitButton_Items">Items</a>
        </td>
        <td class="markdown level1 summary"><p>Gets the collection of <a class="xref" href="C1.Win.Input.SplitButtonItem.html">SplitButtonItem</a> components on this split button.</p>
</td>
      </tr>
      <tr>
        <td id="C1_Win_Input_C1SplitButton_ItemsImageList" data-uid="C1.Win.Input.C1SplitButton.ItemsImageList">
          <a class="xref" href="C1.Win.Input.C1SplitButton.ItemsImageList.html#C1_Win_Input_C1SplitButton_ItemsImageList">ItemsImageList</a>
        </td>
        <td class="markdown level1 summary"><p>Gets or sets the ImageList to get the images to display in the drop down items.</p>
</td>
      </tr>
      <tr>
        <td id="C1_Win_Input_C1SplitButton_Styles" data-uid="C1.Win.Input.C1SplitButton.Styles">
          <a class="xref" href="C1.Win.Input.C1SplitButton.Styles.html#C1_Win_Input_C1SplitButton_Styles">Styles</a>
        </td>
        <td class="markdown level1 summary"><p>Gets or sets the <a class="xref" href="C1.Win.Input.C1SplitButton.html">C1SplitButton</a> styles.</p>
</td>
      </tr>
    </tbody>
  </table>
  <h3 id="methods">Methods
</h3>
  <table class="table table-bordered table-condensed">
    <thead>
      <tr>
        <th>Name</th>
        <th>Description</th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td id="C1_Win_Input_C1SplitButton_CreateUiaItem_C1_Win_Accessibility_UiaItem_" data-uid="C1.Win.Input.C1SplitButton.CreateUiaItem(C1.Win.Accessibility.UiaItem)">
          <a class="xref" href="C1.Win.Input.C1SplitButton.CreateUiaItem.html#C1_Win_Input_C1SplitButton_CreateUiaItem_C1_Win_Accessibility_UiaItem_">CreateUiaItem(UiaItem)</a>
        </td>
        <td class="markdown level1 summary"><p>Creates UI Automation object of this control.</p>
</td>
      </tr>
      <tr>
        <td id="C1_Win_Input_C1SplitButton_Dispose_System_Boolean_" data-uid="C1.Win.Input.C1SplitButton.Dispose(System.Boolean)">
          <a class="xref" href="C1.Win.Input.C1SplitButton.Dispose.html#C1_Win_Input_C1SplitButton_Dispose_System_Boolean_">Dispose(bool)</a>
        </td>
        <td class="markdown level1 summary"><p>Releases the unmanaged resources used by the <a class="xref" href="C1.Win.Input.C1SplitButton.html">C1SplitButton</a> control.</p>
</td>
      </tr>
      <tr>
        <td id="C1_Win_Input_C1SplitButton_GetPreferredSize_System_Drawing_Size_" data-uid="C1.Win.Input.C1SplitButton.GetPreferredSize(System.Drawing.Size)">
          <a class="xref" href="C1.Win.Input.C1SplitButton.GetPreferredSize.html#C1_Win_Input_C1SplitButton_GetPreferredSize_System_Drawing_Size_">GetPreferredSize(Size)</a>
        </td>
        <td class="markdown level1 summary"><p>Retrieves the size of a rectangular area into which a control can be fitted.</p>
</td>
      </tr>
      <tr>
        <td id="C1_Win_Input_C1SplitButton_OnDropDownClosed_System_EventArgs_" data-uid="C1.Win.Input.C1SplitButton.OnDropDownClosed(System.EventArgs)">
          <a class="xref" href="C1.Win.Input.C1SplitButton.OnDropDownClosed.html#C1_Win_Input_C1SplitButton_OnDropDownClosed_System_EventArgs_">OnDropDownClosed(EventArgs)</a>
        </td>
        <td class="markdown level1 summary"><p>Raises the <a class="xref" href="C1.Win.Input.C1SplitButton.DropDownClosed.html">DropDownClosed</a> event.</p>
</td>
      </tr>
      <tr>
        <td id="C1_Win_Input_C1SplitButton_OnDropDownOpened_System_EventArgs_" data-uid="C1.Win.Input.C1SplitButton.OnDropDownOpened(System.EventArgs)">
          <a class="xref" href="C1.Win.Input.C1SplitButton.OnDropDownOpened.html#C1_Win_Input_C1SplitButton_OnDropDownOpened_System_EventArgs_">OnDropDownOpened(EventArgs)</a>
        </td>
        <td class="markdown level1 summary"><p>Raises the <a class="xref" href="C1.Win.Input.C1SplitButton.DropDownOpened.html">DropDownOpened</a> event.</p>
</td>
      </tr>
      <tr>
        <td id="C1_Win_Input_C1SplitButton_OnItemClicked_C1_Win_Input_ItemClickedEventArgs_" data-uid="C1.Win.Input.C1SplitButton.OnItemClicked(C1.Win.Input.ItemClickedEventArgs)">
          <a class="xref" href="C1.Win.Input.C1SplitButton.OnItemClicked.html#C1_Win_Input_C1SplitButton_OnItemClicked_C1_Win_Input_ItemClickedEventArgs_">OnItemClicked(ItemClickedEventArgs)</a>
        </td>
        <td class="markdown level1 summary"><p>Raises the <a class="xref" href="C1.Win.Input.C1SplitButton.ItemClicked.html">ItemClicked</a> event.</p>
</td>
      </tr>
      <tr>
        <td id="C1_Win_Input_C1SplitButton_OnKeyDown_System_Windows_Forms_KeyEventArgs_" data-uid="C1.Win.Input.C1SplitButton.OnKeyDown(System.Windows.Forms.KeyEventArgs)">
          <a class="xref" href="C1.Win.Input.C1SplitButton.OnKeyDown.html#C1_Win_Input_C1SplitButton_OnKeyDown_System_Windows_Forms_KeyEventArgs_">OnKeyDown(KeyEventArgs)</a>
        </td>
        <td class="markdown level1 summary"><p>Raises the <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.windows.forms.control.keydown">KeyDown</a> event.</p>
</td>
      </tr>
      <tr>
        <td id="C1_Win_Input_C1SplitButton_OnRightToLeftChanged_System_EventArgs_" data-uid="C1.Win.Input.C1SplitButton.OnRightToLeftChanged(System.EventArgs)">
          <a class="xref" href="C1.Win.Input.C1SplitButton.OnRightToLeftChanged.html#C1_Win_Input_C1SplitButton_OnRightToLeftChanged_System_EventArgs_">OnRightToLeftChanged(EventArgs)</a>
        </td>
        <td class="markdown level1 summary"><p>Raises the <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.windows.forms.control.righttoleftchanged">RightToLeftChanged</a> event.</p>
</td>
      </tr>
      <tr>
        <td id="C1_Win_Input_C1SplitButton_ResetItems" data-uid="C1.Win.Input.C1SplitButton.ResetItems">
          <a class="xref" href="C1.Win.Input.C1SplitButton.ResetItems.html#C1_Win_Input_C1SplitButton_ResetItems">ResetItems()</a>
        </td>
        <td class="markdown level1 summary"><p>Restores the default value of the <a class="xref" href="C1.Win.Input.C1SplitButton.Items.html#C1_Win_Input_C1SplitButton_Items">Items</a> property.</p>
</td>
      </tr>
      <tr>
        <td id="C1_Win_Input_C1SplitButton_ShouldSerializeItems" data-uid="C1.Win.Input.C1SplitButton.ShouldSerializeItems">
          <a class="xref" href="C1.Win.Input.C1SplitButton.ShouldSerializeItems.html#C1_Win_Input_C1SplitButton_ShouldSerializeItems">ShouldSerializeItems()</a>
        </td>
        <td class="markdown level1 summary"><p>Specifies whether to save the value of the <a class="xref" href="C1.Win.Input.C1SplitButton.Items.html#C1_Win_Input_C1SplitButton_Items">Items</a> property.</p>
</td>
      </tr>
    </tbody>
  </table>
  <h3 id="events">Events
</h3>
  <table class="table table-bordered table-condensed">
    <thead>
      <tr>
        <th>Name</th>
        <th>Description</th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td id="C1_Win_Input_C1SplitButton_DropDownClosed" data-uid="C1.Win.Input.C1SplitButton.DropDownClosed">
          <a class="xref" href="C1.Win.Input.C1SplitButton.DropDownClosed.html">DropDownClosed</a>
        </td>
        <td class="markdown level1 summary"><p>Occurs when the dropdown has been closed.</p>
</td>
      </tr>
      <tr>
        <td id="C1_Win_Input_C1SplitButton_DropDownOpened" data-uid="C1.Win.Input.C1SplitButton.DropDownOpened">
          <a class="xref" href="C1.Win.Input.C1SplitButton.DropDownOpened.html">DropDownOpened</a>
        </td>
        <td class="markdown level1 summary"><p>Occurs after the dropdown is opened.</p>
</td>
      </tr>
      <tr>
        <td id="C1_Win_Input_C1SplitButton_ItemClicked" data-uid="C1.Win.Input.C1SplitButton.ItemClicked">
          <a class="xref" href="C1.Win.Input.C1SplitButton.ItemClicked.html">ItemClicked</a>
        </td>
        <td class="markdown level1 summary"><p>Occurs when a <a class="xref" href="C1.Win.Input.SplitButtonItem.html">SplitButtonItem</a> is clicked.</p>
</td>
      </tr>
    </tbody>
  </table>

</div>
