# C1.Win.ExpressionEditor.C1ExpressionEditorPanel

## Content

<div class="doc-site-dotnet-api-container">



  <h1 id="C1_Win_ExpressionEditor_C1ExpressionEditorPanel" data-uid="C1.Win.ExpressionEditor.C1ExpressionEditorPanel" class="text-break">C1ExpressionEditorPanel Class
</h1>
  <div class="markdown level0 summary"><p>The <a class="xref" href="C1.Win.ExpressionEditor.C1ExpressionEditorPanel.html">C1ExpressionEditorPanel</a> control provides С1.Win.ExpressionEditor.C1ExpressionEditor
by panel of useful tools. It provides a list of predefined and dynamic elements that can be used in expression.</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"><span class="xref">C1ExpressionEditorPanel</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="https://learn.microsoft.com/dotnet/api/system.componentmodel.isupportinitialize">ISupportInitialize</a></div>
    <div><span class="xref">ISupportUia</span></div>
    <div><span class="xref">ISupportUiaContainer</span></div>
  </div>
  <h6><strong>Namespace</strong>: <a class="xref" href="C1.Win.ExpressionEditor.html">C1.Win.ExpressionEditor</a></h6>
  <h6><strong>Assembly</strong>: C1.Win.ExpressionEditor.10.dll</h6>
  <h5 id="C1_Win_ExpressionEditor_C1ExpressionEditorPanel_syntax">Syntax</h5>
  <div class="codewrapper">
    <pre><code class="lang-csharp hljs">[ToolboxBitmap(typeof(C1ExpressionEditorPanel), &quot;C1ExpressionEditorPanel.png&quot;)]
public class C1ExpressionEditorPanel : Control, IDropTarget, ISynchronizeInvoke, IWin32Window, IBindableComponent, IComponent, IDisposable, ISupportInitialize, ISupportUia, ISupportUiaContainer</code></pre>
  </div>
  <div class="codewrapper">
    <pre><code class="lang-vbnet hljs">&lt;ToolboxBitmap(GetType(C1ExpressionEditorPanel), &quot;C1ExpressionEditorPanel.png&quot;)&gt;
Public Class C1ExpressionEditorPanel
    Inherits Control
    Implements IDropTarget, ISynchronizeInvoke, IWin32Window, IBindableComponent, IComponent, IDisposable, ISupportInitialize, ISupportUia, 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_ExpressionEditor_C1ExpressionEditorPanel__ctor" data-uid="C1.Win.ExpressionEditor.C1ExpressionEditorPanel.#ctor">
          <a class="xref" href="C1.Win.ExpressionEditor.C1ExpressionEditorPanel.-ctor.html#C1_Win_ExpressionEditor_C1ExpressionEditorPanel__ctor">C1ExpressionEditorPanel()</a>
        </td>
        <td class="markdown level1 summary"><p>Initializes a new instance of the <a class="xref" href="C1.Win.ExpressionEditor.C1ExpressionEditorPanel.html">C1ExpressionEditorPanel</a> control.</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_ExpressionEditor_C1ExpressionEditorPanel_Categories" data-uid="C1.Win.ExpressionEditor.C1ExpressionEditorPanel.Categories">
          <a class="xref" href="C1.Win.ExpressionEditor.C1ExpressionEditorPanel.Categories.html#C1_Win_ExpressionEditor_C1ExpressionEditorPanel_Categories">Categories</a>
        </td>
        <td class="markdown level1 summary"><p>Gets the expression item categories.</p>
</td>
      </tr>
      <tr>
        <td id="C1_Win_ExpressionEditor_C1ExpressionEditorPanel_DefaultSize" data-uid="C1.Win.ExpressionEditor.C1ExpressionEditorPanel.DefaultSize">
          <a class="xref" href="C1.Win.ExpressionEditor.C1ExpressionEditorPanel.DefaultSize.html#C1_Win_ExpressionEditor_C1ExpressionEditorPanel_DefaultSize">DefaultSize</a>
        </td>
        <td class="markdown level1 summary"><p>Gets the default size of the control.</p>
</td>
      </tr>
      <tr>
        <td id="C1_Win_ExpressionEditor_C1ExpressionEditorPanel_ExpressionEditor" data-uid="C1.Win.ExpressionEditor.C1ExpressionEditorPanel.ExpressionEditor">
          <a class="xref" href="C1.Win.ExpressionEditor.C1ExpressionEditorPanel.ExpressionEditor.html#C1_Win_ExpressionEditor_C1ExpressionEditorPanel_ExpressionEditor">ExpressionEditor</a>
        </td>
        <td class="markdown level1 summary"><p>Gets or sets related expression editor control.</p>
</td>
      </tr>
      <tr>
        <td id="C1_Win_ExpressionEditor_C1ExpressionEditorPanel_Theme" data-uid="C1.Win.ExpressionEditor.C1ExpressionEditorPanel.Theme">
          <a class="xref" href="C1.Win.ExpressionEditor.C1ExpressionEditorPanel.Theme.html#C1_Win_ExpressionEditor_C1ExpressionEditorPanel_Theme">Theme</a>
        </td>
        <td class="markdown level1 summary"><p>Gets or sets theme.</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_ExpressionEditor_C1ExpressionEditorPanel_BeginInit" data-uid="C1.Win.ExpressionEditor.C1ExpressionEditorPanel.BeginInit">
          <a class="xref" href="C1.Win.ExpressionEditor.C1ExpressionEditorPanel.BeginInit.html#C1_Win_ExpressionEditor_C1ExpressionEditorPanel_BeginInit">BeginInit()</a>
        </td>
        <td class="markdown level1 summary"><p>Signals the object that initialization is starting.</p>
</td>
      </tr>
      <tr>
        <td id="C1_Win_ExpressionEditor_C1ExpressionEditorPanel_CreateUiaItem_C1_Win_Accessibility_UiaItem_" data-uid="C1.Win.ExpressionEditor.C1ExpressionEditorPanel.CreateUiaItem(C1.Win.Accessibility.UiaItem)">
          <a class="xref" href="C1.Win.ExpressionEditor.C1ExpressionEditorPanel.CreateUiaItem.html#C1_Win_ExpressionEditor_C1ExpressionEditorPanel_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_ExpressionEditor_C1ExpressionEditorPanel_Dispose_System_Boolean_" data-uid="C1.Win.ExpressionEditor.C1ExpressionEditorPanel.Dispose(System.Boolean)">
          <a class="xref" href="C1.Win.ExpressionEditor.C1ExpressionEditorPanel.Dispose.html#C1_Win_ExpressionEditor_C1ExpressionEditorPanel_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.ExpressionEditor.C1ExpressionEditorPanel.html">C1ExpressionEditorPanel</a> and its child controls and optionally releases the managed resources.</p>
</td>
      </tr>
      <tr>
        <td id="C1_Win_ExpressionEditor_C1ExpressionEditorPanel_EndInit" data-uid="C1.Win.ExpressionEditor.C1ExpressionEditorPanel.EndInit">
          <a class="xref" href="C1.Win.ExpressionEditor.C1ExpressionEditorPanel.EndInit.html#C1_Win_ExpressionEditor_C1ExpressionEditorPanel_EndInit">EndInit()</a>
        </td>
        <td class="markdown level1 summary"><p>Signals the object that initialization is complete.</p>
</td>
      </tr>
      <tr>
        <td id="C1_Win_ExpressionEditor_C1ExpressionEditorPanel_GetUiaItem_System_Boolean_C1_Win_Accessibility_UiaItem_" data-uid="C1.Win.ExpressionEditor.C1ExpressionEditorPanel.GetUiaItem(System.Boolean,C1.Win.Accessibility.UiaItem)">
          <a class="xref" href="C1.Win.ExpressionEditor.C1ExpressionEditorPanel.GetUiaItem.html#C1_Win_ExpressionEditor_C1ExpressionEditorPanel_GetUiaItem_System_Boolean_C1_Win_Accessibility_UiaItem_">GetUiaItem(bool, UiaItem)</a>
        </td>
        <td class="markdown level1 summary"><p>Gets UI Automation object of this control.</p>
</td>
      </tr>
      <tr>
        <td id="C1_Win_ExpressionEditor_C1ExpressionEditorPanel_OnEditorChanged_System_EventArgs_" data-uid="C1.Win.ExpressionEditor.C1ExpressionEditorPanel.OnEditorChanged(System.EventArgs)">
          <a class="xref" href="C1.Win.ExpressionEditor.C1ExpressionEditorPanel.OnEditorChanged.html#C1_Win_ExpressionEditor_C1ExpressionEditorPanel_OnEditorChanged_System_EventArgs_">OnEditorChanged(EventArgs)</a>
        </td>
        <td class="markdown level1 summary"><p>Rises the <a class="xref" href="C1.Win.ExpressionEditor.C1ExpressionEditorPanel.EditorChanged.html">EditorChanged</a> event.</p>
</td>
      </tr>
      <tr>
        <td id="C1_Win_ExpressionEditor_C1ExpressionEditorPanel_OnRightToLeftChanged_System_EventArgs_" data-uid="C1.Win.ExpressionEditor.C1ExpressionEditorPanel.OnRightToLeftChanged(System.EventArgs)">
          <a class="xref" href="C1.Win.ExpressionEditor.C1ExpressionEditorPanel.OnRightToLeftChanged.html#C1_Win_ExpressionEditor_C1ExpressionEditorPanel_OnRightToLeftChanged_System_EventArgs_">OnRightToLeftChanged(EventArgs)</a>
        </td>
        <td class="markdown level1 summary"><p>Raises the System.Windows.Forms.Control.RightToLeftChanged event.</p>
</td>
      </tr>
      <tr>
        <td id="C1_Win_ExpressionEditor_C1ExpressionEditorPanel_OnThemeChanged_System_EventArgs_" data-uid="C1.Win.ExpressionEditor.C1ExpressionEditorPanel.OnThemeChanged(System.EventArgs)">
          <a class="xref" href="C1.Win.ExpressionEditor.C1ExpressionEditorPanel.OnThemeChanged.html#C1_Win_ExpressionEditor_C1ExpressionEditorPanel_OnThemeChanged_System_EventArgs_">OnThemeChanged(EventArgs)</a>
        </td>
        <td class="markdown level1 summary"><p>Rises the <a class="xref" href="C1.Win.ExpressionEditor.C1ExpressionEditorPanel.StylesChanged.html">StylesChanged</a> event.</p>
</td>
      </tr>
      <tr>
        <td id="C1_Win_ExpressionEditor_C1ExpressionEditorPanel_ResetCategories" data-uid="C1.Win.ExpressionEditor.C1ExpressionEditorPanel.ResetCategories">
          <a class="xref" href="C1.Win.ExpressionEditor.C1ExpressionEditorPanel.ResetCategories.html#C1_Win_ExpressionEditor_C1ExpressionEditorPanel_ResetCategories">ResetCategories()</a>
        </td>
        <td class="markdown level1 summary"></td>
      </tr>
      <tr>
        <td id="C1_Win_ExpressionEditor_C1ExpressionEditorPanel_SetBoundsCore_System_Int32_System_Int32_System_Int32_System_Int32_System_Windows_Forms_BoundsSpecified_" data-uid="C1.Win.ExpressionEditor.C1ExpressionEditorPanel.SetBoundsCore(System.Int32,System.Int32,System.Int32,System.Int32,System.Windows.Forms.BoundsSpecified)">
          <a class="xref" href="C1.Win.ExpressionEditor.C1ExpressionEditorPanel.SetBoundsCore.html#C1_Win_ExpressionEditor_C1ExpressionEditorPanel_SetBoundsCore_System_Int32_System_Int32_System_Int32_System_Int32_System_Windows_Forms_BoundsSpecified_">SetBoundsCore(int, int, int, int, BoundsSpecified)</a>
        </td>
        <td class="markdown level1 summary"></td>
      </tr>
      <tr>
        <td id="C1_Win_ExpressionEditor_C1ExpressionEditorPanel_ShouldSerializeCategories" data-uid="C1.Win.ExpressionEditor.C1ExpressionEditorPanel.ShouldSerializeCategories">
          <a class="xref" href="C1.Win.ExpressionEditor.C1ExpressionEditorPanel.ShouldSerializeCategories.html#C1_Win_ExpressionEditor_C1ExpressionEditorPanel_ShouldSerializeCategories">ShouldSerializeCategories()</a>
        </td>
        <td class="markdown level1 summary"></td>
      </tr>
      <tr>
        <td id="C1_Win_ExpressionEditor_C1ExpressionEditorPanel_ShowAboutBox" data-uid="C1.Win.ExpressionEditor.C1ExpressionEditorPanel.ShowAboutBox">
          <a class="xref" href="C1.Win.ExpressionEditor.C1ExpressionEditorPanel.ShowAboutBox.html#C1_Win_ExpressionEditor_C1ExpressionEditorPanel_ShowAboutBox">ShowAboutBox()</a>
        </td>
        <td class="markdown level1 summary"><p>Shows the About Box for an instance of C1ExpressionEditorPanel.</p>
</td>
      </tr>
      <tr>
        <td id="C1_Win_ExpressionEditor_C1ExpressionEditorPanel_WndProc_System_Windows_Forms_Message__" data-uid="C1.Win.ExpressionEditor.C1ExpressionEditorPanel.WndProc(System.Windows.Forms.Message@)">
          <a class="xref" href="C1.Win.ExpressionEditor.C1ExpressionEditorPanel.WndProc.html#C1_Win_ExpressionEditor_C1ExpressionEditorPanel_WndProc_System_Windows_Forms_Message__">WndProc(ref Message)</a>
        </td>
        <td class="markdown level1 summary"><p>Processes Windows messages.</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_ExpressionEditor_C1ExpressionEditorPanel_EditorChanged" data-uid="C1.Win.ExpressionEditor.C1ExpressionEditorPanel.EditorChanged">
          <a class="xref" href="C1.Win.ExpressionEditor.C1ExpressionEditorPanel.EditorChanged.html">EditorChanged</a>
        </td>
        <td class="markdown level1 summary"><p>Occurs when ExpressionEditor property changed.</p>
</td>
      </tr>
      <tr>
        <td id="C1_Win_ExpressionEditor_C1ExpressionEditorPanel_StylesChanged" data-uid="C1.Win.ExpressionEditor.C1ExpressionEditorPanel.StylesChanged">
          <a class="xref" href="C1.Win.ExpressionEditor.C1ExpressionEditorPanel.StylesChanged.html">StylesChanged</a>
        </td>
        <td class="markdown level1 summary"><p>Occurs when theme or some style has changed.</p>
</td>
      </tr>
    </tbody>
  </table>

</div>