# GrapeCity.Wpf.SpreadSheet.CellType.Editors.CalendarButton.OnLostKeyboardFocus

## Content

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<h1 id="GrapeCity_Wpf_SpreadSheet_CellType_Editors_CalendarButton_OnLostKeyboardFocus_" data-uid="GrapeCity.Wpf.SpreadSheet.CellType.Editors.CalendarButton.OnLostKeyboardFocus*">OnLostKeyboardFocus Method
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<div class="markdown level0 summary"></div>
<div class="markdown level0 conceptual"></div>



<a id="GrapeCity_Wpf_SpreadSheet_CellType_Editors_CalendarButton_OnLostKeyboardFocus_" data-uid="GrapeCity.Wpf.SpreadSheet.CellType.Editors.CalendarButton.OnLostKeyboardFocus*"></a>
<h4 id="GrapeCity_Wpf_SpreadSheet_CellType_Editors_CalendarButton_OnLostKeyboardFocus_System_Windows_Input_KeyboardFocusChangedEventArgs_" data-uid="GrapeCity.Wpf.SpreadSheet.CellType.Editors.CalendarButton.OnLostKeyboardFocus(System.Windows.Input.KeyboardFocusChangedEventArgs)">OnLostKeyboardFocus(KeyboardFocusChangedEventArgs)</h4>
<div class="markdown level1 summary"><p>Called when an element loses keyboard focus.</p>
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<div class="markdown level1 conceptual"></div>
<h5 class="declaration">Declaration</h5>
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  <pre><code class="lang-csharp hljs">protected override void OnLostKeyboardFocus(KeyboardFocusChangedEventArgs e)</code></pre>
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  <pre><code class="lang-vbnet hljs">Protected Overrides Sub OnLostKeyboardFocus(e As KeyboardFocusChangedEventArgs)</code></pre>
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<h5 class="parameters">Parameters</h5>
<table class="table table-bordered table-condensed">
  <thead>
    <tr>
      <th>Type</th>
      <th>Name</th>
      <th>Description</th>
    </tr>
  </thead>
  <tbody>
    <tr>
      <td><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.windows.input.keyboardfocuschangedeventargs">KeyboardFocusChangedEventArgs</a></td>
      <td><span class="parametername">e</span></td>
      <td><p>The event data for the <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.windows.iinputelement.lostkeyboardfocus">LostKeyboardFocus</a> event.</p>
</td>
    </tr>
  </tbody>
</table>
<h5 class="overrides">Overrides</h5>
<div><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.windows.controls.primitives.buttonbase.onlostkeyboardfocus">ButtonBase.OnLostKeyboardFocus(KeyboardFocusChangedEventArgs)</a></div>
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