# C1.Win.Calendar.C1CalendarView.DropDownOpening

## Content

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<h1 id="C1_Win_Calendar_C1CalendarView_DropDownOpening" data-uid="C1.Win.Calendar.C1CalendarView.DropDownOpening" class="text-break">DropDownOpening Event
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<div class="markdown level0 summary"><p>Occurs as a dropdown component is opening.</p>
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<div class="markdown level0 conceptual"></div>
<h6><strong>Namespace</strong>: <a class="xref" href="C1.Win.Calendar.html">C1.Win.Calendar</a></h6>
<h6><strong>Assembly</strong>: C1.Win.Calendar.10.dll</h6>
<h5 id="C1_Win_Calendar_C1CalendarView_DropDownOpening_syntax">Syntax</h5>
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  <pre><code class="lang-csharp hljs">public event EventHandler DropDownOpening</code></pre>
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<div class="codewrapper">
  <pre><code class="lang-vbnet hljs">Public Event DropDownOpening As EventHandler</code></pre>
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<h5 class="returns">Returns</h5>
<table class="table table-bordered table-condensed">
  <thead>
    <tr>
      <th>Type</th>
      <th>Description</th>
    </tr>
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  <tbody>
    <tr>
      <td><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.eventhandler">EventHandler</a></td>
      <td>Occurs as a dropdown component is opening.</td>
    </tr>
  </tbody>
</table>
<h5 id="C1_Win_Calendar_C1CalendarView_DropDownOpening_remarks"><strong>Remarks</strong></h5>
<div class="markdown level0 remarks"><p>A drop-down may be the editor of a year, era, or month.</p>
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