# C1.Win.TreeView.C1TreeView.BeforeContextMenuShow

## Content

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<h1 id="C1_Win_TreeView_C1TreeView_BeforeContextMenuShow" data-uid="C1.Win.TreeView.C1TreeView.BeforeContextMenuShow" class="text-break">BeforeContextMenuShow Event
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<div class="markdown level0 summary"><p>Occurs before the context menu is shown.</p>
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<div class="markdown level0 conceptual"></div>
<h6><strong>Namespace</strong>: <a class="xref" href="C1.Win.TreeView.html">C1.Win.TreeView</a></h6>
<h6><strong>Assembly</strong>: C1.Win.TreeView.10.dll</h6>
<h5 id="C1_Win_TreeView_C1TreeView_BeforeContextMenuShow_syntax">Syntax</h5>
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  <pre><code class="lang-csharp hljs">public event EventHandler&lt;C1TreeViewCancelEventArgs&gt; BeforeContextMenuShow</code></pre>
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  <pre><code class="lang-vbnet hljs">Public Event BeforeContextMenuShow As EventHandler(Of C1TreeViewCancelEventArgs)</code></pre>
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<h5 class="returns">Returns</h5>
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      <th>Type</th>
      <th>Description</th>
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      <td><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.eventhandler-1">EventHandler</a>&lt;<a class="xref" href="C1.Win.TreeView.C1TreeViewCancelEventArgs.html">C1TreeViewCancelEventArgs</a>&gt;</td>
      <td>Occurs before the context menu is shown.</td>
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  </tbody>
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<h5 id="C1_Win_TreeView_C1TreeView_BeforeContextMenuShow_remarks"><strong>Remarks</strong></h5>
<div class="markdown level0 remarks"><p>Occurs only for ContextMenuStrip.</p>
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