# FarPoint.Win.Chart.UndoRedoManager.UndoPerforming

## Content

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




<h1 id="FarPoint_Win_Chart_UndoRedoManager_UndoPerforming" data-uid="FarPoint.Win.Chart.UndoRedoManager.UndoPerforming" class="text-break">UndoPerforming Event
</h1>
<div class="markdown level0 summary"><p>Occurs when the undo action is performing, user can cancel this undo action.
Cancelled undo action are not added to redo list and are not removed
from undo list.</p>
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<div class="markdown level0 conceptual"></div>
<h6><strong>Namespace</strong>: <a class="xref" href="FarPoint.Win.Chart.html">FarPoint.Win.Chart</a></h6>
<h6><strong>Assembly</strong>: FarPoint.Win.Chart.dll</h6>
<h5 id="FarPoint_Win_Chart_UndoRedoManager_UndoPerforming_syntax">Syntax</h5>
<div class="codewrapper">
  <pre><code class="lang-csharp hljs">[Browsable(false)]
public event UndoRedoCancelEventHandler UndoPerforming</code></pre>
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<div class="codewrapper">
  <pre><code class="lang-vbnet hljs">&lt;Browsable(False)&gt;
Public Event UndoPerforming As UndoRedoCancelEventHandler</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>
  </thead>
  <tbody>
    <tr>
      <td><a class="xref" href="FarPoint.Win.Chart.UndoRedoCancelEventHandler.html">UndoRedoCancelEventHandler</a></td>
      <td>Occurs when the undo action is performing, user can cancel this undo action. Cancelled undo action are not added to redo list and are not removed from undo list.</td>
    </tr>
  </tbody>
</table>
</div>