# C1.Data.DataSource.ClientCollectionView.PageChanging

## Content

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<h1 id="C1_Data_DataSource_ClientCollectionView_PageChanging" data-uid="C1.Data.DataSource.ClientCollectionView.PageChanging" class="text-break">PageChanging Event
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<div class="markdown level0 summary"><p>Occurs before changing the <a class="xref" href="C1.Data.DataSource.ClientCollectionView.PageIndex.html#C1_Data_DataSource_ClientCollectionView_PageIndex">PageIndex</a>.</p>
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<div class="markdown level0 conceptual"></div>
<h6><strong>Namespace</strong>: <a class="xref" href="C1.Data.DataSource.html">C1.Data.DataSource</a></h6>
<h6><strong>Assembly</strong>: C1.Data.Entity.4.8.dll</h6>
<h5 id="C1_Data_DataSource_ClientCollectionView_PageChanging_syntax">Syntax</h5>
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  <pre><code class="lang-csharp hljs">public event EventHandler&lt;PageChangingEventArgs&gt; PageChanging</code></pre>
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  <pre><code class="lang-vbnet hljs">Public Event PageChanging As EventHandler(Of PageChangingEventArgs)</code></pre>
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<h5 class="returns">Returns</h5>
<table class="table table-bordered table-condensed">
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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.Data.PageChangingEventArgs.html">PageChangingEventArgs</a>&gt;</td>
      <td>Occurs before changing the .</td>
    </tr>
  </tbody>
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<h5 id="C1_Data_DataSource_ClientCollectionView_PageChanging_remarks"><strong>Remarks</strong></h5>
<div class="markdown level0 remarks"><p>This event allows to cancel the ongoing <a class="xref" href="C1.Data.DataSource.ClientCollectionView.PageIndex.html#C1_Data_DataSource_ClientCollectionView_PageIndex">PageIndex</a> change by setting <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.componentmodel.canceleventargs.cancel">Cancel</a> to true.</p>
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