# C1.Document.INotifyCollection

## Content

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  <h1 id="C1_Document_INotifyCollection" data-uid="C1.Document.INotifyCollection" class="text-break">INotifyCollection Interface
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  <div class="markdown level0 summary"><p>Notifies listeners of dynamic changes, such as when items get added and removed.</p>
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  <div class="markdown level0 conceptual"></div>
  <h6><strong>Namespace</strong>: <a class="xref" href="C1.Document.html">C1.Document</a></h6>
  <h6><strong>Assembly</strong>: C1.Document.dll</h6>
  <h5 id="C1_Document_INotifyCollection_syntax">Syntax</h5>
  <div class="codewrapper">
    <pre><code class="lang-csharp hljs">public interface INotifyCollection</code></pre>
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  <div class="codewrapper">
    <pre><code class="lang-vbnet hljs">Public Interface INotifyCollection</code></pre>
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  <h3 id="events">Events
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  <table class="table table-bordered table-condensed">
    <thead>
      <tr>
        <th>Name</th>
        <th>Description</th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td id="C1_Document_INotifyCollection_CollectionChanged" data-uid="C1.Document.INotifyCollection.CollectionChanged">
          <a class="xref" href="C1.Document.INotifyCollection.CollectionChanged.html">CollectionChanged</a>
        </td>
        <td class="markdown level1 summary"><p>Occurs when a collection changed.</p>
</td>
      </tr>
      <tr>
        <td id="C1_Document_INotifyCollection_CollectionChanging" data-uid="C1.Document.INotifyCollection.CollectionChanging">
          <a class="xref" href="C1.Document.INotifyCollection.CollectionChanging.html">CollectionChanging</a>
        </td>
        <td class="markdown level1 summary"><p>Occurs when a collection about to be changed.</p>
</td>
      </tr>
    </tbody>
  </table>

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