# C1.Document.NotifyCollectionEventHandler

## Content

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  <h1 id="C1_Document_NotifyCollectionEventHandler" data-uid="C1.Document.NotifyCollectionEventHandler" class="text-break">NotifyCollectionEventHandler Delegate
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  <div class="markdown level0 summary"><p>Represents a method that handles the <a class="xref" href="C1.Document.INotifyCollection.CollectionChanging.html">CollectionChanging</a> or <a class="xref" href="C1.Document.INotifyCollection.CollectionChanged.html">CollectionChanged</a> events.</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_NotifyCollectionEventHandler_syntax">Syntax</h5>
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    <pre><code class="lang-csharp hljs">public delegate void NotifyCollectionEventHandler(object sender, NotifyCollectionEventArgs e)</code></pre>
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    <pre><code class="lang-vbnet hljs">Public Delegate Sub NotifyCollectionEventHandler(sender As Object, e As NotifyCollectionEventArgs)</code></pre>
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  <h5 class="parameters">Parameters</h5>
  <table class="table table-bordered table-condensed">
    <thead>
      <tr>
        <th>Type</th>
        <th>Name</th>
        <th>Description</th>
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        <td><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.object">object</a></td>
        <td><span class="parametername">sender</span></td>
        <td><p>The object that raised the event.</p>
</td>
      </tr>
      <tr>
        <td><a class="xref" href="C1.Document.NotifyCollectionEventArgs.html">NotifyCollectionEventArgs</a></td>
        <td><span class="parametername">e</span></td>
        <td><p>Information about the event.</p>
</td>
      </tr>
    </tbody>
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  <h3 id="constructors">Constructors
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    <thead>
      <tr>
        <th>Name</th>
        <th>Description</th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td id="C1_Document_NotifyCollectionEventHandler__ctor_System_Object_System_IntPtr_" data-uid="C1.Document.NotifyCollectionEventHandler.#ctor(System.Object,System.IntPtr)">
          <a class="xref" href="C1.Document.NotifyCollectionEventHandler.-ctor.html#C1_Document_NotifyCollectionEventHandler__ctor_System_Object_System_IntPtr_">NotifyCollectionEventHandler(object, IntPtr)</a>
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        <td class="markdown level1 summary"></td>
      </tr>
    </tbody>
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  <h3 id="methods">Methods
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    <thead>
      <tr>
        <th>Name</th>
        <th>Description</th>
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        <td id="C1_Document_NotifyCollectionEventHandler_BeginInvoke_System_Object_C1_Document_NotifyCollectionEventArgs_System_AsyncCallback_System_Object_" data-uid="C1.Document.NotifyCollectionEventHandler.BeginInvoke(System.Object,C1.Document.NotifyCollectionEventArgs,System.AsyncCallback,System.Object)">
          <a class="xref" href="C1.Document.NotifyCollectionEventHandler.BeginInvoke.html#C1_Document_NotifyCollectionEventHandler_BeginInvoke_System_Object_C1_Document_NotifyCollectionEventArgs_System_AsyncCallback_System_Object_">BeginInvoke(object, NotifyCollectionEventArgs, AsyncCallback, object)</a>
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        <td class="markdown level1 summary"></td>
      </tr>
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        <td id="C1_Document_NotifyCollectionEventHandler_EndInvoke_System_IAsyncResult_" data-uid="C1.Document.NotifyCollectionEventHandler.EndInvoke(System.IAsyncResult)">
          <a class="xref" href="C1.Document.NotifyCollectionEventHandler.EndInvoke.html#C1_Document_NotifyCollectionEventHandler_EndInvoke_System_IAsyncResult_">EndInvoke(IAsyncResult)</a>
        </td>
        <td class="markdown level1 summary"></td>
      </tr>
      <tr>
        <td id="C1_Document_NotifyCollectionEventHandler_Invoke_System_Object_C1_Document_NotifyCollectionEventArgs_" data-uid="C1.Document.NotifyCollectionEventHandler.Invoke(System.Object,C1.Document.NotifyCollectionEventArgs)">
          <a class="xref" href="C1.Document.NotifyCollectionEventHandler.Invoke.html#C1_Document_NotifyCollectionEventHandler_Invoke_System_Object_C1_Document_NotifyCollectionEventArgs_">Invoke(object, NotifyCollectionEventArgs)</a>
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        <td class="markdown level1 summary"></td>
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    </tbody>
  </table>

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