# C1.DataCollection.C1SortDataCollection-1.GetSourceIndex

## Content

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<h1 id="C1_DataCollection_C1SortDataCollection_1_GetSourceIndex_" data-uid="C1.DataCollection.C1SortDataCollection`1.GetSourceIndex*">GetSourceIndex Method
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<div class="markdown level0 summary"></div>
<div class="markdown level0 conceptual"></div>



<a id="C1_DataCollection_C1SortDataCollection_1_GetSourceIndex_" data-uid="C1.DataCollection.C1SortDataCollection`1.GetSourceIndex*"></a>
<h4 id="C1_DataCollection_C1SortDataCollection_1_GetSourceIndex_System_Int32_" data-uid="C1.DataCollection.C1SortDataCollection`1.GetSourceIndex(System.Int32)">GetSourceIndex(int)</h4>
<div class="markdown level1 summary"><p>Gets the index of the item at the specified index in the source.</p>
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<div class="markdown level1 conceptual"></div>
<h5 class="declaration">Declaration</h5>
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  <pre><code class="lang-csharp hljs">protected int GetSourceIndex(int index)</code></pre>
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<div class="codewrapper">
  <pre><code class="lang-vbnet hljs">Protected Function GetSourceIndex(index As Integer) As Integer</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>
    </tr>
  </thead>
  <tbody>
    <tr>
      <td><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.int32">int</a></td>
      <td><span class="parametername">index</span></td>
      <td><p>The index in this collection</p>
</td>
    </tr>
  </tbody>
</table>
<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="https://learn.microsoft.com/dotnet/api/system.int32">int</a></td>
      <td><p>The index in the source.</p>
</td>
    </tr>
  </tbody>
</table>
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