# FarPoint.Win.Chart.IChartSupportDataSource.GetDoubleValue

## Content

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<h1 id="FarPoint_Win_Chart_IChartSupportDataSource_GetDoubleValue_" data-uid="FarPoint.Win.Chart.IChartSupportDataSource.GetDoubleValue*">GetDoubleValue Method
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<div class="markdown level0 summary"></div>
<div class="markdown level0 conceptual"></div>



<a id="FarPoint_Win_Chart_IChartSupportDataSource_GetDoubleValue_" data-uid="FarPoint.Win.Chart.IChartSupportDataSource.GetDoubleValue*"></a>
<h4 id="FarPoint_Win_Chart_IChartSupportDataSource_GetDoubleValue_System_Int32_" data-uid="FarPoint.Win.Chart.IChartSupportDataSource.GetDoubleValue(System.Int32)">GetDoubleValue(int)</h4>
<div class="markdown level1 summary"><p>Gets the double value at the specified index.</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">double GetDoubleValue(int index)</code></pre>
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  <pre><code class="lang-vbnet hljs">Function GetDoubleValue(index As Integer) As Double</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 specified index.</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.double">double</a></td>
      <td><p>The double value of the data source at the specified index.</p>
</td>
    </tr>
  </tbody>
</table>
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