# C1.Win.C1Chart.ChartData.OnDataChanged

## Content

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<h1 id="C1_Win_C1Chart_ChartData_OnDataChanged_" data-uid="C1.Win.C1Chart.ChartData.OnDataChanged*">OnDataChanged Method
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<div class="markdown level0 summary"></div>
<div class="markdown level0 conceptual"></div>



<a id="C1_Win_C1Chart_ChartData_OnDataChanged_" data-uid="C1.Win.C1Chart.ChartData.OnDataChanged*"></a>
<h4 id="C1_Win_C1Chart_ChartData_OnDataChanged_C1_Win_C1Chart_ChartDataEventArgs_" data-uid="C1.Win.C1Chart.ChartData.OnDataChanged(C1.Win.C1Chart.ChartDataEventArgs)">OnDataChanged(ChartDataEventArgs)</h4>
<div class="markdown level1 summary"><p>Called when an element of the data has changed.</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 virtual void OnDataChanged(ChartDataEventArgs e)</code></pre>
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  <pre><code class="lang-vbnet hljs">Protected Overridable Sub OnDataChanged(e As ChartDataEventArgs)</code></pre>
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<h5 class="parameters">Parameters</h5>
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      <th>Type</th>
      <th>Name</th>
      <th>Description</th>
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      <td><a class="xref" href="C1.Win.C1Chart.ChartDataEventArgs.html">ChartDataEventArgs</a></td>
      <td><span class="parametername">e</span></td>
      <td><p>A <a class="xref" href="C1.Win.C1Chart.ChartDataEventArgs.html">ChartDataEventArgs</a> that contains event data.</p>
</td>
    </tr>
  </tbody>
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