# C1.Win.C1Chart.TrendLine.SeriesIndex

## Content

<div class="doc-site-dotnet-api-container">



<h1 id="C1_Win_C1Chart_TrendLine_SeriesIndex_" data-uid="C1.Win.C1Chart.TrendLine.SeriesIndex*">SeriesIndex Property
</h1>
<div class="markdown level0 summary"></div>
<div class="markdown level0 conceptual"></div>



<a id="C1_Win_C1Chart_TrendLine_SeriesIndex_" data-uid="C1.Win.C1Chart.TrendLine.SeriesIndex*"></a>
<h4 id="C1_Win_C1Chart_TrendLine_SeriesIndex" data-uid="C1.Win.C1Chart.TrendLine.SeriesIndex">SeriesIndex</h4>
<div class="markdown level1 summary"><p>Gets or sets the index of the data series that is used to calculate the TrendLine.</p>
</div>
<div class="markdown level1 conceptual"></div>
<h5 class="declaration">Declaration</h5>
<div class="codewrapper">
  <pre><code class="lang-csharp hljs">[TypeConverter(typeof(ct))]
public int SeriesIndex { get; set; }</code></pre>
</div>
<div class="codewrapper">
  <pre><code class="lang-vbnet hljs">&lt;TypeConverter(GetType(ct))&gt;
Public Property SeriesIndex As Integer</code></pre>
</div>
<h5 id="C1_Win_C1Chart_TrendLine_SeriesIndex_remarks">Remarks</h5>
<div class="markdown level1 remarks"><p>If the SeriesIndex value does not address a specific data series, then the TrendLine is not shown.</p>
</div>
<h5 id="C1_Win_C1Chart_TrendLine_SeriesIndex_seealso">See Also</h5>
<div class="seealso">
    <div><a class="xref" href="C1.Win.C1Chart.TrendLine.html">TrendLine</a></div>
</div>
</div>