# C1.Win.FlexGrid.C1FlexGridBase.RemoveOutdatedGroups

## Content

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<h1 id="C1_Win_FlexGrid_C1FlexGridBase_RemoveOutdatedGroups_" data-uid="C1.Win.FlexGrid.C1FlexGridBase.RemoveOutdatedGroups*">RemoveOutdatedGroups Method
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<h4 id="C1_Win_FlexGrid_C1FlexGridBase_RemoveOutdatedGroups" data-uid="C1.Win.FlexGrid.C1FlexGridBase.RemoveOutdatedGroups">RemoveOutdatedGroups()</h4>
<div class="markdown level1 summary"><p>Removes old groups from sorting.</p>
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<h5 class="declaration">Declaration</h5>
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  <pre><code class="lang-csharp hljs">public void RemoveOutdatedGroups()</code></pre>
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  <pre><code class="lang-vbnet hljs">Public Sub RemoveOutdatedGroups()</code></pre>
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