# GrapeCity.Spreadsheet.UI.UIManager.OnRowVisibilityChanged

## Content

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<h1 id="GrapeCity_Spreadsheet_UI_UIManager_OnRowVisibilityChanged_" data-uid="GrapeCity.Spreadsheet.UI.UIManager.OnRowVisibilityChanged*">OnRowVisibilityChanged Method
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<div class="markdown level0 summary"></div>
<div class="markdown level0 conceptual"></div>



<a id="GrapeCity_Spreadsheet_UI_UIManager_OnRowVisibilityChanged_" data-uid="GrapeCity.Spreadsheet.UI.UIManager.OnRowVisibilityChanged*"></a>
<h4 id="GrapeCity_Spreadsheet_UI_UIManager_OnRowVisibilityChanged_GrapeCity_Spreadsheet_IWorksheet_System_Int32_System_Int32_System_Boolean_" data-uid="GrapeCity.Spreadsheet.UI.UIManager.OnRowVisibilityChanged(GrapeCity.Spreadsheet.IWorksheet,System.Int32,System.Int32,System.Boolean)">OnRowVisibilityChanged(IWorksheet, int, int, bool)</h4>
<div class="markdown level1 summary"><p>Row visibility is 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 abstract void OnRowVisibilityChanged(IWorksheet worksheet, int row, int row2, bool fireEvent)</code></pre>
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  <pre><code class="lang-vbnet hljs">Protected MustOverride Sub OnRowVisibilityChanged(worksheet As IWorksheet, row As Integer, row2 As Integer, fireEvent As Boolean)</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>
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    <tr>
      <td><a class="xref" href="GrapeCity.Spreadsheet.IWorksheet.html">IWorksheet</a></td>
      <td><span class="parametername">worksheet</span></td>
      <td><p>A <a class="xref" href="GrapeCity.Spreadsheet.IWorksheet.html">IWorksheet</a> indicates the worksheet contains changed rows.</p>
</td>
    </tr>
    <tr>
      <td><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.int32">int</a></td>
      <td><span class="parametername">row</span></td>
      <td><p>An integer value indicates the top row index of cell range.</p>
</td>
    </tr>
    <tr>
      <td><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.int32">int</a></td>
      <td><span class="parametername">row2</span></td>
      <td><p>An integer value indicates the bottom row index of cell range.</p>
</td>
    </tr>
    <tr>
      <td><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.boolean">bool</a></td>
      <td><span class="parametername">fireEvent</span></td>
      <td></td>
    </tr>
  </tbody>
</table>
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