# GrapeCity.Spreadsheet.ISheet.Protect

## Content

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<h1 id="GrapeCity_Spreadsheet_ISheet_Protect_" data-uid="GrapeCity.Spreadsheet.ISheet.Protect*">Protect Method
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<div class="markdown level0 conceptual"></div>



<a id="GrapeCity_Spreadsheet_ISheet_Protect_" data-uid="GrapeCity.Spreadsheet.ISheet.Protect*"></a>
<h4 id="GrapeCity_Spreadsheet_ISheet_Protect_System_String_" data-uid="GrapeCity.Spreadsheet.ISheet.Protect(System.String)">Protect(string)</h4>
<div class="markdown level1 summary"><p>Protects a sheet so that it cannot be modified.</p>
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<h5 class="declaration">Declaration</h5>
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  <pre><code class="lang-csharp hljs">bool Protect(string password = null)</code></pre>
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  <pre><code class="lang-vbnet hljs">Function Protect(Optional password As String = Nothing) As Boolean</code></pre>
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<h5 class="parameters">Parameters</h5>
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  <thead>
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      <th>Type</th>
      <th>Name</th>
      <th>Description</th>
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      <td><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.string">string</a></td>
      <td><span class="parametername">password</span></td>
      <td><p>A string that specifies a case-sensitive password for the sheet.</p>
</td>
    </tr>
  </tbody>
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<h5 class="returns">Returns</h5>
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  <thead>
    <tr>
      <th>Type</th>
      <th>Description</th>
    </tr>
  </thead>
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    <tr>
      <td><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.boolean">bool</a></td>
      <td><p><code>true</code> if the sheet is protected successful, <code>false</code> otherwise.</p>
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    </tr>
  </tbody>
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<h5 id="GrapeCity_Spreadsheet_ISheet_Protect_System_String__remarks">Remarks</h5>
<div class="markdown level1 remarks"><p>Note that support for <a class="xref" href="GrapeCity.Spreadsheet.WorksheetLocks.html">WorksheetLocks</a> is limited to reading and writing the OpenXML file. All options of <a class="xref" href="GrapeCity.Spreadsheet.WorksheetLocks.html">WorksheetLocks</a> have same effect in runtime.</p>
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