# GrapeCity.Wpf.SpreadSheet.CellType.Editors.SelectedDatesCollection.AddRange

## Content

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<h1 id="GrapeCity_Wpf_SpreadSheet_CellType_Editors_SelectedDatesCollection_AddRange_" data-uid="GrapeCity.Wpf.SpreadSheet.CellType.Editors.SelectedDatesCollection.AddRange*">AddRange Method
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<div class="markdown level0 summary"></div>
<div class="markdown level0 conceptual"></div>



<a id="GrapeCity_Wpf_SpreadSheet_CellType_Editors_SelectedDatesCollection_AddRange_" data-uid="GrapeCity.Wpf.SpreadSheet.CellType.Editors.SelectedDatesCollection.AddRange*"></a>
<h4 id="GrapeCity_Wpf_SpreadSheet_CellType_Editors_SelectedDatesCollection_AddRange_System_DateTime_System_DateTime_" data-uid="GrapeCity.Wpf.SpreadSheet.CellType.Editors.SelectedDatesCollection.AddRange(System.DateTime,System.DateTime)">AddRange(DateTime, DateTime)</h4>
<div class="markdown level1 summary"><p>Adds all the dates in the specified range, which includes the first and last dates, to the collection.</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">public void AddRange(DateTime start, DateTime end)</code></pre>
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  <pre><code class="lang-vbnet hljs">Public Sub AddRange(start As Date, [end] As Date)</code></pre>
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<h5 class="parameters">Parameters</h5>
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  <thead>
    <tr>
      <th>Type</th>
      <th>Name</th>
      <th>Description</th>
    </tr>
  </thead>
  <tbody>
    <tr>
      <td><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.datetime">DateTime</a></td>
      <td><span class="parametername">start</span></td>
      <td><p>The first date to add to the collection.</p>
</td>
    </tr>
    <tr>
      <td><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.datetime">DateTime</a></td>
      <td><span class="parametername">end</span></td>
      <td><p>The last date to add to the collection.</p>
</td>
    </tr>
  </tbody>
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<h5 id="GrapeCity_Wpf_SpreadSheet_CellType_Editors_SelectedDatesCollection_AddRange_System_DateTime_System_DateTime__remarks">Remarks</h5>
<div class="markdown level1 remarks"><p>This implementation raises the <a class="xref" href="GrapeCity.Wpf.SpreadSheet.CellType.Editors.SelectedDatesCollection.CollectionChanged.html">CollectionChanged</a> event.
If the <code class="paramref">end</code> is earlier than <code class="paramref">start</code>, this method use the earlier as the first date and use the later one as the last date of the collection.</p>
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