# GrapeCity.Wpf.SpreadSheet.CellType.Editors.DateFieldCollection.SetItem

## Content

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



<a id="GrapeCity_Wpf_SpreadSheet_CellType_Editors_DateFieldCollection_SetItem_" data-uid="GrapeCity.Wpf.SpreadSheet.CellType.Editors.DateFieldCollection.SetItem*"></a>
<h4 id="GrapeCity_Wpf_SpreadSheet_CellType_Editors_DateFieldCollection_SetItem_System_Int32_GrapeCity_Wpf_SpreadSheet_CellType_Editors_DateField_" data-uid="GrapeCity.Wpf.SpreadSheet.CellType.Editors.DateFieldCollection.SetItem(System.Int32,GrapeCity.Wpf.SpreadSheet.CellType.Editors.DateField)">SetItem(int, DateField)</h4>
<div class="markdown level1 summary"><p>Replaces the element at the specified index.</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 override void SetItem(int index, DateField item)</code></pre>
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  <pre><code class="lang-vbnet hljs">Protected Overrides Sub SetItem(index As Integer, item As DateField)</code></pre>
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<h5 class="parameters">Parameters</h5>
<table class="table table-bordered table-condensed">
  <thead>
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      <th>Type</th>
      <th>Name</th>
      <th>Description</th>
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    <tr>
      <td><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.int32">int</a></td>
      <td><span class="parametername">index</span></td>
      <td><p>The zero-based index of the element to replace.</p>
</td>
    </tr>
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      <td><a class="xref" href="GrapeCity.Wpf.SpreadSheet.CellType.Editors.DateField.html">DateField</a></td>
      <td><span class="parametername">item</span></td>
      <td><p>The new value for the element at the specified index.</p>
</td>
    </tr>
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<h5 class="overrides">Overrides</h5>
<div><a class="xref" href="GrapeCity.Wpf.SpreadSheet.CellType.Editors.NotifyCollection-1.SetItem.html#GrapeCity_Wpf_SpreadSheet_CellType_Editors_NotifyCollection_1_SetItem_System_Int32__0_">NotifyCollection&lt;DateField&gt;.SetItem(int, DateField)</a></div>
<h5 class="exceptions">Exceptions</h5>
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  <thead>
    <tr>
      <th>Type</th>
      <th>Condition</th>
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      <td><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.invalidoperationexception">InvalidOperationException</a></td>
      <td><p>When set the <a class="xref" href="GrapeCity.Wpf.SpreadSheet.CellType.Editors.DateField.html">DateField</a> of the same function to the collection,
e.g. the a <a class="xref" href="GrapeCity.Wpf.SpreadSheet.CellType.Editors.DateYearField.html">DateYearField</a> is in the collection, you cannot change another field to either <a class="xref" href="GrapeCity.Wpf.SpreadSheet.CellType.Editors.DateEraField.html">DateEraField</a> or <a class="xref" href="GrapeCity.Wpf.SpreadSheet.CellType.Editors.DateEraYearField.html">DateEraYearField</a>.</p>
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