# C1.Schedule.DayCollection.GetKeyForItem

## Content

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<h1 id="C1_Schedule_DayCollection_GetKeyForItem_" data-uid="C1.Schedule.DayCollection.GetKeyForItem*">GetKeyForItem Method
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<div class="markdown level0 conceptual"></div>



<a id="C1_Schedule_DayCollection_GetKeyForItem_" data-uid="C1.Schedule.DayCollection.GetKeyForItem*"></a>
<h4 id="C1_Schedule_DayCollection_GetKeyForItem_C1_Schedule_Day_" data-uid="C1.Schedule.DayCollection.GetKeyForItem(C1.Schedule.Day)">GetKeyForItem(Day)</h4>
<div class="markdown level1 summary"><p>Extracts the key from the specified element.</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 DateTime GetKeyForItem(Day item)</code></pre>
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  <pre><code class="lang-vbnet hljs">Protected Overrides Function GetKeyForItem(item As Day) As Date</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>
  <tbody>
    <tr>
      <td><a class="xref" href="C1.Schedule.Day.html">Day</a></td>
      <td><span class="parametername">item</span></td>
      <td><p>The element from which to extract the key.</p>
</td>
    </tr>
  </tbody>
</table>
<h5 class="returns">Returns</h5>
<table class="table table-bordered table-condensed">
  <thead>
    <tr>
      <th>Type</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><p>The key for the specified element.</p>
</td>
    </tr>
  </tbody>
</table>
<h5 class="overrides">Overrides</h5>
<div><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.collections.objectmodel.keyedcollection-2.getkeyforitem">KeyedCollection&lt;DateTime, Day&gt;.GetKeyForItem(Day)</a></div>
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