# C1.LiveLinq.Indexing.Index-2.FindSingle

## Content

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<h1 id="C1_LiveLinq_Indexing_Index_2_FindSingle_" data-uid="C1.LiveLinq.Indexing.Index`2.FindSingle*">FindSingle Method
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<div class="markdown level0 conceptual"></div>



<a id="C1_LiveLinq_Indexing_Index_2_FindSingle_" data-uid="C1.LiveLinq.Indexing.Index`2.FindSingle*"></a>
<h4 id="C1_LiveLinq_Indexing_Index_2_FindSingle__1_" data-uid="C1.LiveLinq.Indexing.Index`2.FindSingle(`1)">FindSingle(TKey)</h4>
<div class="markdown level1 summary"><p>Finds the only item with the specified key value and throws an exception if there is not exactly one item with that key value.</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 virtual T FindSingle(TKey key)</code></pre>
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  <pre><code class="lang-vbnet hljs">Public Overridable Function FindSingle(key As TKey) As T</code></pre>
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<h5 class="parameters">Parameters</h5>
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      <th>Type</th>
      <th>Name</th>
      <th>Description</th>
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    <tr>
      <td><span class="xref">TKey</span></td>
      <td><span class="parametername">key</span></td>
      <td><p>The key value to search for.</p>
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    </tr>
  </tbody>
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<h5 class="returns">Returns</h5>
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  <thead>
    <tr>
      <th>Type</th>
      <th>Description</th>
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  </thead>
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    <tr>
      <td><span class="xref">T</span></td>
      <td><p>The item of the collection that contains the specified key value, if found.</p>
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    </tr>
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