# C1.LiveLinq.Indexing.Subindex-1

## Content

<div class="doc-site-dotnet-api-container">



  <h1 id="C1_LiveLinq_Indexing_Subindex_1" data-uid="C1.LiveLinq.Indexing.Subindex`1" class="text-break">Subindex&lt;T&gt; Class
</h1>
  <div class="markdown level0 summary"><p>Base class for the <a class="xref" href="C1.LiveLinq.Indexing.Subindex-2.html">Subindex&lt;T, TKey&gt;</a> class.</p>
</div>
  <div class="markdown level0 conceptual"></div>
  <div class="inheritance">
    <h5>Inheritance</h5>
    <div class="level0"><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.object">object</a></div>
    <div class="level1"><a class="xref" href="C1.LiveLinq.Indexing.IndexDefinition-1.html">IndexDefinition</a>&lt;T&gt;</div>
    <div class="level2"><span class="xref">Subindex&lt;T&gt;</span></div>
      <div class="level3"><a class="xref" href="C1.LiveLinq.Indexing.Subindex-2.html">Subindex</a>&lt;T, TKey&gt;</div>
  </div>
  <h6><strong>Namespace</strong>: <a class="xref" href="C1.LiveLinq.Indexing.html">C1.LiveLinq.Indexing</a></h6>
  <h6><strong>Assembly</strong>: C1.LiveLinq.4.8.dll</h6>
  <h5 id="C1_LiveLinq_Indexing_Subindex_1_syntax">Syntax</h5>
  <div class="codewrapper">
    <pre><code class="lang-csharp hljs">public abstract class Subindex&lt;T&gt; : IndexDefinition&lt;T&gt;</code></pre>
  </div>
  <div class="codewrapper">
    <pre><code class="lang-vbnet hljs">Public MustInherit Class Subindex(Of T)
    Inherits IndexDefinition(Of T)</code></pre>
  </div>
  <h5 class="typeParameters">Type Parameters</h5>
  <table class="table table-bordered table-condensed">
    <thead>
      <tr>
        <th>Name</th>
        <th>Description</th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td><span class="parametername">T</span></td>
        <td><p>The type of the elements of the collection to index.</p>
</td>
      </tr>
    </tbody>
  </table>
  <h5 id="C1_LiveLinq_Indexing_Subindex_1_remarks"><strong>Remarks</strong></h5>
  <div class="markdown level0 remarks"><p>You don't typically use the <a class="xref" href="C1.LiveLinq.Indexing.Subindex-1.html">Subindex&lt;T&gt;</a> class directly. It provides functionality of the <a class="xref" href="C1.LiveLinq.Indexing.Subindex-2.html">Subindex&lt;T, TKey&gt;</a> class that does not depend on the
index key type. The base class <a class="xref" href="C1.LiveLinq.Indexing.Subindex-1.html">Subindex&lt;T&gt;</a> is needed only if the index key type is not known, usually in general-purpose code intended for reuse with different key types.</p>
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  <h3 id="properties">Properties
</h3>
  <table class="table table-bordered table-condensed">
    <thead>
      <tr>
        <th>Name</th>
        <th>Description</th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td id="C1_LiveLinq_Indexing_Subindex_1_Parent" data-uid="C1.LiveLinq.Indexing.Subindex`1.Parent">
          <a class="xref" href="C1.LiveLinq.Indexing.Subindex-1.Parent.html#C1_LiveLinq_Indexing_Subindex_1_Parent">Parent</a>
        </td>
        <td class="markdown level1 summary"><p>Parent of this subindex definition in the index/subindexes hierarchy.</p>
</td>
      </tr>
    </tbody>
  </table>
  <h3 id="extensionmethods">Extension Methods</h3>
  <div>
      <a class="xref" href="C1.LiveLinq.Hints.Indexed.html#C1_LiveLinq_Hints_Indexed__1___0_">Hints.Indexed&lt;T&gt;(T)</a>
  </div>
  <div>
      <a class="xref" href="C1.LiveLinq.Hints.Indexed.html#C1_LiveLinq_Hints_Indexed__1___0_C1_LiveLinq_IndexingHintAction_">Hints.Indexed&lt;T&gt;(T, IndexingHintAction)</a>
  </div>

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