# C1.DataCollection.C1DataCollectionEx

## Content

<div class="doc-site-dotnet-api-container">



  <h1 id="C1_DataCollection_C1DataCollectionEx" data-uid="C1.DataCollection.C1DataCollectionEx" class="text-break">C1DataCollectionEx Class
</h1>
  <div class="markdown level0 summary"><p>Extension methods for <a class="xref" href="C1.DataCollection.C1DataCollection-1.html">C1DataCollection&lt;T&gt;</a>.</p>
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  <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"><span class="xref">C1DataCollectionEx</span></div>
  </div>
  <h6><strong>Namespace</strong>: <a class="xref" href="C1.DataCollection.html">C1.DataCollection</a></h6>
  <h6><strong>Assembly</strong>: C1.DataCollection.dll</h6>
  <h5 id="C1_DataCollection_C1DataCollectionEx_syntax">Syntax</h5>
  <div class="codewrapper">
    <pre><code class="lang-csharp hljs">public static class C1DataCollectionEx</code></pre>
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  <div class="codewrapper">
    <pre><code class="lang-vbnet hljs">Public Module C1DataCollectionEx</code></pre>
  </div>
  <h3 id="methods">Methods
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  <table class="table table-bordered table-condensed">
    <thead>
      <tr>
        <th>Name</th>
        <th>Description</th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td id="C1_DataCollection_C1DataCollectionEx_FilterAsync__1_C1_DataCollection_C1DataCollection___0__System_Linq_Expressions_Expression_System_Func___0_System_Object___C1_DataCollection_FilterOperation_System_Object_" data-uid="C1.DataCollection.C1DataCollectionEx.FilterAsync``1(C1.DataCollection.C1DataCollection{``0},System.Linq.Expressions.Expression{System.Func{``0,System.Object}},C1.DataCollection.FilterOperation,System.Object)">
          <a class="xref" href="C1.DataCollection.C1DataCollectionEx.FilterAsync.html#C1_DataCollection_C1DataCollectionEx_FilterAsync__1_C1_DataCollection_C1DataCollection___0__System_Linq_Expressions_Expression_System_Func___0_System_Object___C1_DataCollection_FilterOperation_System_Object_">FilterAsync&lt;T&gt;(C1DataCollection&lt;T&gt;, Expression&lt;Func&lt;T, object&gt;&gt;, FilterOperation, object)</a>
        </td>
        <td class="markdown level1 summary"><p>Filters the data using specified filter parameters.</p>
</td>
      </tr>
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        <td id="C1_DataCollection_C1DataCollectionEx_GroupAsync__1_C1_DataCollection_C1DataCollection___0__System_Linq_Expressions_Expression_System_Func___0_System_Object___" data-uid="C1.DataCollection.C1DataCollectionEx.GroupAsync``1(C1.DataCollection.C1DataCollection{``0},System.Linq.Expressions.Expression{System.Func{``0,System.Object}})">
          <a class="xref" href="C1.DataCollection.C1DataCollectionEx.GroupAsync.html#C1_DataCollection_C1DataCollectionEx_GroupAsync__1_C1_DataCollection_C1DataCollection___0__System_Linq_Expressions_Expression_System_Func___0_System_Object___">GroupAsync&lt;T&gt;(C1DataCollection&lt;T&gt;, Expression&lt;Func&lt;T, object&gt;&gt;)</a>
        </td>
        <td class="markdown level1 summary"><p>Groups the data collection according to the specified group path.</p>
</td>
      </tr>
      <tr>
        <td id="C1_DataCollection_C1DataCollectionEx_IsOneOf_System_Object___System_Object_" data-uid="C1.DataCollection.C1DataCollectionEx.IsOneOf(System.Object[],System.Object)">
          <a class="xref" href="C1.DataCollection.C1DataCollectionEx.IsOneOf.html#C1_DataCollection_C1DataCollectionEx_IsOneOf_System_Object___System_Object_">IsOneOf(object?[]?, object?)</a>
        </td>
        <td class="markdown level1 summary"><p>Determines whether the specified element is one of the items in the array.</p>
</td>
      </tr>
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        <td id="C1_DataCollection_C1DataCollectionEx_SortAsync__1_C1_DataCollection_C1DataCollection___0__System_Linq_Expressions_Expression_System_Func___0_System_Object___C1_DataCollection_SortDirection_" data-uid="C1.DataCollection.C1DataCollectionEx.SortAsync``1(C1.DataCollection.C1DataCollection{``0},System.Linq.Expressions.Expression{System.Func{``0,System.Object}},C1.DataCollection.SortDirection)">
          <a class="xref" href="C1.DataCollection.C1DataCollectionEx.SortAsync.html#C1_DataCollection_C1DataCollectionEx_SortAsync__1_C1_DataCollection_C1DataCollection___0__System_Linq_Expressions_Expression_System_Func___0_System_Object___C1_DataCollection_SortDirection_">SortAsync&lt;T&gt;(C1DataCollection&lt;T&gt;, Expression&lt;Func&lt;T, object&gt;&gt;, SortDirection)</a>
        </td>
        <td class="markdown level1 summary"><p>Sorts the data collection according to the specified sort path and direction.</p>
</td>
      </tr>
    </tbody>
  </table>

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