# C1.DataCollection.C1SequenceDataCollection-1.-ctor

## Content

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<h1 id="C1_DataCollection_C1SequenceDataCollection_1__ctor_" data-uid="C1.DataCollection.C1SequenceDataCollection`1.#ctor*">C1SequenceDataCollection Constructor
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<div class="markdown level0 conceptual"></div>



<a id="C1_DataCollection_C1SequenceDataCollection_1__ctor_" data-uid="C1.DataCollection.C1SequenceDataCollection`1.#ctor*"></a>
<h4 id="C1_DataCollection_C1SequenceDataCollection_1__ctor_System_Collections_Generic_IEnumerable_C1_DataCollection_IDataCollection__0___" data-uid="C1.DataCollection.C1SequenceDataCollection`1.#ctor(System.Collections.Generic.IEnumerable{C1.DataCollection.IDataCollection{`0}})">C1SequenceDataCollection(IEnumerable&lt;IDataCollection&lt;T&gt;&gt;?)</h4>
<div class="markdown level1 summary"><p>Initializes a new instance of the <a class="xref" href="C1.DataCollection.C1SequenceDataCollection-1.html">C1SequenceDataCollection&lt;T&gt;</a> class.</p>
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<h5 class="declaration">Declaration</h5>
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  <pre><code class="lang-csharp hljs">public C1SequenceDataCollection(IEnumerable&lt;IDataCollection&lt;T&gt;&gt;? collections = null)</code></pre>
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  <pre><code class="lang-vbnet hljs">Public Sub New(Optional collections As IEnumerable(Of IDataCollection(Of T)) = Nothing)</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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      <td><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.collections.generic.ienumerable-1">IEnumerable</a>&lt;<a class="xref" href="C1.DataCollection.IDataCollection-1.html">IDataCollection</a>&lt;T&gt;&gt;</td>
      <td><span class="parametername">collections</span></td>
      <td><p>A collection of data-collections that will appear as a single collection one after the other.</p>
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