# C1.Win.List.C1DataColumnCollection

## Content

<div class="doc-site-dotnet-api-container">



  <h1 id="C1_Win_List_C1DataColumnCollection" data-uid="C1.Win.List.C1DataColumnCollection" class="text-break">C1DataColumnCollection Class
</h1>
  <div class="markdown level0 summary"><p>Contains a collection of <a class="xref" href="C1.Win.List.C1DataColumn.html">C1DataColumn</a> objects.</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="https://learn.microsoft.com/dotnet/api/system.collections.collectionbase">CollectionBase</a></div>
    <div class="level2"><span class="xref">C1DataColumnCollection</span></div>
      <div class="level3"><a class="xref" href="C1.Win.List.SelectedColumnCollection.html">SelectedColumnCollection</a></div>
  </div>
  <div class="implements">
    <h5>Implements</h5>
    <div><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.collections.ilist">IList</a></div>
    <div><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.collections.icollection">ICollection</a></div>
    <div><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.collections.ienumerable">IEnumerable</a></div>
  </div>
  <h6><strong>Namespace</strong>: <a class="xref" href="C1.Win.List.html">C1.Win.List</a></h6>
  <h6><strong>Assembly</strong>: C1.Win.List.4.8.dll</h6>
  <h5 id="C1_Win_List_C1DataColumnCollection_syntax">Syntax</h5>
  <div class="codewrapper">
    <pre><code class="lang-csharp hljs">public class C1DataColumnCollection : CollectionBase, IList, ICollection, IEnumerable</code></pre>
  </div>
  <div class="codewrapper">
    <pre><code class="lang-vbnet hljs">Public Class C1DataColumnCollection
    Inherits CollectionBase
    Implements IList, ICollection, IEnumerable</code></pre>
  </div>
  <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_Win_List_C1DataColumnCollection_Item_System_Int32_" data-uid="C1.Win.List.C1DataColumnCollection.Item(System.Int32)">
          <a class="xref" href="C1.Win.List.C1DataColumnCollection.Item.html#C1_Win_List_C1DataColumnCollection_Item_System_Int32_">this[int]</a>
        </td>
        <td class="markdown level1 summary"><p>Gets the specified C1DataColumn from the collection at the specified index.</p>
</td>
      </tr>
      <tr>
        <td id="C1_Win_List_C1DataColumnCollection_Item_System_String_" data-uid="C1.Win.List.C1DataColumnCollection.Item(System.String)">
          <a class="xref" href="C1.Win.List.C1DataColumnCollection.Item.html#C1_Win_List_C1DataColumnCollection_Item_System_String_">this[string]</a>
        </td>
        <td class="markdown level1 summary"><p>Gets the specified C1DataColumn from the collection with the specified name.</p>
</td>
      </tr>
    </tbody>
  </table>
  <h3 id="methods">Methods
</h3>
  <table class="table table-bordered table-condensed">
    <thead>
      <tr>
        <th>Name</th>
        <th>Description</th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td id="C1_Win_List_C1DataColumnCollection_Add_C1_Win_List_C1DataColumn_" data-uid="C1.Win.List.C1DataColumnCollection.Add(C1.Win.List.C1DataColumn)">
          <a class="xref" href="C1.Win.List.C1DataColumnCollection.Add.html#C1_Win_List_C1DataColumnCollection_Add_C1_Win_List_C1DataColumn_">Add(C1DataColumn)</a>
        </td>
        <td class="markdown level1 summary"><p>Adds a C1DataColumn to the end of the collection.</p>
</td>
      </tr>
      <tr>
        <td id="C1_Win_List_C1DataColumnCollection_Clear" data-uid="C1.Win.List.C1DataColumnCollection.Clear">
          <a class="xref" href="C1.Win.List.C1DataColumnCollection.Clear.html#C1_Win_List_C1DataColumnCollection_Clear">Clear()</a>
        </td>
        <td class="markdown level1 summary"><p>Removes all elements from the collection.</p>
</td>
      </tr>
      <tr>
        <td id="C1_Win_List_C1DataColumnCollection_IndexOf_C1_Win_List_C1DataColumn_" data-uid="C1.Win.List.C1DataColumnCollection.IndexOf(C1.Win.List.C1DataColumn)">
          <a class="xref" href="C1.Win.List.C1DataColumnCollection.IndexOf.html#C1_Win_List_C1DataColumnCollection_IndexOf_C1_Win_List_C1DataColumn_">IndexOf(C1DataColumn)</a>
        </td>
        <td class="markdown level1 summary"><p>Gets the index of the specified <a class="xref" href="C1.Win.List.C1DataColumn.html">C1DataColumn</a>.</p>
</td>
      </tr>
      <tr>
        <td id="C1_Win_List_C1DataColumnCollection_Insert_System_Int32_C1_Win_List_C1DataColumn_" data-uid="C1.Win.List.C1DataColumnCollection.Insert(System.Int32,C1.Win.List.C1DataColumn)">
          <a class="xref" href="C1.Win.List.C1DataColumnCollection.Insert.html#C1_Win_List_C1DataColumnCollection_Insert_System_Int32_C1_Win_List_C1DataColumn_">Insert(int, C1DataColumn)</a>
        </td>
        <td class="markdown level1 summary"><p>Inserts a <a class="xref" href="C1.Win.List.C1DataColumn.html">C1DataColumn</a> at the specified index.</p>
</td>
      </tr>
      <tr>
        <td id="C1_Win_List_C1DataColumnCollection_OnInsert_System_Int32_System_Object_" data-uid="C1.Win.List.C1DataColumnCollection.OnInsert(System.Int32,System.Object)">
          <a class="xref" href="C1.Win.List.C1DataColumnCollection.OnInsert.html#C1_Win_List_C1DataColumnCollection_OnInsert_System_Int32_System_Object_">OnInsert(int, object)</a>
        </td>
        <td class="markdown level1 summary"></td>
      </tr>
      <tr>
        <td id="C1_Win_List_C1DataColumnCollection_RemoveAt_System_Int32_" data-uid="C1.Win.List.C1DataColumnCollection.RemoveAt(System.Int32)">
          <a class="xref" href="C1.Win.List.C1DataColumnCollection.RemoveAt.html#C1_Win_List_C1DataColumnCollection_RemoveAt_System_Int32_">RemoveAt(int)</a>
        </td>
        <td class="markdown level1 summary"><p>Removes the C1DataColumn at the specified index.</p>
</td>
      </tr>
    </tbody>
  </table>

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