# C1.Win.GanttView.PredecessorCollection

## Content

<div class="doc-site-dotnet-api-container">



  <h1 id="C1_Win_GanttView_PredecessorCollection" data-uid="C1.Win.GanttView.PredecessorCollection" class="text-break">PredecessorCollection Class
</h1>
  <div class="markdown level0 summary"><p>Represents a collection of task predecessors.</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.objectmodel.collection-1">Collection</a>&lt;<a class="xref" href="C1.Win.GanttView.Predecessor.html">Predecessor</a>&gt;</div>
    <div class="level2"><span class="xref">PredecessorCollection</span></div>
  </div>
  <div class="implements">
    <h5>Implements</h5>
    <div><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.collections.generic.ilist-1">IList</a>&lt;<a class="xref" href="C1.Win.GanttView.Predecessor.html">Predecessor</a>&gt;</div>
    <div><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.collections.generic.icollection-1">ICollection</a>&lt;<a class="xref" href="C1.Win.GanttView.Predecessor.html">Predecessor</a>&gt;</div>
    <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.generic.ireadonlylist-1">IReadOnlyList</a>&lt;<a class="xref" href="C1.Win.GanttView.Predecessor.html">Predecessor</a>&gt;</div>
    <div><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.collections.generic.ireadonlycollection-1">IReadOnlyCollection</a>&lt;<a class="xref" href="C1.Win.GanttView.Predecessor.html">Predecessor</a>&gt;</div>
    <div><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.collections.generic.ienumerable-1">IEnumerable</a>&lt;<a class="xref" href="C1.Win.GanttView.Predecessor.html">Predecessor</a>&gt;</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.GanttView.html">C1.Win.GanttView</a></h6>
  <h6><strong>Assembly</strong>: C1.Win.GanttView.10.dll</h6>
  <h5 id="C1_Win_GanttView_PredecessorCollection_syntax">Syntax</h5>
  <div class="codewrapper">
    <pre><code class="lang-csharp hljs">[ListBindable(false)]
public class PredecessorCollection : Collection&lt;Predecessor&gt;, IList&lt;Predecessor&gt;, ICollection&lt;Predecessor&gt;, IList, ICollection, IReadOnlyList&lt;Predecessor&gt;, IReadOnlyCollection&lt;Predecessor&gt;, IEnumerable&lt;Predecessor&gt;, IEnumerable</code></pre>
  </div>
  <div class="codewrapper">
    <pre><code class="lang-vbnet hljs">&lt;ListBindable(False)&gt;
Public Class PredecessorCollection
    Inherits Collection(Of Predecessor)
    Implements IList(Of Predecessor), ICollection(Of Predecessor), IList, ICollection, IReadOnlyList(Of Predecessor), IReadOnlyCollection(Of Predecessor), IEnumerable(Of Predecessor), IEnumerable</code></pre>
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  <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_GanttView_PredecessorCollection_ClearItems" data-uid="C1.Win.GanttView.PredecessorCollection.ClearItems">
          <a class="xref" href="C1.Win.GanttView.PredecessorCollection.ClearItems.html#C1_Win_GanttView_PredecessorCollection_ClearItems">ClearItems()</a>
        </td>
        <td class="markdown level1 summary"><p>Removes all items from the collection.</p>
</td>
      </tr>
      <tr>
        <td id="C1_Win_GanttView_PredecessorCollection_IndexOf_System_Int32_" data-uid="C1.Win.GanttView.PredecessorCollection.IndexOf(System.Int32)">
          <a class="xref" href="C1.Win.GanttView.PredecessorCollection.IndexOf.html#C1_Win_GanttView_PredecessorCollection_IndexOf_System_Int32_">IndexOf(int)</a>
        </td>
        <td class="markdown level1 summary"><p>Searches for the specified ID of the predecessor task and returns the zero-based index of the corresponding predecessor.</p>
</td>
      </tr>
      <tr>
        <td id="C1_Win_GanttView_PredecessorCollection_InsertItem_System_Int32_C1_Win_GanttView_Predecessor_" data-uid="C1.Win.GanttView.PredecessorCollection.InsertItem(System.Int32,C1.Win.GanttView.Predecessor)">
          <a class="xref" href="C1.Win.GanttView.PredecessorCollection.InsertItem.html#C1_Win_GanttView_PredecessorCollection_InsertItem_System_Int32_C1_Win_GanttView_Predecessor_">InsertItem(int, Predecessor)</a>
        </td>
        <td class="markdown level1 summary"><p>Inserts an item at the specified index.</p>
</td>
      </tr>
      <tr>
        <td id="C1_Win_GanttView_PredecessorCollection_RemoveItem_System_Int32_" data-uid="C1.Win.GanttView.PredecessorCollection.RemoveItem(System.Int32)">
          <a class="xref" href="C1.Win.GanttView.PredecessorCollection.RemoveItem.html#C1_Win_GanttView_PredecessorCollection_RemoveItem_System_Int32_">RemoveItem(int)</a>
        </td>
        <td class="markdown level1 summary"><p>Removes the item at the specified index.</p>
</td>
      </tr>
      <tr>
        <td id="C1_Win_GanttView_PredecessorCollection_Search_System_Int32_" data-uid="C1.Win.GanttView.PredecessorCollection.Search(System.Int32)">
          <a class="xref" href="C1.Win.GanttView.PredecessorCollection.Search.html#C1_Win_GanttView_PredecessorCollection_Search_System_Int32_">Search(int)</a>
        </td>
        <td class="markdown level1 summary"><p>Searches for a <a class="xref" href="C1.Win.GanttView.Predecessor.html">Predecessor</a> with the specified ID of the predecessor task.</p>
</td>
      </tr>
      <tr>
        <td id="C1_Win_GanttView_PredecessorCollection_SetItem_System_Int32_C1_Win_GanttView_Predecessor_" data-uid="C1.Win.GanttView.PredecessorCollection.SetItem(System.Int32,C1.Win.GanttView.Predecessor)">
          <a class="xref" href="C1.Win.GanttView.PredecessorCollection.SetItem.html#C1_Win_GanttView_PredecessorCollection_SetItem_System_Int32_C1_Win_GanttView_Predecessor_">SetItem(int, Predecessor)</a>
        </td>
        <td class="markdown level1 summary"><p>Replaces the item at the specified index.</p>
</td>
      </tr>
    </tbody>
  </table>

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