csharp
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gui-cs.Terminal.Gui
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    <title>Interface IListDataSource
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            <article class="content wrap" id="_content" data-uid="Terminal.Gui.IListDataSource">
  
  
  <h1 id="Terminal_Gui_IListDataSource" data-uid="Terminal.Gui.IListDataSource" class="text-break">Interface IListDataSource
  </h1>
  <div class="markdown level0 summary">
Implement <a class="xref" href="Terminal.Gui.IListDataSource.html">IListDataSource</a> to provide custom rendering for a <a class="xref" href="Terminal.Gui.ListView.html">ListView</a>.
</div>
  <div class="markdown level0 conceptual"></div>
  <h6><strong>Namespace</strong>: <a class="xref" href="Terminal.Gui.html">Terminal.Gui</a></h6>
  <h6><strong>Assembly</strong>: Terminal.Gui.dll</h6>
  <h5 id="Terminal_Gui_IListDataSource_syntax">Syntax</h5>
  <div class="codewrapper">
    <pre><code class="lang-csharp hljs">public interface IListDataSource</code></pre>
  </div>
  <h3 id="properties">Properties
  </h3>
  <a id="Terminal_Gui_IListDataSource_Count_" data-uid="Terminal.Gui.IListDataSource.Count*"></a>
  <h4 id="Terminal_Gui_IListDataSource_Count" data-uid="Terminal.Gui.IListDataSource.Count">Count</h4>
  <div class="markdown level1 summary">
Returns the number of elements to display
</div>
  <div class="markdown level1 conceptual"></div>
  <h5 class="decalaration">Declaration</h5>
  <div class="codewrapper">
    <pre><code class="lang-csharp hljs">int Count { get; }</code></pre>
  </div>
  <h5 class="propertyValue">Property Value</h5>
  <table class="table table-bordered table-striped table-condensed">
    <thead>
      <tr>
        <th>Type</th>
        <th>Description</th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td><span class="xref">System.Int32</span></td>
        <td></td>
      </tr>
    </tbody>
  </table>
  <a id="Terminal_Gui_IListDataSource_Length_" data-uid="Terminal.Gui.IListDataSource.Length*"></a>
  <h4 id="Terminal_Gui_IListDataSource_Length" data-uid="Terminal.Gui.IListDataSource.Length">Length</h4>
  <div class="markdown level1 summary">
Returns the maximum length of elements to display
</div>
  <div class="markdown level1 conceptual"></div>
  <h5 class="decalaration">Declaration</h5>
  <div class="codewrapper">
    <pre><code class="lang-csharp hljs">int Length { get; }</code></pre>
  </div>
  <h5 class="propertyValue">Property Value</h5>
  <table class="table table-bordered table-striped table-condensed">
    <thead>
      <tr>
        <th>Type</th>
        <th>Description</th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td><span class="xref">System.Int32</span></td>
        <td></td>
      </tr>
    </tbody>
  </table>
  <h3 id="methods">Methods
  </h3>
  <a id="Terminal_Gui_IListDataSource_IsMarked_" data-uid="Terminal.Gui.IListDataSource.IsMarked*"></a>
  <h4 id="Terminal_Gui_IListDataSource_IsMarked_System_Int32_" data-uid="Terminal.Gui.IListDataSource.IsMarked(System.Int32)">IsMarked(Int32)</h4>
  <div class="markdown level1 summary">
Should return whether the specified item is currently marked.
</div>
  <div class="markdown level1 conceptual"></div>
  <h5 class="decalaration">Declaration</h5>
  <div class="codewrapper">
    <pre><code class="lang-csharp hljs">bool IsMarked(int item)</code></pre>
  </div>
  <h5 class="parameters">Parameters</h5>
  <table class="table table-bordered table-striped table-condensed">
    <thead>
      <tr>
        <th>Type</th>
        <th>Name</th>
        <th>Description</th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td><span class="xref">System.Int32</span></td>
        <td><span class="parametername">item</span></td>
        <td>Item index.</td>
      </tr>
    </tbody>
  </table>
  <h5 class="returns">Returns</h5>
  <table class="table table-bordered table-striped table-condensed">
    <thead>
      <tr>
        <th>Type</th>
        <th>Description</th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td><span class="xref">System.Boolean</span></td>
        <td><code>true</code>, if marked, <code>false</code> otherwise.</td>
      </tr>
    </tbody>
  </table>
  <a id="Terminal_Gui_IListDataSource_Render_" data-uid="Terminal.Gui.IListDataSource.Render*"></a>
  <h4 id="Terminal_Gui_IListDataSource_Render_Terminal_Gui_ListView_Terminal_Gui_ConsoleDriver_System_Boolean_System_Int32_System_Int32_System_Int32_System_Int32_System_Int32_" data-uid="Terminal.Gui.IListDataSource.Render(Terminal.Gui.ListView,Terminal.Gui.ConsoleDriver,System.Boolean,System.Int32,System.Int32,System.Int32,System.Int32,System.Int32)">Render(ListView, ConsoleDriver, Boolean, Int32, Int32, Int32, Int32, Int32)</h4>
  <div class="markdown level1 summary">
This method is invoked to render a specified item, the method should cover the entire provided width.
</div>
  <div class="markdown level1 conceptual"></div>
  <h5 class="decalaration">Declaration</h5>
  <div class="codewrapper">
    <pre><code class="lang-csharp hljs">void Render(ListView container, ConsoleDriver driver, bool selected, int item, int col, int line, int width, int start = 0)</code></pre>
  </div>
  <h5 class="parameters">Parameters</h5>
  <table class="table table-bordered table-striped table-condensed">
    <thead>
      <tr>
        <th>Type</th>
        <th>Name</th>
        <th>Description</th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td><a class="xref" href="Terminal.Gui.ListView.html">ListView</a></td>
        <td><span class="parametername">container</span></td>
        <td>The list view to render.</td>
      </tr>
      <tr>
        <td><a class="xref" href="Terminal.Gui.ConsoleDriver.html">ConsoleDriver</a></td>
        <td><span class="parametername">driver</span></td>
        <td>The console driver to render.</td>
      </tr>
      <tr>
        <td><span class="xref">System.Boolean</span></td>
        <td><span class="parametername">selected</span></td>
        <td>Describes whether the item being rendered is currently selected by the user.</td>
      </tr>
      <tr>
        <td><span class="xref">System.Int32</span></td>
        <td><span class="parametername">item</span></td>
        <td>The index of the item to render, zero for the first item and so on.</td>
      </tr>
      <tr>
        <td><span class="xref">System.Int32</span></td>
        <td><span class="parametername">col</span></td>
        <td>The column where the rendering will start</td>
      </tr>
      <tr>
        <td><span class="xref">System.Int32</span></td>
        <td><span class="parametername">line</span></td>
        <td>The line where the rendering will be done.</td>
      </tr>
      <tr>
        <td><span class="xref">System.Int32</span></td>
        <td><span class="parametername">width</span></td>
        <td>The width that must be filled out.</td>
      </tr>
      <tr>
        <td><span class="xref">System.Int32</span></td>
        <td><span class="parametername">start</span></td>
        <td>The index of the string to be displayed.</td>
      </tr>
    </tbody>
  </table>
  <h5 id="Terminal_Gui_IListDataSource_Render_Terminal_Gui_ListView_Terminal_Gui_ConsoleDriver_System_Boolean_System_Int32_System_Int32_System_Int32_System_Int32_System_Int32__remarks">Remarks</h5>
  <div class="markdown level1 remarks">
The default color will be set before this method is invoked, and will be based on whether the item is selected or not.
</div>
  <a id="Terminal_Gui_IListDataSource_SetMark_" data-uid="Terminal.Gui.IListDataSource.SetMark*"></a>
  <h4 id="Terminal_Gui_IListDataSource_SetMark_System_Int32_System_Boolean_" data-uid="Terminal.Gui.IListDataSource.SetMark(System.Int32,System.Boolean)">SetMark(Int32, Boolean)</h4>
  <div class="markdown level1 summary">
Flags the item as marked.
</div>
  <div class="markdown level1 conceptual"></div>
  <h5 class="decalaration">Declaration</h5>
  <div class="codewrapper">
    <pre><code class="lang-csharp hljs">void SetMark(int item, bool value)</code></pre>
  </div>
  <h5 class="parameters">Parameters</h5>
  <table class="table table-bordered table-striped table-condensed">
    <thead>
      <tr>
        <th>Type</th>
        <th>Name</th>
        <th>Description</th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td><span class="xref">System.Int32</span></td>
        <td><span class="parametername">item</span></td>
        <td>Item index.</td>
      </tr>
      <tr>
        <td><span class="xref">System.Boolean</span></td>
        <td><span class="parametername">value</span></td>
        <td>If set to <code>true</code> value.</td>
      </tr>
    </tbody>
  </table>
  <a id="Terminal_Gui_IListDataSource_ToList_" data-uid="Terminal.Gui.IListDataSource.ToList*"></a>
  <h4 id="Terminal_Gui_IListDataSource_ToList" data-uid="Terminal.Gui.IListDataSource.ToList">ToList()</h4>
  <div class="markdown level1 summary">
Return the source as IList.
</div>
  <div class="markdown level1 conceptual"></div>
  <h5 class="decalaration">Declaration</h5>
  <div class="codewrapper">
    <pre><code class="lang-csharp hljs">IList ToList()</code></pre>
  </div>
  <h5 class="returns">Returns</h5>
  <table class="table table-bordered table-striped table-condensed">
    <thead>
      <tr>
        <th>Type</th>
        <th>Description</th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td><span class="xref">System.Collections.IList</span></td>
        <td></td>
      </tr>
    </tbody>
  </table>
</article>
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