# C1.Win.C1Win7Pack.C1TaskDialog.SetDefaultRadioIndex

## Content

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<h1 id="C1_Win_C1Win7Pack_C1TaskDialog_SetDefaultRadioIndex_" data-uid="C1.Win.C1Win7Pack.C1TaskDialog.SetDefaultRadioIndex*">SetDefaultRadioIndex Method
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<div class="markdown level0 summary"></div>
<div class="markdown level0 conceptual"></div>



<a id="C1_Win_C1Win7Pack_C1TaskDialog_SetDefaultRadioIndex_" data-uid="C1.Win.C1Win7Pack.C1TaskDialog.SetDefaultRadioIndex*"></a>
<h4 id="C1_Win_C1Win7Pack_C1TaskDialog_SetDefaultRadioIndex_System_Int32_" data-uid="C1.Win.C1Win7Pack.C1TaskDialog.SetDefaultRadioIndex(System.Int32)">SetDefaultRadioIndex(int)</h4>
<div class="markdown level1 summary"><p>Sets the index of a radio button that will be selected by default.</p>
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<h5 class="declaration">Declaration</h5>
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  <pre><code class="lang-csharp hljs">public void SetDefaultRadioIndex(int radioButtonIndex)</code></pre>
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  <pre><code class="lang-vbnet hljs">Public Sub SetDefaultRadioIndex(radioButtonIndex As Integer)</code></pre>
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<h5 class="parameters">Parameters</h5>
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  <thead>
    <tr>
      <th>Type</th>
      <th>Name</th>
      <th>Description</th>
    </tr>
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  <tbody>
    <tr>
      <td><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.int32">int</a></td>
      <td><span class="parametername">radioButtonIndex</span></td>
      <td></td>
    </tr>
  </tbody>
</table>
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