# C1.Maui.Core.MauiAppBuilderEx.RegisterCoreControls

## Content

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



<h1 id="C1_Maui_Core_MauiAppBuilderEx_RegisterCoreControls_" data-uid="C1.Maui.Core.MauiAppBuilderEx.RegisterCoreControls*">RegisterCoreControls Method
</h1>
<div class="markdown level0 summary"></div>
<div class="markdown level0 conceptual"></div>



<a id="C1_Maui_Core_MauiAppBuilderEx_RegisterCoreControls_" data-uid="C1.Maui.Core.MauiAppBuilderEx.RegisterCoreControls*"></a>
<h4 id="C1_Maui_Core_MauiAppBuilderEx_RegisterCoreControls_Microsoft_Maui_Hosting_MauiAppBuilder_" data-uid="C1.Maui.Core.MauiAppBuilderEx.RegisterCoreControls(Microsoft.Maui.Hosting.MauiAppBuilder)">RegisterCoreControls(MauiAppBuilder)</h4>
<div class="markdown level1 summary"><p>Registers .net core control.</p>
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<div class="markdown level1 conceptual"></div>
<h5 class="declaration">Declaration</h5>
<div class="codewrapper">
  <pre><code class="lang-csharp hljs">public static MauiAppBuilder RegisterCoreControls(this MauiAppBuilder appHostBuilder)</code></pre>
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<div class="codewrapper">
  <pre><code class="lang-vbnet hljs">Public Shared Function RegisterCoreControls(appHostBuilder As MauiAppBuilder) As MauiAppBuilder</code></pre>
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<h5 class="parameters">Parameters</h5>
<table class="table table-bordered table-condensed">
  <thead>
    <tr>
      <th>Type</th>
      <th>Name</th>
      <th>Description</th>
    </tr>
  </thead>
  <tbody>
    <tr>
      <td><span class="xref">MauiAppBuilder</span></td>
      <td><span class="parametername">appHostBuilder</span></td>
      <td><p>An instance of <span class="xref">Microsoft.Maui.Hosting.MauiAppBuilder</span>.</p>
</td>
    </tr>
  </tbody>
</table>
<h5 class="returns">Returns</h5>
<table class="table table-bordered table-condensed">
  <thead>
    <tr>
      <th>Type</th>
      <th>Description</th>
    </tr>
  </thead>
  <tbody>
    <tr>
      <td><span class="xref">MauiAppBuilder</span></td>
      <td></td>
    </tr>
  </tbody>
</table>
<h5 class="exceptions">Exceptions</h5>
<table class="table table-bordered table-condensed">
  <thead>
    <tr>
      <th>Type</th>
      <th>Condition</th>
    </tr>
  </thead>
  <tbody>
    <tr>
      <td><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.argumentnullexception">ArgumentNullException</a></td>
      <td></td>
    </tr>
  </tbody>
</table>
</div>