# C1.WinUI.Core.C1Behavior-1.OnDetaching

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<h1 id="C1_WinUI_Core_C1Behavior_1_OnDetaching_" data-uid="C1.WinUI.Core.C1Behavior`1.OnDetaching*">OnDetaching Method
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<h4 id="C1_WinUI_Core_C1Behavior_1_OnDetaching" data-uid="C1.WinUI.Core.C1Behavior`1.OnDetaching">OnDetaching()</h4>
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<h5 class="declaration">Declaration</h5>
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  <pre><code class="lang-csharp hljs">protected override void OnDetaching()</code></pre>
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  <pre><code class="lang-vbnet hljs">Protected Overrides Sub OnDetaching()</code></pre>
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