# C1.C1Preview.EventCollection.OnClear

## Content

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<h1 id="C1_C1Preview_EventCollection_OnClear_" data-uid="C1.C1Preview.EventCollection.OnClear*">OnClear Method
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<h4 id="C1_C1Preview_EventCollection_OnClear" data-uid="C1.C1Preview.EventCollection.OnClear">OnClear()</h4>
<div class="markdown level1 summary"><p>Called when the collection is about to be cleared.
Fires the <a class="xref" href="C1.C1Preview.EventCollection.Changing.html">Changing</a> event.</p>
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<h5 class="declaration">Declaration</h5>
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  <pre><code class="lang-csharp hljs">protected override void OnClear()</code></pre>
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  <pre><code class="lang-vbnet hljs">Protected Overrides Sub OnClear()</code></pre>
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<h5 class="overrides">Overrides</h5>
<div><a class="xref" href="C1.C1Preview.OwnedCollection.OnClear.html#C1_C1Preview_OwnedCollection_OnClear">OwnedCollection.OnClear()</a></div>
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