# C1.C1Preview.C1PrintDocument.OnDefaultUnitChanged

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<h1 id="C1_C1Preview_C1PrintDocument_OnDefaultUnitChanged_" data-uid="C1.C1Preview.C1PrintDocument.OnDefaultUnitChanged*">OnDefaultUnitChanged Method
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<h4 id="C1_C1Preview_C1PrintDocument_OnDefaultUnitChanged" data-uid="C1.C1Preview.C1PrintDocument.OnDefaultUnitChanged">OnDefaultUnitChanged()</h4>
<div class="markdown level1 summary"><p>Called when the <a class="xref" href="C1.C1Preview.C1PrintDocument.DefaultUnit.html#C1_C1Preview_C1PrintDocument_DefaultUnit">DefaultUnit</a> property value has changed.</p>
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<h5 class="declaration">Declaration</h5>
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  <pre><code class="lang-csharp hljs">protected virtual void OnDefaultUnitChanged()</code></pre>
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  <pre><code class="lang-vbnet hljs">Protected Overridable Sub OnDefaultUnitChanged()</code></pre>
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