# C1.Blazor.Input.C1MaskedTextBox.OnMaskFormatChanged

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<h1 id="C1_Blazor_Input_C1MaskedTextBox_OnMaskFormatChanged_" data-uid="C1.Blazor.Input.C1MaskedTextBox.OnMaskFormatChanged*">OnMaskFormatChanged Property
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<h4 id="C1_Blazor_Input_C1MaskedTextBox_OnMaskFormatChanged" data-uid="C1.Blazor.Input.C1MaskedTextBox.OnMaskFormatChanged">OnMaskFormatChanged</h4>
<div class="markdown level1 summary"><p>/// Occurs when consistent content that conforms to the <a class="xref" href="C1.Blazor.Input.C1MaskedTextBox.MaskFormat.html#C1_Blazor_Input_C1MaskedTextBox_MaskFormat">MaskFormat</a> changes.
Gets or sets the callback called when the MaskFormat is changed.</p>
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<h5 class="declaration">Declaration</h5>
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  <pre><code class="lang-csharp hljs">[Parameter]
public EventCallback&lt;MaskFormatChangedEventArgs&gt; OnMaskFormatChanged { get; set; }</code></pre>
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  <pre><code class="lang-vbnet hljs">&lt;Parameter&gt;
Public Property OnMaskFormatChanged As EventCallback(Of MaskFormatChangedEventArgs)</code></pre>
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