# C1.Blazor.Calendar.C1Calendar.OnSelectionChanged

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<h1 id="C1_Blazor_Calendar_C1Calendar_OnSelectionChanged_" data-uid="C1.Blazor.Calendar.C1Calendar.OnSelectionChanged*">OnSelectionChanged Property
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<a id="C1_Blazor_Calendar_C1Calendar_OnSelectionChanged_" data-uid="C1.Blazor.Calendar.C1Calendar.OnSelectionChanged*"></a>
<h4 id="C1_Blazor_Calendar_C1Calendar_OnSelectionChanged" data-uid="C1.Blazor.Calendar.C1Calendar.OnSelectionChanged">OnSelectionChanged</h4>
<div class="markdown level1 summary"><p>Gets or sets the callback that is called when the value is changed.</p>
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<h5 class="declaration">Declaration</h5>
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  <pre><code class="lang-csharp hljs">[Parameter]
public EventHandler&lt;CalendarSelectionChangedEventArgs&gt; OnSelectionChanged { get; set; }</code></pre>
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  <pre><code class="lang-vbnet hljs">&lt;Parameter&gt;
Public Property OnSelectionChanged As EventHandler(Of CalendarSelectionChangedEventArgs)</code></pre>
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