# C1.Web.Mvc.FlexGridBase-1.OnClientItemsSourceChanging

## Content

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<h1 id="C1_Web_Mvc_FlexGridBase_1_OnClientItemsSourceChanging_" data-uid="C1.Web.Mvc.FlexGridBase`1.OnClientItemsSourceChanging*">OnClientItemsSourceChanging Property
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<a id="C1_Web_Mvc_FlexGridBase_1_OnClientItemsSourceChanging_" data-uid="C1.Web.Mvc.FlexGridBase`1.OnClientItemsSourceChanging*"></a>
<h4 id="C1_Web_Mvc_FlexGridBase_1_OnClientItemsSourceChanging" data-uid="C1.Web.Mvc.FlexGridBase`1.OnClientItemsSourceChanging">OnClientItemsSourceChanging</h4>
<div class="markdown level1 summary"><p>Occurs after the grid has been bound to a new items source.</p>
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<h5 class="declaration">Declaration</h5>
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  <pre><code class="lang-csharp hljs">public string OnClientItemsSourceChanging { get; set; }</code></pre>
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  <pre><code class="lang-vbnet hljs">Public Property OnClientItemsSourceChanging As String</code></pre>
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