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POAfter Devexpress CallbackPanel PerformCallback, Ext Control isn't displayed
 

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    <p>I want to use Ext.Net controls inside devexpress callbackpanel. When page is rendered first everything is OK, Ext controls are fine. But, when you refresh the callbackpanel with <code>PerformCallback()</code> function Ext Controls disappears. What is the solution?</p> <pre><code>&lt;%@ Page Language="C#" AutoEventWireup="true" CodeBehind="default.aspx.cs" Inherits="devex_ext._default" %&gt; &lt;%@ Register Assembly="DevExpress.Web.v10.2, Version=10.2.3.0, Culture=neutral, PublicKeyToken=b88d1754d700e49a" Namespace="DevExpress.Web.ASPxCallbackPanel" TagPrefix="dx" %&gt; &lt;%@ Register Assembly="DevExpress.Web.v10.2, Version=10.2.3.0, Culture=neutral, PublicKeyToken=b88d1754d700e49a" Namespace="DevExpress.Web.ASPxTabControl" TagPrefix="dx" %&gt; &lt;%@ Register Assembly="DevExpress.Web.v10.2, Version=10.2.3.0, Culture=neutral, PublicKeyToken=b88d1754d700e49a" Namespace="DevExpress.Web.ASPxClasses" TagPrefix="dx" %&gt; &lt;%@ Register Assembly="DevExpress.Web.v10.2, Version=10.2.3.0, Culture=neutral, PublicKeyToken=b88d1754d700e49a" Namespace="DevExpress.Web.ASPxCallbackPanel" TagPrefix="dx" %&gt; &lt;%@ Register Assembly="DevExpress.Web.v10.2, Version=10.2.3.0, Culture=neutral, PublicKeyToken=b88d1754d700e49a" Namespace="DevExpress.Web.ASPxPanel" TagPrefix="dx" %&gt; &lt;%@ Register Assembly="Ext.Net" Namespace="Ext.Net" TagPrefix="ext" %&gt; &lt;!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"&gt; &lt;html xmlns="http://www.w3.org/1999/xhtml"&gt; &lt;head runat="server"&gt; &lt;title&gt;&lt;/title&gt; &lt;/head&gt; &lt;body&gt; &lt;form id="form1" runat="server"&gt; &lt;ext:ResourceManager ID="ResourceManager1" runat="server" /&gt; &lt;div style="clear:both"&gt; &lt;dx:ASPxCallbackPanel ID="ASPxCallbackPanel2" ClientInstanceName="cp" runat="server" Width="200px"&gt; &lt;PanelCollection&gt; &lt;dx:PanelContent ID="PanelContent2" runat="server"&gt; &lt;dx:ASPxPageControl ID="ASPxPageControl2" runat="server"&gt; &lt;TabPages&gt; &lt;dx:TabPage Text="Ext Linkbutton"&gt; &lt;ContentCollection&gt; &lt;dx:ContentControl ID="ContentControl1" runat="server"&gt; &lt;ext:LinkButton ID="Linkbutton1" runat="server" Text="Linkbutton"&gt; &lt;Listeners&gt; &lt;Click Handler="Ext.Msg.alert('Clicked', 'LinkButton');" /&gt; &lt;/Listeners&gt; &lt;/ext:LinkButton&gt; &lt;/dx:ContentControl&gt; &lt;/ContentCollection&gt; &lt;/dx:TabPage&gt; &lt;dx:TabPage Text="Asp Button"&gt; &lt;ContentCollection&gt; &lt;dx:ContentControl ID="ContentControl2" runat="server"&gt; &lt;asp:Button ID="Button1" runat="server" Text="Button" /&gt; &lt;/dx:ContentControl&gt; &lt;/ContentCollection&gt; &lt;/dx:TabPage&gt; &lt;/TabPages&gt; &lt;/dx:ASPxPageControl&gt; &lt;/dx:PanelContent&gt; &lt;/PanelCollection&gt; &lt;/dx:ASPxCallbackPanel&gt; &lt;ext:LinkButton ID="LinkButton2" runat="server" Text="Refresh"&gt; &lt;Listeners&gt; &lt;Click Handler="cp.PerformCallback()" /&gt; &lt;/Listeners&gt; &lt;/ext:LinkButton&gt; &lt;/div&gt; &lt;/form&gt; &lt;/body&gt; &lt;/html&gt; </code></pre>
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