or
<telerik:RadComboBox ID="ddlSourceSystem" runat="server" Width="250px" Height="220px" AllowCustomText="True" ShowToggleImage="True" CausesValidation="false" ShowMoreResultsBox="false" EnableLoadOnDemand="false" MarkFirstMatch="false" EnableVirtualScrolling="false" AutoPostBack="false"> <CollapseAnimation Type="OutQuint" Duration="200"></CollapseAnimation> </telerik:RadComboBox> <asp:RequiredFieldValidator runat="server" ID="rfvSourceSystem" ValidationGroup="accountValidation" ControlToValidate="ddlSourceSystem" ErrorMessage="Source System is required" InitialValue="" Text=""><img src="images/exclamation_red.png" width="16" height="16"/></asp:RequiredFieldValidator>window.opener.aspnetForm.MASKEDTEXTBOX_ID.set_value('0001234567);
The issue we're encountering is similar to the one described in this thread but it doesn't seem to have an answer.
http://www.telerik.com/community/forums/aspnet-ajax/input/getting-radmaskedtextbox-client-object-on-other-page.aspx
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="Default" %><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head runat="server"> <title></title> <telerik:RadStyleSheetManager id="RadStyleSheetManager1" runat="server" /> <link href="CSS/style.css" rel="stylesheet" type="text/css" /></head><body> <form id="form1" runat="server"> <asp:ScriptManager ID="ScriptManager" runat="server"> <Scripts> <asp:ScriptReference Assembly="Telerik.Web.UI" Name="Telerik.Web.UI.Common.Core.js" /> <asp:ScriptReference Assembly="Telerik.Web.UI" Name="Telerik.Web.UI.Common.jQuery.js" /> <asp:ScriptReference Assembly="Telerik.Web.UI" Name="Telerik.Web.UI.Common.jQueryInclude.js" /> </Scripts> </asp:ScriptManager> <telerik:RadScriptBlock ID="RadScriptBlock1" runat="server"> <script type="text/javascript"> $(document).ready(function() { // Wait for the HTML to finish loading. var resize = function() { var height = $(window).height(); // Get the height of the browser window area. var element = $("form"); // Find the element to resize. element.height(height); // Set the element's height. } resize(); $(window).bind("resize", resize); }); function showPageView(sender, eventArgs) { var clientId = "<%= RadMultiPage1.ClientID %>"; var multipage = $find(clientId); if (eventArgs.get_item().get_value() != null) { alert(eventArgs.get_item().get_value()); var pageView = multipage.findPageViewByID(eventArgs.get_item().get_value()); if (pageView) pageView.set_selected(true); } } </script> </telerik:RadScriptBlock> <telerik:RadAjaxManager ID="RadAjaxManager1" runat="server"> </telerik:RadAjaxManager> <div id="mainWrapper"> <div id="pageWrapper"> <div id="topWelcomeBanner"> <div id="welcomebox"> <a target="_blank" href="http://www.mercer.com:80/regredirect.htm?siteLanguage=100">Register on our site</a> <font style="color:#0057A6">|</font> <a target="_blank" href="https://clients.haifc.com">Log in to Client Portal</a> </div> </div> <div id="masthead"> <a href=""> <img border="0" src="images/mercer_logo_175x24.gif" name="cmp_img_global_header_logo" alt="Mercer" title="Mercer"/> </a> <div align="right" style="font-size:10px" class="piller1"> <a href=""> <img border="0" src="images/mercer_pillars_new.gif" name="cmp_img_global_header_logo" alt="Consulting. 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