CS/Default.aspx

﻿<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>

<%@ Register Assembly="DevExpress.Web.v15.1, Version=15.1.15.0, Culture=neutral, PublicKeyToken=b88d1754d700e49a"
	Namespace="DevExpress.Web" TagPrefix="dx" %>

<!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>
</head>
<body>
	<script type="text/javascript">		
		var iframeLoaded = false;
		function OnPopUp(s, e) {
			loadingPanel.Show();
		}
		function OnSelectedIndexChanged(s, e) {
			if (clientPopup.IsVisible())
				SetTbText();
			else clientPopup.Show();
		}
		function OnInit(s, e) {
			var iframe = s.GetContentIFrame();
			iframe.onload = function () {
				iframeLoaded = true;
				SetTbText();
			}
		}
		function OnShown(s, e) {
			if (iframeLoaded == true)
			SetTbText();
		}
		function SetTbText() {
			var contentIFrameWindow = clientPopup.GetContentIFrameWindow();
			var contentTextBox = contentIFrameWindow.clientTb;
			if (contentTextBox)
				contentTextBox.SetText(clientCmb.GetText());
			loadingPanel.Hide();
		}
	</script>
	<form id="form1" runat="server">
		<dx:ASPxLoadingPanel ID="ASPxLoadingPanel1" ClientInstanceName="loadingPanel" Modal="true" runat="server"></dx:ASPxLoadingPanel>
		<dx:ASPxComboBox ID="cmb" runat="server" ClientInstanceName="clientCmb">
			<Items>
				<dx:ListEditItem Text="DevExpress Home" Value="Home"></dx:ListEditItem>
				<dx:ListEditItem Text="DevExpress Support" Value="SC"></dx:ListEditItem>
				<dx:ListEditItem Text="DevExpress Search" Value="Search"></dx:ListEditItem>
			</Items>
			<ClientSideEvents SelectedIndexChanged="OnSelectedIndexChanged" />
		</dx:ASPxComboBox>
		<dx:ASPxPopupControl ID="popup" runat="server" ContentUrl="~/ContentPageWithTextBox.aspx"
			Top="100" ClientInstanceName="clientPopup" CloseAction="CloseButton">
			<ClientSideEvents Shown="OnShown" Init="OnInit" PopUp="OnPopUp"/>
		</dx:ASPxPopupControl>
	</form>
</body>
</html>