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Conflict between ASP.Net AJAX RadComboBox and Silverlight RadChart

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ComboBox

This is a migrated thread and some comments may be shown as answers.

Wes asked on 02 Feb 2011, 01:16 AM

I am currently testing out Trial versions of the ASP.Net AJAX Rad Controls and the RadControls for Silverlight. I have the following in the Visual Studio 2010 project

Silverlight 4 Application (SL App) with a RadChart in it.
ASP.Net User Control with a reference to the the SL app: <object data="data:application/x-silverlight-2," ...> ... </object>
Master Page including the RadScriptManager
ASP.Net form with related RadComboBoxes and the above user control

I was trying to refresh the RadChart in the SL App with value from the selected values in the ASP.Net AJAX RadComboboxes. I figured out how to pass parameters to the SL App. However, with the SL App present on the page, the RadComboBoxes do not drop down. Is this a known issue? Is there a fix or a workaround?

I've attached a simpler version of the project for your reference. The outcome is the same whether I use a Master Page or not.
Thank you,

Wes C.

MASTER PAGE

<%@ Master Language="VB" AutoEventWireup="false" CodeBehind="Site.master.vb" Inherits="Teacher_Effectiveness.Site" %>

<%@ Register Assembly="Telerik.Web.UI" Namespace="Telerik.Web.UI" TagPrefix="telerik" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">

<head runat="server">

<title></title>

<link href="~/Styles/Site.css" rel="stylesheet" type="text/css" />

<asp:ContentPlaceHolder ID="HeadScript" runat="server">

</asp:ContentPlaceHolder>

</head>

<body>

<form runat="server" id="MasterForm">

<telerik:RadScriptManager ID="RadScriptMgr" runat="server">

</telerik:RadScriptManager>

<div class="page">

<div class="header">

<asp:ContentPlaceHolder ID="HeadContent" runat="server">

<div class="title">

<h1>

Teacher Effectiveness

</h1>

</div>

<div class="loginDisplay">

<asp:LoginView ID="HeadLoginView" runat="server" EnableViewState="false">

<AnonymousTemplate>

[ <a href="~/Account/Login.aspx" ID="HeadLoginStatus" runat="server">Log In</a> ]

</AnonymousTemplate>

<LoggedInTemplate>

Welcome <span class="bold">

<asp:LoginName ID="HeadLoginName" runat="server" />

</span>!

[

<asp:LoginStatus ID="HeadLoginStatus" runat="server" LogoutAction="Redirect" LogoutText="Log Out" LogoutPageUrl="~/"/>

]

</LoggedInTemplate>

</asp:LoginView>

</div>

<div class="clear hideSkiplink">

<asp:Menu ID="NavigationMenu" runat="server" CssClass="menu" EnableViewState="false" IncludeStyleBlock="false" Orientation="Horizontal">

<Items>

<asp:MenuItem NavigateUrl="~/Index.aspx" Text="Home"/>

<asp:MenuItem NavigateUrl="~/About.aspx" Text="About"/>

</Items>

</asp:Menu>

</div>

</asp:ContentPlaceHolder>

</div>

<div class="main">

<asp:contentPlaceHolder ID="ContentHeader" runat="server">

</asp:contentPlaceHolder>

<asp:ContentPlaceHolder ID="ContentMain" runat="server">

</asp:ContentPlaceHolder>

</div>

<div class="clear">

</div>

<div class="footer">

</div>

<asp:ContentPlaceHolder ID="Script" runat="server">

</asp:ContentPlaceHolder>

</form>

</body>

</html>

TEST.ASPX

<%@ Page Title="" Language="vb" AutoEventWireup="false" MasterPageFile="~/Site.Master" CodeBehind="Test.aspx.vb" Inherits="Teacher_Effectiveness.Test" %>

<%@ Register Assembly="Telerik.Web.UI" Namespace="Telerik.Web.UI" TagPrefix="telerik" %>

<%@ Register TagPrefix="chart" TagName="chart" src="User_Control/Results_By_Achievement_Level.ascx" %>

<asp:Content ID="Content4" ContentPlaceHolderID="ContentMain" runat="server">

<telerik:RadComboBox ID="RadComboBox1" runat="server">

</telerik:RadComboBox>

<chart:chart ID="pie" runat="server" />

</asp:Content>

TEST.VB

Imports Telerik.Web.UI

Public Class Test

Inherits System.Web.UI.Page

Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load

If Not Page.IsPostBack Then

Me.RadComboBox1.Items.Add(New RadComboBoxItem("1"))

Me.RadComboBox1.Items.Add(New RadComboBoxItem("2"))

Me.RadComboBox1.Items.Add(New RadComboBoxItem("3"))

Me.RadComboBox1.Items.Add(New RadComboBoxItem("4"))

End If

End Sub

End Class

Results_By_Achievement_Level.ascx

<%@ Control Language="vb" AutoEventWireup="false" CodeBehind="Results_By_Achievement_Level.ascx.vb" Inherits="Teacher_Effectiveness.Results_By_Achievement_Level" %>

<script type="text/javascript">

function onSilverlightError(sender, args) {

var appSource = "";

if (sender != null && sender != 0) {

appSource = sender.getHost().Source;

}

var errorType = args.ErrorType;

var iErrorCode = args.ErrorCode;

if (errorType == "ImageError" ||

errorType == "MediaError") {

return;

}

var errMsg = "Unhandled Error in Silverlight Application "

+ appSource + "\n";

errMsg += "Code: " + iErrorCode + " \n";

errMsg += "Category: " + errorType + " \n";

errMsg += "Message: " + args.ErrorMessage + " \n";

if (errorType == "ParserError") {

errMsg += "File: " + args.xamlFile + " \n";

errMsg += "Line: " + args.lineNumber + " \n";

errMsg += "Position: " + args.charPosition + " \n";

}

else if (errorType == "RuntimeError") {

if (args.lineNumber != 0) {

errMsg += "Line: " + args.lineNumber + " \n";

errMsg += "Position: " + args.charPosition +

" \n";

}

errMsg += "MethodName: " + args.methodName + " \n";

}

throw new Error(errMsg);

}

</script>

<object id="piechart" data="data:application/x-silverlight-2," type="application/x-silverlight-2" width="400" height="400">

<param name="source" value="ClientBin/RadChart.xap"/>

<param name="onError" value="onSilverlightError" />

<param name="background" value="white" />

<param name="minRuntimeVersion" value="4.0.50401.0" />

<param name="uiculture" value="<%= System.Threading.Thread.CurrentThread.CurrentUICulture %>" />

<param name="culture" value="<%= System.Threading.Thread.CurrentThread.CurrentCulture %>" />

<param name="autoUpgrade" value="true" />

</object><iframe id="_sl_historyFrame" style="visibility:hidden;height:0px;width:0px;border:0px"/>

Conflict between ASP.Net AJAX RadComboBox and Silverlight RadChart

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