JavaScript error when programatically opening panels in UI for ASP.NET AJAX

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JavaScript error when programatically opening panels

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PanelBar

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

Hector asked on 06 May 2010, 07:45 PM

Hello. I have created a page with a PanelBar and three RadPanelItems. I am using the code from one of the samples where only one panel is opened and the other two disabled. You fill out text boxes and you click on the Next button and it will close the current panel, enable and open the next panel. When the next panel is opened, I am getting the following JS error:
An invalid or illegal string was specified" code: "12 Break on this error }h.insertRule(f[b]+"}",b+1);
This is only hapenning on firefox
It seems like it is injecting CSS code into the styles. Here is my code:

ASPX:

    
            <%@ Page Title="" Language="C#" MasterPageFile="~/MSD.Master" AutoEventWireup="true" 
        
                Theme="AdGeo" CodeBehind="MemberRegistration.aspx.cs" Inherits="MSD_web.MemberRegistration" %> 
        
            <%@ Register Assembly="Telerik.Web.UI" Namespace="Telerik.Web.UI" TagPrefix="telerik" %> 
        
            <asp:Content ID="Content1" ContentPlaceHolderID="HeadHolder" runat="server"> 
        
            <script type="text/javascript"> 
        
                function ValidateCombo(source, arguments) { 
        
                    var panelbar = $find("<%= RadPanelBar1.ClientID %>"); 
        
                    var item = panelbar.findItemByValue("AccountInformation"); 
        
                    var secretQuestion = item.findControl("cmbSecretQuestion"); 
        
                    if (secretQuestion._text == 'Choose a secret question ->') 
        
                        arguments.IsValid = false; 
        
                    else 
        
                                arguments.IsValid = true; 
        
                } 
        
            </script> 
        
            </asp:Content> 
        
            <asp:Content ID="Content4" ContentPlaceHolderID="MainContentPlaceHolder" runat="server"> 
        
                <telerik:RadAjaxPanel ID="RadAjaxPanel1" runat="server" > 
        
                    <telerik:RadPanelBar runat="server" ID="RadPanelBar1" ExpandMode="SingleExpandedItem" 
        
                        Width="740px" Skin="Forest" > 
        
                        <Items> 
        
                            <telerik:RadPanelItem Expanded="True" Text="Step 1: Account Information" runat="server" 
        
                                Selected="true"> 
        
                                <Items> 
        
                                    <telerik:RadPanelItem Value="AccountInformation"  runat="server"> 
        
                                        <ItemTemplate> 
        
                                            <div class="text" style="background-color: #edf9fe"> 
        
                                                <ul class="formList" id="accountInfo"> 
        
                                                    <li> 
        
                                                        <asp:Label ID="FirstNameLabel" runat="server" AssociatedControlID="FirstName" CssClass="formLabel">First Name*:Account Name:</asp:Label> 
        
                                                        <telerik:RadTextBox ID="FirstName" runat="server" EmptyMessage="Your first name" Width="200px" 
        
                                                            Skin="AdGeo" EnableEmbeddedSkins="false"  > 
        
                                                        </telerik:RadTextBox> 
        
                                                        <asp:RequiredFieldValidator ID="RequiredFieldValidator3" runat="server" ControlToValidate="FirstName" 
        
                                                            CssClass="error" ErrorMessage="First Name is required." ToolTip="First Name is required." 
        
                                                            ValidationGroup="SubmitGroup">*</asp:RequiredFieldValidator> 
        
                                                    </li> 
        
                                                    <li> 
        
                                                        <asp:Label ID="LastNameLabel" runat="server" AssociatedControlID="LastName" CssClass="formLabel">Last Name*:Password:</asp:Label> 
        
                                                        <telerik:RadTextBox ID="LastName" runat="server" EmptyMessage="Enter last name" Skin="AdGeo" 
        
                                                            EnableEmbeddedSkins="false" Width="200px" > 
        
                                                        </telerik:RadTextBox> 
        
                                                        <asp:RequiredFieldValidator ID="RequiredFieldValidator4" runat="server" ControlToValidate="LastName" 
        
                                                            CssClass="error" ErrorMessage="Last Name is required." ToolTip="Last Name is required." 
        
                                                            ValidationGroup="SubmitGroup">*</asp:RequiredFieldValidator> 
        
                                                    </li> 
        
                                                    <li> 
        
                                                        <asp:Label ID="EmailLabel" runat="server" AssociatedControlID="Email" CssClass="formLabel">E-mail address*:Confirm Password:</asp:Label> 
        
                                                        <telerik:RadTextBox ID="Email" runat="server" EmptyMessage="Enter e-mail address" 
        
                                                            Skin="AdGeo" EnableEmbeddedSkins="false" Width="200px" > 
        
                                                        </telerik:RadTextBox> 
        
                                                        <asp:RequiredFieldValidator ID="EmailRequired" runat="server" ControlToValidate="Email" 
        
                                                            CssClass="error" ErrorMessage="E-mail is required." ToolTip="E-mail is required." 
        
                                                            ValidationGroup="SubmitGroup">*</asp:RequiredFieldValidator> 
        
                                                    </li> 
        
                                                    <li> 
        
                                                        <asp:Label ID="PhoneLabel" runat="server" AssociatedControlID="Phone" CssClass="formLabel">Phone number:Email:</asp:Label> 
        
                                                        <telerik:RadMaskedTextBox ID="Phone" runat="server" Mask="(###) ###-####" Width="200px" 
        
                                                            Skin="AdGeo" EnableEmbeddedSkins="false"> 
        
                                                        </telerik:RadMaskedTextBox> 
        
                                                    </li> 
        
                                                    <li> 
        
                                                        <asp:Label ID="CellPhoneLable" runat="server" AssociatedControlID="CellPhone" CssClass="formLabel">Cell Phone:</asp:Label> 
        
                                                        <telerik:RadMaskedTextBox ID="CellPhone" runat="server" Mask="(###) ###-####" Width="200px" 
        
                                                            Skin="AdGeo" EnableEmbeddedSkins="false"> 
        
                                                        </telerik:RadMaskedTextBox> 
        
                                                    </li> 
        
                                                    <li> 
        
                                                        <asp:Label ID="Label10" runat="server" AssociatedControlID="cmbSecretQuestion" CssClass="formLabel">Security Question*:</asp:Label> 
        
                                                        <telerik:RadComboBox ID="cmbSecretQuestion" runat="server" Style="margin-right: 5px;" 
        
                                                            Skin="AdGeo" EnableEmbeddedSkins="false" Width="200px" 
        
                                                            BorderColor="#000066" BorderWidth="1px" MaxHeight="100px"> 
        
                                                            <ExpandAnimation Type="Linear" /> 
        
                                                            <Items> 
        
                                                                <telerik:RadComboBoxItem Text="Choose a secret question ->" Value="" /> 
        
                                                                <telerik:RadComboBoxItem Text="What is your mother's maiden name?" /> 
        
                                                                <telerik:RadComboBoxItem Text="What year did you graduate from high school?" /> 
        
                                                                <telerik:RadComboBoxItem Text="What was your highschool's mascot?" /> 
        
                                                                <telerik:RadComboBoxItem Text="What was your first pet's name?" /> 
        
                                                                <telerik:RadComboBoxItem Text="What was your first car?" /> 
        
                                                                <telerik:RadComboBoxItem Text="Where was your father born?" /> 
        
                                                            </Items> 
        
                                                        </telerik:RadComboBox> 
        
                                                        <asp:CustomValidator ID="CustomValidator4" runat="server" ControlToValidate="cmbSecretQuestion" 
        
                                                            ErrorMessage="Please choose a secret question." ToolTip="Secret question is required." 
        
                                                            ValidationGroup="SubmitGroup" CssClass="error" 
        
                                                            ClientValidationFunction="ValidateCombo">*</asp:CustomValidator> 
        
                                                    </li> 
        
                                                    <li> 
        
                                                            <asp:Label ID="Label11" runat="server" AssociatedControlID="SecretAnswer" CssClass="formLabel">Security Answer*:</asp:Label> 
        
                                                            <telerik:RadTextBox ID="SecretAnswer" runat="server" TextMode="SingleLine" Skin="AdGeo" 
        
                                                                EnableEmbeddedSkins="false" Width="200px" > 
        
                                                            </telerik:RadTextBox> 
        
                                                            <asp:RequiredFieldValidator ID="RequiredFieldValidator5" runat="server" ControlToValidate="SecretAnswer" 
        
                                                                ErrorMessage="Secret Answer is required." ToolTip="Secret answer is required." 
        
                                                                ValidationGroup="SubmitGroup" CssClass="error">*</asp:RequiredFieldValidator> 
        
                                                    </li> 
        
                                                </ul> 
        
                                                <br /> 
        
                                                <asp:ValidationSummary ID="ValidationSummary1" runat="server" Font-Italic="True" ValidationGroup="SubmitGroup" /> 
        
                                                <br /> 
        
                                                <asp:Literal ID="ErrorMessage" runat="server" EnableViewState="False"></asp:Literal> 
        
                                                <asp:Button runat="server" ID="nextButton" OnClick="nextButton_Click" Text="Next" 
        
                                                    CssClass="nextButton" ValidationGroup="SubmitGroup" /><br /> 
        
                                                <br /> 
        
                                            </div> 
        
                                        </ItemTemplate> 
        
                                    </telerik:RadPanelItem> 
        
                                </Items> 
        
                            </telerik:RadPanelItem> 
        
                            <telerik:RadPanelItem Expanded="false" Enabled="false" Text="Step 2: Options" runat="server" 
        
                                Selected="false"> 
        
                                <Items> 
        
                                    <telerik:RadPanelItem Value="AccountInformation" runat="server"> 
        
                                        <ItemTemplate> 
        
                                            <div class="text" style="background-color: #edf9fe"> 
        
                                                <ul class="formList" id="accountInfo"> 
        
                                                    <li> 
        
                                                        <asp:Label runat="server" ID="nameLabel" >Account Name:First Name*:</asp:Label> 
        
                                                    </li> 
        
                                                    <li> 
        
                                                        <asp:Label runat="server" ID="Label1" >Password:Last Name*:</asp:Label> 
        
                                                    </li> 
        
                                                    <li> 
        
                                                        <asp:Label runat="server" ID="Label2" >Confirm Password:E-mail address*:</asp:Label> 
        
                                                    </li> 
        
                                                    <li class="lastListItem"> 
        
                                                        <asp:Label runat="server" ID="Label3" >Email:Phone number:</asp:Label> 
        
                                                    </li> 
        
                                                    <li> 
        
                                                        <asp:Label ID="CellPhoneLable" runat="server" CssClass="formLabel">Cell Phone:</asp:Label> 
        
                                                    </li> 
        
                                                    <li> 
        
                                                        <asp:Label ID="Label10" runat="server" AssociatedControlID="cmbTimeRange"  
        
                                                            CssClass="formLabel">Best time to call:</asp:Label> 
        
                                                        <telerik:RadComboBox ID="cmbTimeRange" runat="server"  
        
                                                            BorderColor="#000066" BorderWidth="1px" EnableEmbeddedSkins="false"  
        
                                                            MaxHeight="100px" Skin="AdGeo" Style="margin-right: 5px;" Width="200px"> 
        
                                                            <ExpandAnimation Type="Linear" /> 
        
                                                            <Items> 
        
                                                                <telerik:RadComboBoxItem Text="Select your desired call time -&gt;" Value="" /> 
        
                                                                <telerik:RadComboBoxItem Text="6:00 AM to 8:00 AM" /> 
        
                                                                <telerik:RadComboBoxItem Text="8:00 AM to 10:00 AM" /> 
        
                                                                <telerik:RadComboBoxItem Text="10:00 AM to 12:00 PM" /> 
        
                                                                <telerik:RadComboBoxItem Text="12:00 PM to 2:00 PM" /> 
        
                                                                <telerik:RadComboBoxItem Text="2:00 PM to 4:00 PM" /> 
        
                                                                <telerik:RadComboBoxItem Text="4:00 PM to 6:00 PM" /> 
        
                                                                <telerik:RadComboBoxItem Text="6:00 PM to 8:00 PM" /> 
        
                                                                <telerik:RadComboBoxItem Text="8:00 PM to 10:00 PM" /> 
        
                                                                <telerik:RadComboBoxItem Text="10:00 PM to 12:00 AM" /> 
        
                                                            </Items> 
        
                                                        </telerik:RadComboBox> 
        
                                                    </li> 
        
                                                </ul> 
        
                                                <br /> 
        
                                                <asp:Literal ID="ErrorMessage" runat="server" EnableViewState="False"></asp:Literal> 
        
                                                <asp:Button runat="server" ID="nextButton" Text="Next" OnClick="nextButton_Click" CssClass="nextButton7"   /> 
        
                                                <br /> 
        
                                                <br /> 
        
                                                <br /> 
        
                                            </div> 
        
                                        </ItemTemplate> 
        
                                    </telerik:RadPanelItem> 
        
                                </Items> 
        
                            </telerik:RadPanelItem> 
        
                            <telerik:RadPanelItem Enabled="False" Text="Step 3: Terms of use" runat="server"> 
        
                                <Items> 
        
                                    <telerik:RadPanelItem Value="Register" runat="server"> 
        
                                        <ItemTemplate> 
        
                                            <div class="text" style="background-color: #edf9fe"> 
        
                                                <ul class="formList" id="termsOfUse"> 
        
                                                    <li class="lastListItem"> 
        
                                                        <img src="Images/terms.gif" alt="sample terms" width="550" height="224" /> 
        
                                                        <br /> 
        
                                                        <br /> 
        
                                                        <asp:CheckBox runat="server" ID="termsCheckBox" /><asp:Label ID="Label7" runat="server" 
        
                                                            CssClass="checkboxLabel" AssociatedControlID="termsCheckBox">I agree to the Terms &amp; Conditions</asp:Label> 
        
                                                        <asp:CustomValidator runat="server" ValidationGroup="registerGroup" ErrorMessage="You should agree with the terms and conditions.!" 
        
                                                            ClientValidationFunction="validateTerms" ID="termsValidator" Text="*" /> 
        
                                                        <br /> 
        
                                                        <asp:Button runat="server" ID="registerButton" ValidationGroup="registerGroup" Text="Register" 
        
                                                            CssClass="nextButton" /> 
        
                                                        <br /> 
        
                                                        <br /> 
        
                                                    </li> 
        
                                                </ul> 
        
                                            </div> 
        
                                        </ItemTemplate> 
        
                                    </telerik:RadPanelItem> 
        
                                </Items> 
        
                            </telerik:RadPanelItem> 
        
                        </Items> 
        
                        <CollapseAnimation Duration="100" Type="None" /> 
        
                        <ExpandAnimation Duration="100" Type="None" /> 
        
                    </telerik:RadPanelBar> 
        
                </telerik:RadAjaxPanel> 
        
            </asp:Content>

CS file:

    
            using System; 
        
            using System.Collections.Generic; 
        
            using System.Linq; 
        
            using System.Web; 
        
            using System.Web.UI; 
        
            using System.Web.UI.WebControls; 
        
            namespace MSD_web 
        
            { 
        
                public partial class MemberRegistration : System.Web.UI.Page 
        
                { 
        
                    protected void Page_Load(object sender, EventArgs e) 
        
                    { 
        
                    } 
        
                    protected void nextButton_Click(object sender, EventArgs e) 
        
                    { 
        
                        GoToNextItem(); 
        
                    } 
        
                    private void GoToNextItem() 
        
                    { 
        
                        int selectedIndex = RadPanelBar1.SelectedItem.Index; 
        
                        RadPanelBar1.Items[selectedIndex + 1].Selected = true; 
        
                        RadPanelBar1.Items[selectedIndex + 1].Expanded = true; 
        
                        RadPanelBar1.Items[selectedIndex + 1].Enabled = true; 
        
                        RadPanelBar1.Items[selectedIndex].Expanded = false; 
        
                    } 
        
                } 
        
            }

11 Answers, 1 is accepted

answered on 19 Jul 2016, 04:23 PM

Thanks, Hector! This problem still exists, even in the newest Telerik code. But I'll give a few more details to help others and/or enable Telerik to fix it. The code resides in Telerik.Web.UI.Common.Core.js in this area...

c<e.length;
c++){if(e[c].replace(/\s*/,"")==""){continue;
}if(e[c].indexOf("{")!=-1){f.insertRule(e[c]+"}",f.cssRules.length);
}}}}},getHeadElement:function(){var b=document.getElementsByTagName("head");

With this particular line highlighted...

f.insertRule(e[c]+"}",f.cssRules.length)

What's interesting, is you can have comments like this...

/* blah blah This CSS does blah blah */

But you get this error sometimes with comments like this...

/*
html body .RadMenu .rmGroup:before,
html body .RadMenu .rmMultiColumn:before,
html body .RadMenu .rmScrollWrap > .rmHorizontal:before,
html body .RadMenu .rmScrollWrap > .rmVertical:before {
width: 0px;
}
*/

So something isn't parsing right when you have actual styles in your comments.