Hi guys, I just the developer tutorial video from youtube. I reached no.21 about protecting your site from untrusted content. so far it's ok but when I put 

<NeatHtml:UntrustedContent ID="UntrustedContent1" runat="server" EnableViewState="false" TrustedImageUrlPattern='<%# RegexRelativeImageUrlPatern %>' ClientScriptUrl="~/ClientScript/NeatHtml.js">

........

</NeatHtml:UntrustedContent>

the GuestBook module doesnt show on the page. but when I delete those code. the module show. I follow exactly the step from the tutorial. any one knows how to solve it?

Thanks

Hi Joe, Thanks for your response. Ya I don't put any editor there. Here's my source code perhaps you can help me

GuestBookModule.ascx

<%@ Control Language="C#" AutoEventWireup="false" CodeBehind="GuestBookModule.ascx.cs" Inherits="wardrobe.Web.UI.GuestBookModule" %>

<portal:mojoPanel ID="mp1" runat="server" ArtisteerCssClass="art-Post" RenderArtisteerBlockContentDivs="true">
<mp:CornerRounderTop id="ctop1" runat="server" />
<asp:Panel ID="pnlWrapper" runat="server" cssclass="art-Post-inner panelwrapper GuestBook">
<portal:ModuleTitleControl EditText="Edit" runat="server" id="TitleControl" />
<portal:mojoPanel ID="MojoPanel1" runat="server" ArtisteerCssClass="art-PostContent">

    <asp:Panel ID="pnlGuestBook" runat="server" CssClass="modulecontent" GroupingText="Sign Our GuestBook" DefaultButton="btnSubmit">
        <div class="floatpanel">
            <ol class="formlist">
                <li class="settingrow">
                <mp:SiteLabel id="lblName" runat="server" ForControl="txtName" CssClass="settinglabel" ConfigKey="NameLabel" ResourceFile="GuestBookResources" />
                <asp:TextBox ID="txtName" CssClass="normalwidetextbox forminput" runat="server" />
</li>
<li class="settingrow">
<mp:SiteLabel id="lblEmailAddress" runat="server" ForControl="txtEmailAddress" CssClass="settinglabel" ConfigKey="EmailAddressLabel" ResourceFile="GuestBookResources" />
<asp:TextBox ID="txtEmailAddress" CssClass="normalwidetextbox forminput" runat="server" />
<asp:RegularExpressionValidator ID="regexEmail" runat="server" ValidationGroup="GuestBook" ControlToValidate="txtEmailAddress" Display="Dynamic"></asp:RegularExpressionValidator>
</li>
<li class="settingrow">
<mp:SiteLabel id="lblLocation" runat="server" ForControl="txtLocation" CssClass="settinglabel" ConfigKey="LocationLabel" ResourceFile="GuestBookResources" />
<asp:TextBox ID="txtLocation" CssClass="widetextbox forminput" runat="server" />
</li>
<li class="settingrow">
<mp:SiteLabel id="lblWebsiteUrl" runat="server" ForControl="txtWebsiteUrl" CssClass="settinglabel" ConfigKey="WebsiteUrlLabel" ResourceFile="GuestBookResources" />
<asp:TextBox ID="txtWebsiteUrl" CssClass="widetextbox forminput" runat="server" />
<asp:RegularExpressionValidator ID="regexUrl" runat="server" ValidationGroup="GuestBook" ControlToValidate="txtWebsiteUrl" Display="Dynamic" ValidationExpression="^(ht|f)tp(s?)://([\w-]+\.)+[\w-]+(/[\w-./?%&=]*)?$"></asp:RegularExpressionValidator>
</li>
<li class="settingrow">
<mp:SiteLabel id="lblComment" runat="server" ForControl="txtComment" CssClass="settinglabel" ConfigKey="CommentLabel" ResourceFile="GuestBookResources" />
<div class="settingrow">
<mpe:EditorControl ID="edComment" runat="server" />
</div>
</li>
<li class="settingrow">
<mp:CaptchaControl ID="captcha" runat="server" />
</li>
<li class="settingrow">
<asp:Button ID="btnSubmit" runat="server" ValidationGroup="GuestBook" />
<asp:ValidationSummary ID="vsummary" runat="server" ValidationGroup="GuestBook" />
</li>
</ol>
<asp:Label id="lblTest" runat="server"></asp:Label>
</div>

<asp:Panel ID="pnlResults" runat="server" CssClass="floatpanel2">
<asp:Repeater ID="rptGuests" runat="server">
<ItemTemplate>
<NeatHtml:UntrustedContent ID="UntrustedContent1" runat="server" EnableViewState="false" TrustedImageUrlPattern='<%# RegexRelativeImageUrlPatern %>' ClientScriptUrl="~/ClientScript/NeatHtml.js">
<div class="gbitem">
<span class="gbbase gbcomment"><%# Eval("Comment") %></span>
<span class="gbbase gbname"><%# Eval("Name") %></span>
<span class="gbbase gblocation"><%# Eval("Location") %></span>
<span class="gbbase gbweb">
<a href="<%# Eval("WebSiteUrl") %>" rel="nofollow"><%# Eval("WebSiteUrl") %></a>
</span>
</div>
</NeatHtml:UntrustedContent>
</ItemTemplate>
</asp:Repeater>
</asp:Panel>
</asp:Panel>

</portal:mojoPanel>
<div class="cleared"></div>
</asp:Panel>
<mp:CornerRounderBottom id="cbottom1" runat="server" />
</portal:mojoPanel> 

GuestBookModule.ascx.cs

using System;
using System.Collections;
using System.Collections.Generic;
using System.IO;
using System.Data;
using System.Configuration;
using System.Globalization;
using System.Text;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using mojoPortal.Web;
using mojoPortal.Web.Framework;
using mojoPortal.Web.UI;
using mojoPortal.Business;
using mojoPortal.Business.WebHelpers;
using mojoPortal.Web.Editor;
//using mojoPortal.Web.Editor;
//using mojoPortal.Web.Controls.Captcha;
//using mojoPortal.Business;
//using log4net;
//using wardrobe.Features.Business;
using wardrobe.Business;
using Resources;

namespace wardrobe.Web.UI
{

    public partial class GuestBookModule : SiteModuleControl
    {
  // FeatureGuid 9a26af58-de50-4c07-a925-58e43f5d22ee

        private GuestBookRespository repository = new GuestBookRespository();
        protected string RegexRelativeImageUrlPattern = @"^/.*[_a-zA-Z0-9]+\.(png|jpg|jpeg|gif|PNG|JPG|JPEG|GIF)$";

  #region OnInit

        protected override void OnInit(EventArgs e)
        {
            base.OnInit(e);
            this.Load += new EventHandler(Page_Load);
            btnSubmit.Click += new EventHandler(btnSubmit_Click);
            Page.EnableViewState = true;
            SiteUtils.SetupEditor(edComment);
        }

        #endregion

        protected void Page_Load(object sender, EventArgs e)
        {
            LoadSettings();
            PopulateLabels();
            PopulateControls();

        }

        private void PopulateControls()
        {
            //TitleControl.EditUrl = SiteRoot + "/GuestBook/GuestBookEdit.aspx";
            TitleControl.Visible = !this.RenderInWebPartMode;
            if (this.ModuleConfiguration != null)
            {
                this.Title = this.ModuleConfiguration.ModuleTitle;
                this.Description = this.ModuleConfiguration.FeatureName;
            }

            if (!IsPostBack) { BindResults(); }
        }

        private void BindResults()
        {
            List<GuestBook> guests = repository.GetAll(ModuleGuid);
            rptGuests.DataSource = guests;
            rptGuests.DataBind();
        }

        void btnSubmit_Click(object sender, EventArgs e)
        {
Page.Validate();
if (!Page.IsValid) { return; }
else
{
Save();
}
WebUtils.SetupRedirect(this, Request.RawUrl);
}

private void Save()
{
GuestBook guestBook = new GuestBook();

guestBook.ModuleGuid = ModuleGuid;
guestBook.ModuleID = ModuleId;
guestBook.Name = txtName.Text;
guestBook.EmailAddress = txtEmailAddress.Text;
guestBook.Location = txtLocation.Text;
guestBook.WebsiteUrl = txtWebsiteUrl.Text;
guestBook.Comment = edComment.Text;
guestBook.CreatedDate = DateTime.UtcNow;
guestBook.CreatedByIP = SiteUtils.GetIP4Address();

repository.Save(guestBook);

}

private void PopulateLabels()
{
TitleControl.EditText = "Edit";
btnSubmit.Text = GuestBookResources.SubmitButton;

regexEmail.ErrorMessage = GuestBookResources.EmailValidationWarning;
regexUrl.ErrorMessage = GuestBookResources.UrlValidationWarning;
}

private void LoadSettings()
{

edComment.WebEditor.ToolBar = mojoPortal.Web.Editor.ToolBar.AnonymousUser;
edComment.WebEditor.Height = Unit.Pixel(150);
captcha.ProviderName = siteSettings.CaptchaProvider;
captcha.Captcha.ControlID = "captcha" + ModuleId.ToInvariantString();
captcha.RecaptchaPrivateKey = siteSettings.RecaptchaPrivateKey;
captcha.RecaptchaPublicKey = siteSettings.RecaptchaPublicKey;

regexEmail.ValidationExpression = SecurityHelper.RegexEmailValidationPattern;
}

}
}           

GuestBookModule.ascx.designer.cs

namespace wardrobe.Web.UI {


    public partial class GuestBookModule {
        protected global::mojoPortal.Web.UI.ModuleTitleControl TitleControl;
        protected global::mojoPortal.Web.Editor.EditorControl edComment;
        protected global::mojoPortal.Web.Controls.CaptchaControl captcha;

        protected global::System.Web.UI.WebControls.Panel pnlWrapper;
        protected global::System.Web.UI.WebControls.Panel pnlGuestBook;
        protected global::System.Web.UI.WebControls.TextBox txtName;
        protected global::System.Web.UI.WebControls.TextBox txtEmailAddress;
        protected global::System.Web.UI.WebControls.RegularExpressionValidator regexEmail;
        protected global::System.Web.UI.WebControls.TextBox txtLocation;
        protected global::System.Web.UI.WebControls.TextBox txtWebsiteUrl;
        protected global::System.Web.UI.WebControls.RegularExpressionValidator regexUrl;
        protected global::System.Web.UI.WebControls.Button btnSubmit;
        protected global::System.Web.UI.WebControls.ValidationSummary vsummary;
        protected global::System.Web.UI.WebControls.Label lblTest;
        protected global::System.Web.UI.WebControls.Panel pnlResults;
        protected global::System.Web.UI.WebControls.Repeater rptGuests;
    }
}

"Project References"

Brettle.Web.NeatHtml
Brettle.Web.NeatHtmlTools
log4net
Microsoft.CSharp
mojoPortal.Web
mojoPortal.Web.Controls
mojoPortal.Web.Editor
mojoPortal.Web.Framework
System
System.Configuration
System.Core
System.Data
System.DataSetExtensions
System.Drawing
System.EnterpriseServices
System.Web
System.Web.ApplicationService
System.Web.DynamicData
System.Web.Entity
System.Web.Extensions
System.Web.Mobile
System.Web.Services
System.Xml
System.Web.Linq
wardrobe.Business

and I'm using Visual Studio 2010 Premium and SQL Server 2008 R2 Express

Once again thanks for your response Joe