Hi all,

I am trying to hook into the BeforePublishing event to apply some custom validation for a particular document type. Based on the article at http://blog.mattbrailsford.com/2010/07/11/registering-an-application-start-event-handler-in-umbraco/ I created a class which inherits from umbraco.Global, however none of the events Application_Start etc appear to fire (confirmed by debugging). I am using version 4.7.1 and my code is below:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
/// <summary>
/// Summary description for Global
/// </summary>
public class Global : umbraco.Global
{
    bool _beforePublishEventAttached;
    protected override void Application_Start(object sender, EventArgs e)
    {
        base.Application_Start(sender, e);
        if (!_beforePublishEventAttached)
        {
            umbraco.cms.businesslogic.web.Document.BeforePublish += new umbraco.cms.businesslogic.web.Document.PublishEventHandler(Document_BeforePublish);
        }
    }
    protected override void Application_End(object sender, EventArgs e)
    {
        base.Application_End(sender, e);
        if (_beforePublishEventAttached)
        {
            umbraco.cms.businesslogic.web.Document.BeforePublish -= new umbraco.cms.businesslogic.web.Document.PublishEventHandler(Document_BeforePublish);
            _beforePublishEventAttached = false;
        }
    }
    void Document_BeforePublish(umbraco.cms.businesslogic.web.Document sender, umbraco.cms.businesslogic.PublishEventArgs e)
    {
        if (sender.ContentType.Alias == "Service")
        {
            if (sender.getProperty("showWidget").Value == "1" && (string.IsNullOrEmpty(sender.getProperty("widgetTitle").Value.ToString())))
            {
                e.Cancel = true;
            }
        }
        _beforePublishEventAttached = true;
    }
}

I have two questions. 1) Am I doing anything wrong? The article also mentions creating a Global.asax file and inheriting, but that feels a bit like a hack. 2) Is there anyway of returning a message to the editor when the Publish event is cancelled - it's going to be a bit confusing to them if they don't know the reason why the action was cancelled.

Thanks in advance

Al