Nik,

In the past we have done this with content events so on the before unpublish you cancel the publish.

Regards

Ismail

Hi Nik,

I'm doing this as well with content events. Especially to prevent users from unpublishing or deleting nodes that are needed for a functioning website (e.g. homepage)

Here is the code I have :

public class BootManager : ApplicationEventHandler
{                
        protected override void ApplicationStarting(UmbracoApplicationBase umbracoApplication, ApplicationContext applicationContext)
        {
            ContentService.UnPublishing += this.ContentServiceOnUnPublishing;
        }

         private void ContentServiceOnUnPublishing(IPublishingStrategy sender, PublishEventArgs<IContent> publishEventArgs)
        {
            var doctypes = new[]
                               {
                                   "Website",
                                   "Homepage"
                               };

            foreach (var entity in publishEventArgs.PublishedEntities)
            {
                if (doctypes.Contains(entity.ContentType.Alias))
                {                   
                    publishEventArgs.CancelOperation(new EventMessage("Warning", "This page can not be unpublished", EventMessageType.Warning));
                }
            }
        }
}

You can see i'm trying to show a warning message to the user when the unpublish is cancelled. However that is not working because of bug in Umbraco. The unpublishing is cancelled, but you don't have feedback to the user

The bug is found here : http://issues.umbraco.org/issue/U4-7757

Vote it up if you wan't to have it fixed.

Dave

I also have this issue in 7.5.4 when trying to CancelOperation for a Media trashing event.

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