Hi all,

I'm currently trying to cancel the saving of a stylesheet file. For this i want to add a new event handler that gets called bevor saving of a stylesheet.

I tried it in two ways:

First one:

StyleSheet.BeforeSave += Stylesheet_BeforeSave;
private void Stylesheet_BeforeSave(StyleSheet sender, SaveEventArgs e)
        {
            //Do what you need to do. In this case logging to the Umbraco log
            //Log.Add(LogTypes.Debug, sender.Id, "Test some properties of stylesheet " + sender.Text + ": " + sender.nodeObjectType);

            //cancel the publishing if you want.
            LockEntry myLock = this._db.SingleOrDefault<LockEntry>(sender.Id);
            if (null != myLock)
            {
                Log.Add(LogTypes.Debug, sender.Id, "the stylesheet " + sender.Text + " has a lock");
                if (myLock.UserId != User.GetCurrent().Id)
                {
                    Log.Add(LogTypes.Debug, sender.Id, "the stylesheet " + sender.Text + " is locked by another user");
                    e.Cancel = true;
                }
                else
                {
                    Log.Add(LogTypes.Debug, sender.Id, "the stylesheet " + sender.Text + " is about to be saved");
                    this._db.Delete(myLock);
                    sender.saveCssToFile();
                }
            }
            else
            {
                Log.Add(LogTypes.Debug, sender.Id, "the stylesheet " + sender.Text + " has no lock: save file");
                sender.saveCssToFile();
            }
        }

This makes use of the old event system. The event gets actually called. I set the cancel property of the SaveEventArgs but the Stylesheet gets saved.

Second one:

FileService.SavingStylesheet += (sender, e) =>
            {
                LockEntry myLock = this._db.SingleOrDefault<LockEntry>(e.SavedEntities.First().Id);
                if (e.CanCancel && myLock != null)
                {
                    if (myLock.UserId != User.GetCurrent().Id)
                    {
                        e.Cancel = true;
                    }
                }
            };

This never gets called.

Any suggestions on how to cancel the saving? Try to create a basic lock feature as a prototype like the MyLock package does for content items.

Any help welcome.