Hi

I'm trying to set up some events for a specific mediatype.

In the end it's suppose to Create a label with a version number, stop the user for changing the document and stop a delete event

But first up

I trying to create the version number I have created a MediaService.Created event where i'm setting the version number, and that works a attended. But when a save the media item it deletes the version number Then i tryid to setup mediaservice.saving and saved event. Where it checks if the label is empty and otherwise put the version number in This works but, not in the first save. So it works if i save a second time, and i want to save it the first time.

Heres the code`public DocumentlibraryEvents() { MediaService.Saving += MediaServiceSaving; MediaService.Deleting += MediaServiceDeleting; MediaService.Created += MediaServiceCreated; MediaService.Saved += MediaServiceSaved; }

    void MediaService_Saved(IMediaService sender, Umbraco.Core.Events.SaveEventArgs<IMedia> e)
    {

        foreach (var mediaItem in e.SavedEntities)
        {
            if (mediaItem.ContentType.Alias == "DokumentarkivVersion")
            {
                foreach (var property in mediaItem.Properties.Where(property => property.Alias == "version"))
                {
                    if (property.Value == "")
                    {
                        mediaItem.SetValue("version", GetVersion(mediaItem));
                        sender.Save(mediaItem);
                    }
                }
            }
        }
    }

    void MediaService_Created(IMediaService sender, Umbraco.Core.Events.NewEventArgs<IMedia> e)
    {
        var mediaItem = e.Entity;
        if (mediaItem.ContentType.Alias == "DokumentarkivVersion")
        {
            mediaItem.SetValue("version", GetVersion(mediaItem) + 1);

            mediaItem.Name = Convert.ToString(GetVersion(mediaItem) + 1);

        }


    }

    void MediaService_Deleting(IMediaService sender, Umbraco.Core.Events.DeleteEventArgs<IMedia> e)
    {
        e.Cancel = true;
    }

    void MediaService_Saving(IMediaService sender, Umbraco.Core.Events.SaveEventArgs<Umbraco.Core.Models.IMedia> e)
    {
    }

    private int GetVersion(IMedia mediaItem)
    {
        return mediaItem.Parent().Children().Count();
    }`

Also i want to know how to cancel i Delete event.

I'm using Umbraco 7.1.4