I have implemented a custom property like the multilanguage example in this article: http://world.episerver.com/Blogs/Linus-Ekstrom/Dates/2012/9/EPiServer-7-Configuring-editors-for-your-properties/. I have however ran into something weird when working with this from codebehind and updating an existing page.

I'm using this concept to be able to control what information is to be synced to a page from a scheduled job like this

var page = (PersonPage)FindMenuPage(parentPageRef, person.PersonID.ToString(CultureInfo.InvariantCulture), "PersonPage");
            if (page != null)
            {
                var editablePage = (PersonPage)page.CreateWritableClone();
                editablePage.Name = string.Concat(person.Firstname, " ", person.Lastname);
                if (page.SyncOptions != null)
                {
                    foreach (var option in ContactSyncOptions.ToSyncOptions(page.SyncOptions))
                    {
                        var property = editablePage.GetType().GetProperty(option.PagePropertyName);
                        var propertyValue = person.GetType().GetProperty(option.ObjectPropertyName).GetValue(person);
                        property.SetValue(editablePage, propertyValue);
                    }
                }
                editablePage.URLSegment = UrlSegment.CreateUrlSegment(editablePage);
                contentRepository.Save(editablePage, SaveAction.Publish, AccessLevel.NoAccess);
            }

This code checks if the page exists and if it does it reads from the page which values is to be synced (SyncOptions) and then saves the pages. However I can see the correct value of the SyncOptions is set just before the Save method but after the value is empty. I can successfully set the SyncOption value from the UI but when working with it from code the value restes on save.

The code for the prooperty looks like this:

[Display(GroupName = GroupNames.SyncSettings)]
        [UIHint(SiteUIHints.SyncOptions)]
        public virtual string SyncOptions { get; set; }

        [EditorDescriptorRegistration(TargetType = typeof(string), UIHint = SiteUIHints.SyncOptions)]
        public class SyncOptionsEditorDescriptor : EditorDescriptor
        {
            public override void ModifyMetadata(ExtendedMetadata metadata, IEnumerable<System.Attribute> attributes)
            {
                SelectionFactoryType = typeof(SyncOptionsSelectionFactory);
                ClientEditingClass = "epi-cms.contentediting.editors.CheckBoxListEditor";
                base.ModifyMetadata(metadata, attributes);
            }
        }

        public class SyncOptionsSelectionFactory : ISelectionFactory
        {
            public IEnumerable<ISelectItem> GetSelections(ExtendedMetadata metadata)
            {
                return ContactSyncOptions.GetSelectItems;
            }
        }

Has someone encountered this before or see if there is something wrong with the property setup?