How to prevent the Standard Title part from displaying when using a custom editor?

[MikeAlhayek]

I am trying to create a new editor for the TitlePart to prevent the user from having more than one content item with the same title. So I created a custom editor called UniqueTitle by adding two templates TitlePart-UniqueName.Edit.cshtml and TitlePart-UniqueName.Option.cshtml

To ensure that the title is unique, I thought I would do the logic using a custom Displaydriver. I created the following display driver

    public class UniqieTitlePartDisplayDriver : TitlePartDisplayDriver
    {
        private readonly IStringLocalizer S;
        private readonly ISession _session;
        private readonly string _editorName = "UniqueName";

        public UniqieTitlePartDisplayDriver(IStringLocalizer<UniqieTitlePartDisplayDriver> localizer, ISession session)
            : base (localizer)
        {
            S = localizer;
            _session = session;
        }

        public override IDisplayResult Display(TitlePart titlePart, BuildPartDisplayContext context)
        {
            var contentTypePartSettings = context.TypePartDefinition.GetSettings<ContentTypePartSettings>();

            if (contentTypePartSettings.Editor != _editorName)
            {
                return null;
            }

            return base.Display(titlePart, context);
        }

        public override IDisplayResult Edit(TitlePart titlePart, BuildPartEditorContext context)
        {
            var contentTypePartSettings = context.TypePartDefinition.GetSettings<ContentTypePartSettings>();

            if (contentTypePartSettings.Editor != _editorName)
            {
                return null;
            }

            return base.Edit(titlePart, context);
        }

        public override async Task<IDisplayResult> UpdateAsync(TitlePart model, IUpdateModel updater, UpdatePartEditorContext context)
        {
            var contentTypePartSettings = context.TypePartDefinition.GetSettings<ContentTypePartSettings>();

            if (contentTypePartSettings.Editor != _editorName)
            {
                return null;
            }

            if (await updater.TryUpdateModelAsync(model, Prefix, t => t.Title))
            {
                int total = 0;
                if (!string.IsNullOrWhiteSpace(model.Title))
                {
                    total = await _session.QueryIndex<ContentItemIndex>(q => q.ContentType == context.TypePartDefinition.ContentTypeDefinition.Name
                                                                         && q.DisplayText == model.Title
                                                                         && q.ContentItemVersionId != model.ContentItem.ContentItemId
                                                                         && q.ContentItemId != model.ContentItem.ContentItemId
                                                                         && (q.Latest || q.Published)).CountAsync();
                }

                if (total > 0)
                {
                    updater.ModelState.AddModelError(Prefix, nameof(model.Title), S["Another item with the same title already exists. Please edit the exiting item it provide a different title."]);
                }
                else
                {
                    return await base.UpdateAsync(model, updater, context);
                }
            }

            return Edit(model, context);
        }
    }

The problem with this code is that the TitlePart is showing two times where the EditorTemplate is set to UniqueName. I am guessing the default TitlePartDisplayDriver is rendering the Title regardless of the selected editor.

How can I prevent the default display driver from rendering the the Title when UniqueName editor is in use?

[jtkech]

You need something like this (but for TitlePart in your case)

        services.AddContentPart<BagPart>()
            .ForEditor<BagPartDisplayDriver>(editor => string.IsNullOrWhiteSpace(editor))
            .ForEditor<TrackBagPartDisplayDriver>(editor => editor == Editors.Track)
            ;

[MikeAlhayek]

Very Elegant!

[ns8482e]

@CrestApps - FYI - TitlePart is using ContentItem.DisplayText so If you are planning to use custom driver for TitlePart and not using any of the OOTB features provided by TitlePart Driver then you can just create your own DisplayDriver and no need to add TitlePart in your content.

[MikeAlhayek]

@ns8482e Thanks for that info!