Developer forum

It is a big wish and we are on it. I actually coded the below in the plane when visiting you a couple of weeks ago - it runs on my machine :-) !

Expect that you can do overrides of viewmodels instead - those modifications would work in webapi and viewmodel templates as well:

This is an 'advanced' scenario where you can do specialized overrides on item based content (Page, GridRow, Paragraph, maybe pageview).

The concept would be the same for i.e. productviewmodel and priceviewmodel - just wihtout the addinname attribute.

[AddInName("MultiPurposeParagraph")]
    public class SwiftPosterViewModel : ParagraphViewModel
    {
        private object _instance;
        public SwiftPosterViewModel()
        {
            //this is initialisation. The model does not have anyting set at this point.
            //Initialize objects, i.e. services, that can be used throughtout the instance - i.e. to get addtional data.
            _instance = new object();

            //This will not work as the header will be overriden later in the initialisation process of this object.
            base.Header = "Set header in constructor does not work";
        }

        /// <summary>
        /// Take over default property of the base viewmodel. Suitable to change default behavior
        /// </summary>
        public new string Header
        {
            get
            {
                return $"{base.Header} changed";
            }
        }

        /// <summary>
        /// Addtional data property available in template. Suitable for additional data
        /// </summary>
        public string NameOrTile
        {
            get
            {
                if (Item.GetRawValue("Title") is object)
                {
                    return Item.GetRawValue("Title").ToString();
                }
                else
                {
                    return Header;
                }
            }
        }

        /// <summary>
        /// Method to call from template using data from the model instance. Suitable for rendering logic
        /// </summary>
        /// <returns></returns>
        public string GetPosterPadding()
        {
            string posterPadding = Item.GetRawValueString("ContentPadding", string.Empty);
            string posterPaddingClass = string.Empty;

            switch (posterPadding)
            {
                case "none":
                    posterPaddingClass = " p-3 px-xl-3 py-xl-4";
                    break;
                case "small":
                    posterPaddingClass = " p-3 p-xl-4";
                    break;
                case "large":
                    posterPaddingClass = " p-4 p-xl-5";
                    break;
            }
            return posterPaddingClass;
        }
    }