Hello,

I had this all working on a site. We got doc type with about 3 mntp properties and the convertor was firing fine. Client the added content and now for certain properties the converter always returns null.

When i get raw value DataValue i get the csv list. However when i step through code and look at

  public override object ConvertSourceToObject(PublishedPropertyType propertyType, object source, bool preview)
    {
        // Get the data type "content" or "media" setting
        /*
        var dts = ApplicationContext.Current.Services.DataTypeService;
        var startNodePreValue =
            dts.GetPreValuesCollectionByDataTypeId(propertyType.DataTypeId)
                .PreValuesAsDictionary.FirstOrDefault(x => x.Key.ToLowerInvariant() == "startNode".ToLowerInvariant()).Value.Value;

        var startNodeObj = JsonConvert.DeserializeObject<JObject>(startNodePreValue);
        var pickerType = startNodeObj.GetValue("type").Value<string>();
        */

        if (source == null)
        {
            return null;
        }

        var nodeIds = (int[])source;

nodeIds is null for that same property, Going further up the call stack,

 public override object ConvertDataToSource(PublishedPropertyType propertyType, object source, bool preview)
    {
        var nodeIds =
            source.ToString()
            .Split(new[] { "," }, StringSplitOptions.RemoveEmptyEntries)
            .Select(int.Parse)
            .ToArray();

        return nodeIds;
    }

source is null this is really weird.

Any ideas?

Regards

Ismail