Support for multiple ItemTemplate DataTemplates

[adha-admin]

Is there any support for multiple ItemTemplate, and then use the DataTemplateSelector to choose which DataTemplate to display. I want to insert adverts every 5 cards and that has a different layout. So define ItemTemplate="{StaticResource EmptyViewTemplate}"
define your DataTemplate in the Resouces

and then reference a DataTemplateSelector. This works fine for a CarouselView, but errors with Failed on LoadTemplate for SwipeCardView - can you fix. I am pushed for time, so if you can either address this or let me know a work around I would really appreciate it.

        <local:ResultTemplateSelector x:Key="ResultItemTemplateSelector"
                                      AdvertViewTemplate="{StaticResource AdvertViewTemplate}"
                                      DonorViewTemplate="{StaticResource DonorViewTemplate}"
                                      EmptyViewTemplate="{StaticResource EmptyViewTemplate}"  />

[markolazic88]

Hi @adha-admin, Unfortunately, DataTemplateSelectors are not supported at the moment. I just pushed to master sample page (TemplateSelectorPage) that confirms your observation.

I quickly tried drafting a change for OnItemTemplatePropertyChanged, but it seems that it doesn't work:

                DataTemplate dataTemplate;
                if (swipeCardView.ItemTemplate is DataTemplateSelector)
                {
                    dataTemplate = (swipeCardView.ItemTemplate as DataTemplateSelector).SelectTemplate(swipeCardView._cards[i].BindingContext, null);
                }
                else
                {
                    dataTemplate = swipeCardView.ItemTemplate;
                }

                var content = dataTemplate.CreateContent();

If you would like, you could debug this code and check what's going on, but most likely this one will have to wait for a major refactoring in order to be resolved.

[adha-admin]

Thanks Mark, That was my observation also - The problem is that the view of the "next" view is already built by the time the swipe has happened. I Ended up using the flags I was using in the DataTemplateSelectors for the sections i wanted to show or not, and that works ok, so i am fine for now.

Having the "EmptyView" would still be good to have though (I had to fudge a dummy record to show when the list was complete as per issue: https://github.com/markolazic88/SwipeCardView/issues/8)