Hi Tom,

I think the FAQ item you referred is for version 4 and 5.

So I think you can create a property on the BasePage and then use it where you want because it is available on all the pages and you can write your own logic to retrieve it.

Hi Tom

You could emulate the deprecated Dynamic Properties behaviour, by adding the field to a base page type, an shared interface or similar. Then when you need the property value, you can look at the current page first to see if the property has a value.

If it has a value, return it. If it doesn't have a value, traverse up to the first immediate ancestor and check if that has a value for the property. If it has a value, return. If it doesn't, you continue upwards, until you reach a page that doesn't have the property.

You could create an extension method, something like this:

private static object GetPropertyFromCurrentPageOrParent(this PageData pageData, string propertyName)
{
   if (pageData.Property[propertyName] != null)
      return pageData.Property[propertyName].Value;

   if (pageData.ContentLink == ContentReference.RootPage)
      return null;

   return ServiceLocator.Current.GetInstance<IContentLoader>().Get<PageData>
}

Use it to get property value by property name. If the property is null, property with the same name from the parent will be returned.

Calling ServiceLocator from within a recursive function is probably not the best idea. So you could rewrite it, like this:

private static object GetPropertyFromCurrentPageOrParent(this PageData pageData, string propertyName)
{
   while (true)
   {
      if (pageData.Property[propertyName] != null) return pageData.Property[propertyName].Value;
      if (pageData.ContentLink == ContentReference.RootPage) return null;
      pageData = ServiceLocator.Current.GetInstance<IContentLoader>().Get<PageData>(pageData.ParentLink);
      }
}

Thank you all for your help.

I managed to solve this through the use of an interface shared across multiple page types (which provided the shared fields I needed).

I then made use of an ActionFilter - PageContextActionFilter : IResultFilter to execute the code before the page loaded (if the type is correct). I also used _contentLoader.GetAncestors(currentContentLink) to get a list of the parent pages. I looped through the list to check if my inherit field had been set and if it had then I updated the values in the view model of the current page.

Cheers,
Tom.

Another solution is described here:
https://www.codeart.dk/blog/2018/9/good-ol-dynamic-properties/

And a slightly modified version near the end of this:
https://www.codeart.dk/blog/2019/10/ascend-2019-code-mania/