A more flexible way to hide category property in Episerver

Some time ago, Joel Abrahamsson wrote an article about how to hide Episerver's category property. But sometimes you need to hide it only for specific content types. You can filter by OwnerContent, but then you have to add all content types you want to filter, to the descriptor class. It is not a flexible solution.

In Episerver you can hide properties in edit mode using a ScaffoldColumn attribute by using it like this:


This does not work for the Category property though. To fix it, you can add an editor descriptor similar to Joel's but instead of filtering on content types, filter on ScaffoldColumn and use its Scaffold value:

[EditorDescriptorRegistration(TargetType = typeof (CategoryList))]
public class HideCategoryEditorDescriptor : EditorDescriptor
    public override void ModifyMetadata(
        ExtendedMetadata metadata,
        IEnumerable<Attribute> attributes)
        var attrs = attributes as Attribute[] ?? attributes.ToArray();
        base.ModifyMetadata(metadata,  attrs);

        if (metadata.PropertyName != "icategorizable_category") return;

        var scaffoldAttribute =
        if (scaffoldAttribute == null) return;

        metadata.ShowForEdit = scaffoldAttribute.Scaffold;

NOTE: I am using SafeOfType extension method from the Geta.Net.Extensions library.

Now you can use ScaffoldColumn to control the visibility of the Category property.

public override CategoryList Category { get; set; }

Here I am overriding a category property from the base class and applying the attribute.