CheckLookupEditorAttribute.CascadeField property
Cascade filtering field (items will be filtered on this key, e.g. CountryID). Make sure you have the [LookupInclude] attribute on this field of the lookup row, otherwise you'll have empty results as this field won't be available on the client side.
public object? CascadeField { get; set; }
See Also
- class CheckLookupEditorAttribute