Hi, using your code in a small stand-alone application, I place a breakpoint in DefaultUomEditor.ResolveEditor() and propertyItem.Instance is not null. Could it be related to something else ?
Also, I suggest using public setter instead of internal setter for property "Uom" if you want to use a specific editor. An editor should be used when a property can be edited.
Also, I suggest using public setter instead of internal setter for property "Uom" if you want to use a specific editor. An editor should be used when a property can be edited.