FieldStyle property does not work correctly when set in a style setter  and implicit style targeted at PropertyGridField is missing. 

Creating a PropertyDefinition with the ComboBox inside its EditorTemplate and setting IsReadOnly of the current PropertyDefinition in SelectionChanged of the ComboBox throws StackOverFlowException.

RadComboBox as a PropertyDefinition editor cannot be closed and blocks the UI when the PropertyGrid is placed inside ChildWindow