Message in Russian (Русский)
Невозможно задать в свойстве Owner объект Window, который не был показан ранее.
Unlocalized message
Cannot set Owner property to a Window that has not been shown previously.
Search by GoogleНевозможно задать в свойстве Owner объект Window, который не был показан ранее.
Cannot set Owner property to a Window that has not been shown previously.
Search by Google