public void SectionEditCommand_Execute()
        {
            if (RentLivingEdit == null)
            {
                return;
            }
            if (SectionsSelectedItem == null)
            {
                return;
            }

            if (RentLivingEdit.Ownership == Ownerships.Unit)
            {
                SectionsSelectedItem.IsOwnershipTypeUnit = true;
            }
            else if (RentLivingEdit.Ownership == Ownerships.All)
            {
                SectionsSelectedItem.IsOwnershipTypeUnit = false;
            }

            OpenRentLivingRoomWindowEventArgs ag = new OpenRentLivingRoomWindowEventArgs();

            ag.Id = SectionsSelectedItem.RentLivingRoomId;
            ag.RentLivingRoomObject = SectionsSelectedItem;
            ag.RentLivingRooms      = RentLivingEdit.RentLivingRooms;


            OpenRentLivingRoomWindow?.Invoke(this, ag);
        }
        public void SectionNewCommand_Execute()
        {
            if (RentLivingEdit == null)
            {
                return;
            }

            // RentLivingRoom Newオブジェクトを用意
            RentLivingRoom rlsection = new RentLivingRoom(RentLivingEdit.RentId, _id, Guid.NewGuid().ToString());

            rlsection.IsNew = true;
            if (RentLivingEdit.Ownership == Ownerships.Unit)
            {
                rlsection.IsOwnershipTypeUnit = true;
            }
            else if (RentLivingEdit.Ownership == Ownerships.All)
            {
                rlsection.IsOwnershipTypeUnit = false;
            }

            OpenRentLivingRoomWindowEventArgs ag = new OpenRentLivingRoomWindowEventArgs();

            ag.Id = rlsection.RentLivingRoomId;
            ag.RentLivingRoomObject = rlsection;
            ag.RentLivingRooms      = RentLivingEdit.RentLivingRooms;

            OpenRentLivingRoomWindow?.Invoke(this, ag);
        }