public CreateMessage CreateCreateMessage(string userId, long?orderId)
        {
            var model = new CreateMessage()
            {
                UserId   = userId,
                Subject  = null,
                Subjects = CreateSubjects(),
                Text     = null,
                OrderId  = orderId
            };

            return(model);
        }
 public void RefreshMessageCreateModel(CreateMessage model)
 {
     model.Subjects = CreateSubjects();
 }