Patient.cs

    class Patient
    {
        public string ID { get; set; }
        public int Age { get; set; }
        public int Priority { get; set; }

        public Patient(string iD, int age, int priority)
        {
            ID = iD;
            Age = age;
            Priority = priority; //0,1,2,3
        }
        public void CallPatient()
        {
            MessageBox.Show(ID + " " + Age + " " + Priority);
        }
    }