private void CreateNewDepartment()
        {
            if ((textBox1.Text != String.Empty) && (comboBox1.SelectedIndex >= 0))
            {
                db.AddToDepartment(Department.CreateDepartment(0, textBox1.Text, Convert.ToInt32(comboBox1.SelectedValue)));

                Person person = (Person)comboBox1.SelectedItem;
                Department dep = new Department();
                dep.departmentID = 0;
                dep.departmentName = textBox1.Text;
                person.Department.Add(dep);
                db.SaveChanges();
            }
        }