private void GetDepartmentsInComboBox()
 {
     List<Department> departmentList=new List<Department>();
     DepartmentManager departmentManager = new DepartmentManager();
     departmentList = departmentManager.GetDepartments();
     departmentComboBox.ValueMember = "Id";
     departmentComboBox.DisplayMember = "Name";
     departmentComboBox.DataSource = null;
     departmentComboBox.DataSource = departmentList;
 }
 private void saveButton_Click(object sender, EventArgs e)
 {
     Department department=new Department();
     department.Name = departmentsNameTextBox.Text;
     DepartmentManager departmentManager=new DepartmentManager();
     if (departmentManager.Save(department))
     {
         Close();
         MessageBox.Show("Department Successfully Added");
     }
 }