public static void AddSuper(string add_supervisor)
{
List <SomerenModel.Supervisor> supervisors = new List <SomerenModel.Supervisor>();
// to get data from DataBase
supervisors = SomerenDB.DB_getSupervisors();
List <string> supervisorsStrings = new List <string>();
foreach (SomerenModel.Supervisor supervisor in supervisors)
{
supervisorsStrings.Add(supervisor.getLastName().ToLower());
}
// validation if the teacher is a supervisor
if (supervisorsStrings.Contains(add_supervisor.ToLower()))
{
// show a message
MessageBox.Show("This teacher is already a supervisor! Choose another one!",
"Warning", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
else
{
SomerenDB.DB_AddSupervisor(add_supervisor);
}
}
public static Control showListSupervisors()
{
List <SomerenModel.Supervisor> supervisors = new List <SomerenModel.Supervisor>();
// to get data from DataBase
supervisors = SomerenDB.DB_getSupervisors();
// Making a list and editing its format
ListView supervisorListView = new ListView();
supervisorListView.Height = 370;
supervisorListView.Width = 370;
supervisorListView.View = View.Details;
supervisorListView.FullRowSelect = true;
// adding colums to the list
supervisorListView.Columns.Add("First Name", -2, HorizontalAlignment.Left);
supervisorListView.Columns.Add("Last Name", -2, HorizontalAlignment.Left);
// storing data into the list
foreach (SomerenModel.Supervisor record in supervisors)
{
ListViewItem entryListItem = supervisorListView.Items.Add(record.getFirstName().ToString());
entryListItem.SubItems.Add(record.getLastName().ToString());
}
return(supervisorListView);
}