private void btnRemove_Click(object sender, EventArgs e)
{
if (MessageBox.Show("Are you sure you wish to remove this supervisor?", "Confirmation", MessageBoxButtons.YesNo) == DialogResult.Yes)
{
SomerenDAL.Supervisor_DAO supervisor = new SomerenDAL.Supervisor_DAO();
supervisor.RemoveSup(cbRemove.Text);
showPanel("Supervisors");
cbRemove.ResetText();
}
}
private void btnAdd_Click(object sender, EventArgs e)
{
SomerenDAL.Supervisor_DAO superv = new SomerenDAL.Supervisor_DAO();
//to compare values in the lists to prevent from adding already existing supervisor
var listItems = listViewSupervisors.Items.Cast <ListViewItem>();
foreach (ListViewItem lview in listItems)
{
if (cbAdd.Text == lview.Text)
{
MessageBox.Show("This teacher is already a supervisor.", "Warning", MessageBoxButtons.OK);
return;
}
}
superv.AddSup(cbAdd.Text);
cbAdd.ResetText();
//to reniew the page
showPanel("Supervisors");
}
