private void frmAddEditStudent_Load(object sender, EventArgs e) { cboCity.DisplayMember = "CityName"; cboCity.ValueMember = "CityId"; using (stdproEntities db = new stdproEntities()) { cboCity.DataSource = db.Cities.ToList(); } }
private void Students_Load(object sender, EventArgs e) { db = new stdproEntities(); studentBindingSource.DataSource = db.Students.ToList(); cityBindingSource.DataSource = db.Cities.ToList(); }