public void ViewCombobox()
{
DataTable ds = new DataTable();
ds = bllTaiKhoan.getAllGetSV();
cbHoTen.DisplayMember = "hoten";
cbHoTen.ValueMember = "hoten";
cbHoTen.DataSource = ds;
}
public void LoadComboSinhVien()
{
DataTable ds = new DataTable();
ds = bllTaiKhoan.getAllGetSV();
cbxTenSinhVien.DisplayMember = "hoten";
cbxTenSinhVien.ValueMember = "hoten";
cbxTenSinhVien.DataSource = ds;
}