public void ReLoad()
{
DataTable dt = new DataTable();
dt = bllTrangThai.getAllTrangThai();
dgvTrangThai.DataSource = dt;
}
public void LoadComboTrangThai()
{
DataTable ds = new DataTable();
ds = bllTrangThai.getAllTrangThai();
cbTenTrangThai.DisplayMember = "tentrangthai";
cbTenTrangThai.ValueMember = "tentrangthai";
cbTenTrangThai.DataSource = ds;
}