private void btnSuaKH_Click(object sender, EventArgs e)
{
for (int i = 0; i < qlkh.DanhSach.Count; i++)
{
if (lvKH.Items[i].Selected)
{
frmKH khachhang = new frmKH(qlkh.DanhSach[i].CMND, this);
khachhang.ShowDialog();
}
}
}
private void btnThemKH_Click(object sender, EventArgs e)
{
frmKH khachhang = new frmKH(this, qlkh);
khachhang.ShowDialog();
}