private void btnNguyenLieu_Click(object sender, EventArgs e)
{
frmNhapXuatNguyenLieu nxnl = new frmNhapXuatNguyenLieu();
nxnl.Show();
this.Hide();
}
private void btnHuy_Click(object sender, EventArgs e)
{
int maPX = int.Parse(txtMaPX.Text);
NXNguyenLieu nl = getXuatNL();
if (ctxBO.kiemTraXuatNL(maPX) == false)
{
nxBO.XoaXuatNL(nl);
}
this.Hide();
frmNhapXuatNguyenLieu FromNhapXuatNL;
FromNhapXuatNL = new frmNhapXuatNguyenLieu();
FromNhapXuatNL.Show();
}