private void btnAddLoaiNL_Click(object sender, EventArgs e)
{
_frmLoaiNL = new frmLoaiNguyenLieu(_tenTK, 1);
_frmLoaiNL.MdiParent = this.MdiParent;
_frmLoaiNL.Dock = DockStyle.Fill;
_frmLoaiNL.Show();
this.Hide();
}
// MDI frmLoaiNguyenLieu
void MoFormLoaiNguyenLieu()
{
Form frm = KiemTraFormTonTai(typeof(frmLoaiNguyenLieu));
if (frm != null)
{
frm.Activate();
}
else
{
frmLoaiNguyenLieu m_frmHoaDonThanhToan = frmLoaiNguyenLieu.Instance;
m_frmHoaDonThanhToan.MdiParent = this;
m_frmHoaDonThanhToan.Dock = DockStyle.Fill;
m_frmHoaDonThanhToan.Show();
}
}