private void m_cmd_tk_ns_dv_ItemClick(object sender, ItemClickEventArgs e)
{
//F420_Bao_cao_nhan_su_theo_don_vi v_f = new F420_Bao_cao_nhan_su_theo_don_vi();
//f410_bao_cao_so_luong_chat_luong_lao_dong v_frm = new f410_bao_cao_so_luong_chat_luong_lao_dong();
//if (IsExistFormName(v_frm)) return;
//v_frm.MdiParent = this;
//v_frm.Show();
f400_rptth_phan_loai_lao_dong v_frm = new f400_rptth_phan_loai_lao_dong();
if(IsExistFormName(v_frm)) { return; }
v_frm.MdiParent = this;
v_frm.Show();
}