Наследование: System.Windows.Forms.Form
 void m_cmd_tham_so_bang_luong_ItemClick(object sender, ItemClickEventArgs e)
 {
     try
     {
         f405_bao_cao_thong_tin_tinh_luong v_frm = new f405_bao_cao_thong_tin_tinh_luong();
         if(IsExistFormName(v_frm)) return;
         v_frm.MdiParent = this;
         v_frm.Show();
         //f301_quy_trinh_tinh_luong_v2 v_frm = new f301_quy_trinh_tinh_luong_v2();
         //if(IsExistFormName(v_frm)) return;
         //v_frm.MdiParent = this;
         //v_frm.Show();
     }
     catch(Exception v_e)
     {
         CSystemLog_301.ExceptionHandle(v_e);
     }
 }