void m_cmd_quan_ly_don_vi_cong_tac_Click(object sender, EventArgs e)
 {
     try
     {
         F101_dm_don_vi v_frm = new F101_dm_don_vi();
         v_frm.ShowDialog();
     }
     catch (Exception v_e)
     {
         CSystemLog_301.ExceptionHandle(v_e);
     }
 }
 private void m_cmd_danh_muc_don_vi_ItemClick(object sender, ItemClickEventArgs e)
 {
     try
     {
         F101_dm_don_vi v_frm = new F101_dm_don_vi();
         if(IsExistFormName(v_frm)) return;
         v_frm.MdiParent = this;
         v_frm.Show();
     }
     catch(Exception v_e)
     {
         CSystemLog_301.ExceptionHandle(v_e);
     }
 }