.net - C# Devexpress xtragird with multiple lookupedit in rows -

i developing windows application using c# uses devexpress tools. have grid contains more 1 lookup edit in single row. have bind each row in such manner when first lookup edit changes adjacent lookup edit in same row in bind. can dynamically add rows ' add row' button.

how can bind second lookupedit on change of first lookup edit. on each value change 1 row affected previous should remain same.

i've been stuck days - can me?

thanks in advance.

here workouts

private void legridsubinventory_editvaluechanged(object sender, eventargs e)         {             gvreservation.posteditor();             gvreservation.updatecurrentrow();             gridview view = gvreservation;             var obj = view.getfocusedrow();             int locationid = common.intcast(leoutlets.editvalue);             lookupedit sub = (lookupedit)sender;             view.setrowcellvalue(view.focusedrowhandle, view.columns["itemid"], -1);             view.setrowcellvalue(view.focusedrowhandle, view.columns["itemdesc"], "");             view.setrowcellvalue(view.focusedrowhandle, view.columns["primaryuom"], "");             view.setrowcellvalue(view.focusedrowhandle, view.columns["onhandqty"], 0);             view.setrowcellvalue(view.focusedrowhandle, view.columns["onhandqty"], 0);             if (sub.itemindex != -1)             {                 int subid = common.intcast(sub.editvalue);                 if (subid != -1)                 {                     datatable dtitems = cdm.getallitemsbysubinventory(locationid, subid);                     datarow locrow = dtitems.newrow();                     locrow["itemid"] = -1;                     locrow["itemcode"] = "--select--";                     dtitems.rows.insertat(locrow, 0);                      rleitemcode.datasource = dtitems;                     rleitemcode.displaymember = "itemcode";                     rleitemcode.valuemember = "itemid";                   }             }         } 

as know lookuedit has same datasource rows.
need update datasource on 2 occasions
1)on focusrowchanged event of gridview
2)on on cellvaluechanged event (for first column)

so inside above events call function updatelokkupdatasource.
inside function focused row(so can read first field) , update datasource

don't forget handle customdisplaytext event of second lookupedit(you need because values not exist in new datasource)