var tg = $('#tg');var opts = tg.treegrid('options');var row = tg.treegrid('find', your_row_id); // find the row by idvar tr = tg.treegrid('options').finder.getTr(tg[0],row[opts.idField]);var cell = tr.find('div.datagrid-cell-rownumber');var value = cell.text();alert(value);