PB技巧一《在主表中一个编号一个名称，通过输入判断是否编号存在》

string ls_supplier_id
int li_find,li_rtn,i
string ls_bi
DataWindowChild dwchild_outletid
choose case dwo.name

case 'customer_id'
if data ='' or isnull(data) then
messagebox("提示","客户编号不能为空")
return 2
end if
this.getchild('customer_id_1',dwchild_outletid)
dwchild_outletid.settransobject(sqlca)
dwchild_outletid.retrieve()

li_find=dwchild_outletid.find("customer_id ='"+data+"'",1,dwchild_outletid.rowcount())
if li_find<=0 then
messagebox("提示","客户编号不存在")
this.setitem(row,'customer_id_1','')
return 1
end if
// if dw_detail.rowcount()>0 then
// li_rtn= messagebox("提示","对应的分店已改变,是否清空明细数据" , question!,okcancel!,2)
// if li_rtn= 1 then
// for i=dw_detail.rowcount() to 1 step - 1
// dw_detail.deleterow(i)
// next
// //w_retpurchase_app_input.postevent('ue_newrec')
// dw_detail.scrolltorow(dw_detail.insertrow(0))
// dw_detail.setcolumn('aid')
// else
// return 2
// end if
// end if
end choose