PB中查询时所用代码

datetime ldt_rq1,ldt_rq2
ldt_rq1 = datetime(date(sle_1.text),00:00:00)
ldt_rq2 = datetime(date(sle_2.text),23:59:59)
dw_1.retrieve(ldt_rq1,ldt_rq2)

string ls_filter
choose case ddlb_1.text
case '编号'
ls_filter = "bh = '"+this.text+"'"
case '结果所见'
ls_filter = "jgsj like '%"+this.text+"%'"
end choose
if this.text = '' then ls_filter = ''
dw_1.setfilter(ls_filter)
dw_1.filter( )