几个表关联以后,为什么getitemstring出错呢??
我的数据窗口是由几个表取出字段的,窗口sql语句如下
SELECT "ckch"."goodsid",
"goodstable"."pmgg",
"jldw"."jldw_name",
"ckch"."xkc"
FROM "ckch",
"goodstable",
"jldw"
WHERE ( "goodstable"."hpbm" = "ckch"."goodsid" ) and
( "goodstable"."jldw_id" = "jldw"."jldw_id" )
现在,我
string str
str=dw_1.getitemstring(r,"goodsid") //该字段为varchar型
总是出错!
望大侠给予解决!