我想让我的filter（）过滤时不区分大小写，改怎么做
string DWfilter
string ss
ss=trim(sle_1.text)
DWfilter = "productname like'%" + ss + "%'"
dw_1.setfilter( dwfilter)
dw_1.filter( )
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DWfilter = "upper(productname) like'%" + upper(ss) + "%'"
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頂一個
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