Question

我有 LINQ 查询：

var qty = db.WebOEOrdD.Sum(d => d.QTY);
var unitPrice = db.IcPricP.Select(p => decimal.Round(p.UNITPRICE, 2));

var query = from item in db.OrderFormDump
            join icp in db.IcPricP on item.ITEMNO.Replace("-", "") equals icp.ITEMNO
            join itemInfo in db.WebItemInfo on item.ITEMNO equals itemInfo.ITEMNO
            join weboeordh in db.WebOEOrdH on username equals weboeordh.USER
            join weboeordd in db.WebOEOrdD on new { itemno = item.ITEMNO.Replace("-", ""), orduniq = weboeordh.ORDUNIQ } equals new { itemno = weboeordd.ITEMNO, orduniq = weboeordd.ORDUNIQ }
            join weboeordsubmit in db.WebOEOrdSubmit on weboeordd.ORDUNIQ equals weboeordsubmit.ORDUNIQ where weboeordsubmit.ORDUNIQ != weboeordd.ORDUNIQ
            join webloginaccess in db.WebLoginAccess on username equals  webloginaccess.USER
            join arcus in db.Arcus on webloginaccess.CUSTID equals arcus.IDCUST
            where (item.ALLOWINBC == "Yes" && item.ALLOWINAB == "Yes")
            && icp.PRICELIST == arcus.PRICLIST
            && icp.CURRENCY == "CDN" && icp.DPRICETYPE == 1
            && (item.BASEDESCRIPTION.Contains(searchword) || item.DESCRIPTION.Contains(searchword) || item.CATEGORY.Contains(searchword) || item.FOODACCSPEC.Contains(searchword) || item.ITEMBRAND.Contains(searchword) || item.ITEMGROUP.Contains(searchword) || item.ITEMNO.Contains(searchword) || item.ITEMSUBTYPE.Contains(searchword) || item.ITEMTYPE.Contains(searchword) || itemInfo.INFO.Contains(searchword) || item.UPC.Contains(searchword) || item.UPC.Substring(2, 10).Contains(searchword))
            orderby item.BASEDESCRIPTION
            group item by new { item.ITEMNO, item.BASEDESCRIPTION, itemInfo.INFO, item.UPC, unitPrice, item.CASEQTY, qty } into items
            select new { items.Key.ITEMNO, items.Key.BASEDESCRIPTION, items.Key.INFO, items.Key.UPC, unitPrice, items.Key.CASEQTY, qty };

我收到此错误：

用于调用＆＃39; GroupBy＆＃39;的键选择器类型方法在底层商店提供商中无法比较。

我正在以这种方式编写LINQ查询，因为我试图从此SQL查询转换它：

SELECT orderformdump.itemno,basedescription,info,upc,CAST(UNITPRICE AS DECIMAL(18,2)),caseqty, sum(qty) AS userquantity
FROM [DataWarehouse].[dbo].[ORDERFORMDUMP] 
LEFT JOIN PPPLTD.dbo.ICPRICP ON replace([DataWarehouse].[dbo].[ORDERFORMDUMP].[ITEMNO],'-','') = ICPRICP.ITEMNO
LEFT JOIN PPPLTD.dbo.WEBITEMINFO ON ORDERFORMDUMP.ITEMNO = WEBITEMINFO.ITEMNO
LEFT JOIN pppltd.dbo.weboeordh ON [user] = 'brian'
LEFT JOIN pppltd.dbo.weboeordd ON pppltd.dbo.WEBOEORDD.ITEMNO = REPLACE(datawarehouse.dbo.ORDERFORMDUMP.ITEMNO,'-','') and weboeordd.ORDUNIQ = weboeordh.orduniq
Left JOIN pppltd.dbo.weboeordsubmit ON weboeordsubmit.orduniq = weboeordd.ORDUNIQ and weboeordd.ORDUNIQ != weboeordsubmit.orduniq
LEFT JOIN PPPLTD.dbo.WEBLOGINACCESS ON WEBLOGINACCESS.[USER] = 'brian'
LEFT JOIN PPPLTD.dbo.ARCUS ON ARCUS.IDCUST = WEBLOGINACCESS.CUSTID
where (allowinbc = 'Yes' or allowinab = 'Yes') 
AND [PRICELIST] = ARCUS.PRICLIST 
and [CURRENCY] = 'CDN' and DPRICETYPE = 1
and (itemgroup like '%' + @search + '%' or itemtype like '%' + @search + '%' or itembrand like '%' + @search + '%' 
or subcat  like '%' + @search + '%' or orderformdump.description  like '%' + @search + '%' or basedescription like '%'+ @search + '%' 
or orderformdump.ITEMNO like '%'+@search+'%' or UPC like '%'+@search+'%' or (select top 1 1 from pppltd.dbo.ICITEMO where OPTFIELD like 'UPC%' and VALUE like '%'+@search+'%' 
and ITEMNO = DataWarehouse.dbo.ORDERFORMDUMP.itemno) is not null) 
group by ORDERFORMDUMP.ITEMNO,BASEDESCRIPTION,info,UPC,CAST(UNITPRICE AS DECIMAL(18,2)),caseqty
order by basedescription

并且我不太确定如何转换如此长的查询。

更新

由于我的unitPrice和qty变量，我收到此错误。删除后，我不再有错误。

用于调用＆＃39; GroupBy＆＃39;的密钥选择器类型方法在底层提供程序中无法比较

0 个答案: