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c# - 不支持客户端 GroupBy - 修复

问题描述

如何修复此查询以满足新的 .NET Core 3 更新？

   var rtn =
            from fav in _context.AdvertFavorite
            join advert in _context.Adverts on fav.AdvertID equals advert.AdvertID
            join blob in _context.Blobs on advert.AdvertID equals blob.AdvertID
            join user in _userManager.Users on advert.UserID equals user.Id
            where fav.UserID == usrid
            group new { blob, user, advert } by new { advert.AdvertID } into grp
            select grp;

        var rtn1 = rtn.ToList();

        return rtn1;

标签： c#sqliteasp.net-coreasp.net-core-3.1

解决方案

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