我正在编写一个LINQ查询来填充listview，但它使用了.ToString()方法，这显然是不允许的。当我使用下面的代码时，我得到了错误消息：
错误：LINQ to Entities无法识别方法“System.String ToString（）”方法，并且此方法无法转换为存储表达式
有没有一种方法可以在LINQ中使用ToString()，或者如果这是不可能的，那么在查询中将DateTime转换为String的解决方案是什么？请知道ReleaseDateName是string，ReleaseDate是DateTime

using (var db = new ReleaseInfo())
{
    lvReleaseInfo.DataSource = (from r in db.MediaReleases
                                join rn in db.ReleaseNames
                                on new { MediaReleaseID = r.MediaReleaseID, CultureCodeID } equals new { rn.MediaReleaseID, rn.CultureCodeID }
                                join plat in db.MediaPlatforms
                                on new { MediaPlatformID = r.MediaPlatformID, CultureCodeID } equals new { plat.MediaPlatformID, plat.CultureCodeID }
                                join pub in db.MediaPublishers
                                on new { MediaPublisherID = r.MediaPublisherID, CultureCodeID } equals new { pub.MediaPublisherID, pub.CultureCodeID }
                                join c in db.Countries
                                on new { CountryID = r.CountryID, CultureCodeID } equals new { c.CountryID, c.CultureCodeID }
                                join rd in db.ReleaseDates
                                on new { MediaReleaseID = r.MediaReleaseID, CultureCodeID } equals new { rd.MediaReleaseID, rd.CultureCodeID }
                                join a in db.AffiliateLinks
                                on new { MediaReleaseID = r.MediaReleaseID, CultureCodeID } equals new { a.MediaReleaseID, a.CultureCodeID }
                                where r.SectionID == SectionID
                                select new
                                {
                                    rn.ReleaseTitle,
                                    plat.MediaPlatformName,
                                    pub.MediaPublisherName,
                                    c.CountryName,
                                    ReleaseDate = (rd.ReleaseDate == null ? rd.ReleaseDateName : rd.ReleaseDate.ToString()),
                                    a.AffiliateLinkAddress
                                }).ToList();
    lvReleaseInfo.DataBind();
}

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