如何通过LINQ查询申请订单？

Question

在c＃linq中，我有这段有效的代码

Event event = mViewModel.findSpecificEvent(1);
// An example to pass it to recyclerVeiw
recyclerViewAdapter.setEvent(event);

我有这个

    private IQueryable<v_CompanyInquiryInfo> SearchCompany(string pCompanyName)
    {
        var mCompany = from d in db.v_CompanyInquiryInfo
                       where d.CompanyName.ToLower().Equals(pCompanyName)
                       select ((v_CompanyInquiryInfo)d);
        return mCompany;
    }

也可以。但是，我希望第二个函数的返回类型为 private IQueryable SearchCompanies(string pValues) { string mValues = pValues; foreach (string lWord in iRestrictedWords) { mValues.Replace(lWord, ""); } var mSearchArray = pValues.Split(new[] { ' ' }, StringSplitOptions.RemoveEmptyEntries); var mCompanyCriteria = db.v_CompanyInquiryInfo.AsExpandable().Where(TradingInquiryController.CompanyContainsSearchTerms(mSearchArray)); var mCompanies = mCompanyCriteria .Select(x => new { x.CompanyName, x.CompanyID, x.SearchTags, Rank = mSearchArray.Sum(s => ((x.SearchTags.Length - x.SearchTags.Replace(s, "").Length) / s.Length)) }); var mResults = mCompanies.OrderByDescending(o => o.Rank).Skip(0).Take(20); return mResults; } 。问题是添加了IQueryable<v_CompanyInquiryInfo>个新的动态列，然后按它排序。如何应用相同的顺序但不为其创建新列，然后将强制类型转换应用于Rank。这样我就可以返回v_CompanyInquiryInfo。我无法弄清楚它的语法。它还可以返回所有列。

谢谢

Answer 1

您无需创建该属性：

private IQueryable SearchCompanies(string pValues)
    {
        string mValues = pValues;
        foreach (string lWord in iRestrictedWords)
        {
            mValues.Replace(lWord, "");
        }
        var mSearchArray = pValues.Split(new[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
        var mCompanyCriteria = db.v_CompanyInquiryInfo.AsExpandable().Where(TradingInquiryController.CompanyContainsSearchTerms(mSearchArray));

        var mCompanies = mCompanyCriteria        
.OrderByDescending(x => mSearchArray.Sum(s => ((x.SearchTags.Length - x.SearchTags.Replace(s, "").Length) / s.Length))
;

        //var mResults =  mCompanies.Skip(0).Take(20);
        return mCompanies;
    }