Question

我正在使用LINQPad处理以下问题:

var pds = (from p in Projects
            group p by p.FiscalYearVariables.FiscalYear into grouped
            where grouped.Count() > 0
            select new { 
                fiscalYear = grouped.Key,
                projectDetails = grouped.SelectMany(a=>a.ProjectDetails),
                Programs = (from pwbs in Programs.SelectMany(a =>a.ProgramWbsNumbers)
                            let ds = pwbs.WbsNumbers.DisplayString
                            where pwbs.Programs.IsActive
                            && (from w in WbsNumbers
                                where w.DisplayString.StartsWith(ds)
                                select w).Any()
                            select pwbs.Programs)
            });

            pds.Dump();

我犯了错误:

不支持例外: 只能支持对客户进行评价的论点。先导方法。

我不知道如何纠正这一错误。在<代码>上,我需要打上每个<代码>Program。 WbsNumber 始于 WbsNumber contained in ProgramWbsNumbers if that helps.

“enterography

Answer 1

为此:

where SqlMethods.Like(w.DisplayString, ds + "%")

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