linq-to-sql - 编译查询和 "Parameters cannot be sequences"

Question

我认为编译的查询会执行与 DataContext 相同的查询转换。然而，当我尝试使用带有 .Contains 方法调用的查询时出现运行时错误。我哪里错了？

//private member which holds a compiled query.
Func<DataAccess.DataClasses1DataContext, List<int>, List<DataAccess.TestRecord>>
  compiledFiftyRecordQuery = System.Data.Linq.CompiledQuery.Compile
  <DataAccess.DataClasses1DataContext, List<int>, List<DataAccess.TestRecord>>
  ((dc, ids) => dc.TestRecords.Where(tr => ids.Contains(tr.ID)).ToList());

//this method calls the compiled query.
public void FiftyRecordCompiledQueryByID()
{
  List<int> IDs = GetRandomInts(50);

  //System.NotSupportedException
  //{"Parameters cannot be sequences."}

  List<DataAccess.TestRecord> results = compiledFiftyRecordQuery
    (myContext, IDs);         
}

Answer 1

This article有你的答案:

Queries with list parameters cannot be precompiled because the translation of the query is dependent on the number of items in the list.