在先前的操作完成之前，第二操作在此上下文上开始。与Linq Any（）

Question

我正在尝试加快代码执行速度，因此我想看看如果我执行异步操作，我的代码可以执行多快。

问题是在并行循环中我必须做一些检查，现在我正在执行延迟加载，我认为这会导致错误

A second operation started on this context before a previous operation completed. 

现在我有这样的架构

TableATableB - many to many column
TableA - Can have many TableBs 
TableB - Can have many TableAs
TableC - TableB can have many TableCs and TableC can only have 1 tableB

现在，我的代码死的问题是当我这样做的时候

foundTableBColumn.TableCs.Any()

我尝试进行急切加载，但遇到同样的问题

var foundTableBs = dbContext.TableATableB Include(x => x.TableB).ThenInclude(x => x.TableC).Where(x => x.TableAId == 1).Select(x => x.TableA).ToList();


Parallel.ForEach(foundTableBs , (tableB, loopState) =>
                {
                      if(tableB.TableCs.Any(){
}
                });