Linq to SQL:如何在没有字段上连接，即笛卡尔连接

如何在多个表上进行 Linq To SQL 联接，其中 1 个表应该产生笛卡尔乘积。

为了更清楚地说明，下面是 SQL 查询的示例。

SELECT Table1.MyField, Setup.SomeField
FROM Table1 INNER JOIN Table2 ON Table1.SomeField = Table2.SomeField, Setup

我的Linq to SQL是这样的：

var q = from t1 in db.Table1
        join t2 in db.Table2 on t1.SomeField equals t2.SomeField
        join setup in db.Setup 
        select new {t1.MyField, setup.SomeField};

我在Type inference failed in the call to 'Join'的最后一次加入时收到错误。

var query = from t1 in db.Table1
    from t2 in db.Table2
    select new {t1, t2};

var q = from t1 in db.Table1
        join t2 in db.Table2 on t1.SomeField equals t2.SomeField
        from setup in db.Setup 
        select new {t1.MyField, setup.SomeField};