按位LINQ结果到字典

Question

我需要使用按位运算符查询表以生成字典结果。在谈到LINQ时，我远非专业人士，我有以下几点：

    return (Dictionary<string, bool>) (from r in db.LocationVisibilities
                                       where (r.Code & (int) permissionLevel) != 0 //bitwise statement in where clause
                                       select new
                                                  {
                                                      r.Item, value = Boolean.Parse(r.Attribute.ToString())
                                                  });

Answer 1

您不能将查询转换为类似的字典，您可以调用ToDictionary函数，它将为您处理所有细节。

var dict=
   (from r in db.LocationVisibilities
    where (r.Code & (int) permissionLevel) != 0 //bitwise statement in where clause
    select new {
      r.Item, value = Boolean.Parse(r.Attribute.ToString())
    }).ToDictionary(w=>w.Item, w=>w.value);