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var query = _db.Mst_Users
.Where(item => item.CustomerUserId == customerUserId)
.Traverse(item => _db.Mst_Users.Where(parent => item.CustomerUserId == parent.ParentId))
.Select(item =>Convert.ToString(item.CustomerUserId)).ToArray();
在上述查詢我在陣列中獲得customerUserId
S:INT []數組包含LINQ查詢擲誤差定義
int[] ids = query;
從上述int數組:
var getgroup = from item in _db.Mst_Group
where ids.Contains(item.CustomerUserId)
select item;
但是,它顯示以下錯誤:
int[] does not contain a definition for Contains and the best extension method overload system.linq.iqueryable.contains<tsource>
感謝它對我非常有用 – user2021740