C#& linq

Using Linq to ADO.NET Entity Data Model 

參考

http://docs.telerik.com/devtools/wpf/consuming-data/linq-to-ado-net-entity-data-model#using-linq-to-adonet-entity-data-model

Linq to DataSet 跨資料表查詢　

參考

https://msdn.microsoft.com/zh-tw/library/bb386969(v=vs.90).aspx?ranMID=24542&ranEAID=TnL5HPStwNw&ranSiteID=TnL5HPStwNw-7ZmpCB4adJKzu6MFMwDASQ&tduid=(6c636951eb8bc35521fbb1001cb73a70)(256380)(2459594)(TnL5HPStwNw-7ZmpCB4adJKzu6MFMwDASQ)()