在LINQ to SQL中加入和批量更新

Question

可以用LINQ to SQL编写这样的东西：

UPDATE Table1 
SET CustomerName = t2.Name 
FROM Table1 t1 JOIN Table2 t2
ON t1.TableID = t2.TableID  

Answer 1

var result =  from t1 in context.Table1
              join t2 in context.Table2 on t1.TableID = t2.TableID
              select new {t1, t2};

result.ToList().ForEach(i => i.t1.CustomerName = i.t2.Name);
context.SubmitChanges();