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我试图sql查询写入LINQ:如何将两个连接在LINQ
查询:
select s.s_name, sub.state, sub.to, sub.evaluation, sub.task_id
from submit_task sub
join student s on s.id=sub.student_id
join task t on t.id=sub.task_id
where t.t_name = "bbbb";
的Linq:
var subTask = (from sub in ado.submit_task
join s in ado.student on sub.student_id equals s.id
join t in ado.task on sub.task_id equals t.id
where t.t_name == listView3.SelectedItems[0].Text
select new { s.s_name, sub.state, sub.to,
sub.evaluation, sub.task_id });
但这不工作。当我尝试dubugg时,没有发生任何事情,没有任何错误或结果。你看到一些错误吗?
thankk你