jiaoye6789 2016-07-10 07:27 采纳率: 0%
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EF 做联合,怎么给关联的表加条件

A表
ID,NAME,BID
B表
ID,NAME,STATE

  var leftJoinSql = from a in db.A
                              join b in db.B on a.ID equals b.ID into bb
                              from bbb in bb.DefaultIfEmpty()
                              select new
                              {
                                   aname= a.NAME,
                                   bname = bbb==null?"":bbb.NAME
                              };

我想加个过滤条件,只关联B表STATE=0的字段

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  • jiaoye6789 2016-07-10 08:12
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    var leftJoinSql = from a in db.A
    join b in db.B.where(s=>s.state==0) on a.ID equals b.ID into bb
    from bbb in bb.DefaultIfEmpty()
    select new
    {
    aname= a.NAME,
    bname = bbb==null?"":bbb.NAME
    };

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