EntityFramework.Extended 实现Linq 动态查询和动态条件

    
　　ERPContent erp = new ERPContent();
    
    string s = "new (  state_key , state_name , act01, act02)";
    string w = "state_key==1001 && act01 == true";
         
    var lll = (from mst in erp.StateMsts
               join dt in erp.States
                on mst.state_key equals dt.state_key
               select new
               {
                   mst.state_key,mst.state_des, mst.state_name, act01=mst.isactive ,
                   dt.state_value, act02= dt.isactive

               }
                ).Select(s).Where(w);