SQL to Linq

SQL：

strQuery = "SELECT A.*, B.LABEL_DESC FROM LBLMATREL A, LBLDEF B"
                               + " WHERE A.FACTORY = B.FACTORY"
                               + " AND A.LABEL_ID = B.LABEL_ID"
                               + " AND A.FACTORY=?"
                               + " AND A.MAT_ID=?"
                               + " AND A.MAT_VER=?"
                               + " AND A.LABEL_ID>=?"
                               + " ORDER BY A.FACTORY ASC"
                               + " , A.MAT_ID ASC"
                               + " , A.LABEL_ID ASC";
 

Linq語句：

 var listResult=ctx.Lblmatrel.Where(t => t.Factory == sFactory && t.MatId == sMatId && t.MatVer == iMatVer &&
                    t.LabelId.CompareTo(sLabelId) >= 0).Join(
                        ctx.Lbldef,
                        a => new { f = a.Factory, id = a.LabelId },
                        b => new { f = b.Factory, id = b.LabelId },
                        (a, b) => new
                        {
                            a,
                            b.LabelDesc
                        }
                        ).OrderBy(t => t.a.Factory).ThenBy(t => t.a.MatId).ThenBy(t => t.a.LabelId).ToList();
                    
 

注：接收變數型別不能是List，因為查詢結果不是單