diff --git a/Base/Controller/ACommonCRoom.cs b/Base/Controller/ACommonCRoom.cs
index 67e7eeb..999448b 100644
--- a/Base/Controller/ACommonCRoom.cs
+++ b/Base/Controller/ACommonCRoom.cs
@@ -396,7 +396,7 @@ namespace NP.Base.Controllers
                 }
                 lectnos = string.Join(",", Dao.Get<Lect>("grade.nocompletelectcm", cmnos).Select(s => s.lectno));
             }
-            var lects = Dao.Get<Lect>("grade.nocompletelect", lectnos).Where(w => lectnos.Contains(w.lectno.ToString()));
+            var lects = Dao.Get<Lect>("grade.nocompletelect", lectnos).Where(w => (","+lectnos+",").Contains( ","+w.lectno.ToString()+","));
             var completecount = 0;
             var cancelcount = 0;
             foreach (var lect in lects)