diff --git a/Learun.Framework.Ultimate V7/Learun.Framework.Module/Learun.Application.Module/Learun.Application.TwoDevelopment/EducationalAdministration/TeachClass/TeachClassService.cs b/Learun.Framework.Ultimate V7/Learun.Framework.Module/Learun.Application.Module/Learun.Application.TwoDevelopment/EducationalAdministration/TeachClass/TeachClassService.cs
index 3996a2ed1..d3da1cea0 100644
--- a/Learun.Framework.Ultimate V7/Learun.Framework.Module/Learun.Application.Module/Learun.Application.TwoDevelopment/EducationalAdministration/TeachClass/TeachClassService.cs	
+++ b/Learun.Framework.Ultimate V7/Learun.Framework.Module/Learun.Application.Module/Learun.Application.TwoDevelopment/EducationalAdministration/TeachClass/TeachClassService.cs	
@@ -732,7 +732,7 @@ namespace Learun.Application.TwoDevelopment.EducationalAdministration
             {
                 int ID = Convert.ToInt32(keyValue);
                 var teachclassEntity = this.BaseRepository("CollegeMIS").FindEntity<TeachClassEntity>(ID);
-                return this.BaseRepository("CollegeMIS").FindList<EmpInfoEntity>($"select * from EmpInfo e where EmpNo in ({teachclassEntity.EmpNo}) ");
+                return this.BaseRepository("CollegeMIS").FindList<EmpInfoEntity>($"select * from EmpInfo e where EmpNo in ('{teachclassEntity.EmpNo.Replace(",", "','")}') ");
             }
             catch (Exception ex)
             {