diff --git a/SGGL/BLL/CQMS/Check/CheckControlService.cs b/SGGL/BLL/CQMS/Check/CheckControlService.cs
index a0ae87aa..efd386c6 100644
--- a/SGGL/BLL/CQMS/Check/CheckControlService.cs
+++ b/SGGL/BLL/CQMS/Check/CheckControlService.cs
@@ -195,37 +195,43 @@ namespace BLL
             else
                 return null;
         }
+
         /// <summary>
         /// 修改质量检查与控制
         /// </summary>
         /// <param name="CheckControl"></param>
         public static void UpdateCheckControl(Model.Check_CheckControl CheckControl)
         {
-            Model.SGGLDB db = Funs.DB;
-            Model.Check_CheckControl newCheckControl = db.Check_CheckControl.First(e => e.CheckControlCode == CheckControl.CheckControlCode);
-            newCheckControl.DocCode = CheckControl.DocCode;
-            newCheckControl.ProposeUnitId = CheckControl.ProposeUnitId;
-            newCheckControl.UnitWorkId = CheckControl.UnitWorkId;
-            newCheckControl.UnitId = CheckControl.UnitId;
-            newCheckControl.CheckDate = CheckControl.CheckDate;
-            newCheckControl.IsSubmit = CheckControl.IsSubmit;
-            newCheckControl.SubmitMan = CheckControl.SubmitMan;
-            newCheckControl.IsOK = CheckControl.IsOK;
-            newCheckControl.CNProfessionalCode = CheckControl.CNProfessionalCode;
-            newCheckControl.QuestionType = CheckControl.QuestionType;
-            newCheckControl.CheckSite = CheckControl.CheckSite;
-            newCheckControl.QuestionDef = CheckControl.QuestionDef;
-            newCheckControl.LimitDate = CheckControl.LimitDate;
-            newCheckControl.RectifyOpinion = CheckControl.RectifyOpinion;
-            newCheckControl.AttachUrl = CheckControl.AttachUrl;
-            newCheckControl.HandleWay = CheckControl.HandleWay;
-            newCheckControl.RectifyDate = CheckControl.RectifyDate;
-            newCheckControl.ReAttachUrl = CheckControl.ReAttachUrl;
-            newCheckControl.State = CheckControl.State;
-            newCheckControl.SaveHandleMan = CheckControl.SaveHandleMan;
+            using (var db = new Model.SGGLDB(Funs.ConnString))
+            {
+                Model.Check_CheckControl newCheckControl = db.Check_CheckControl.First(e => e.CheckControlCode == CheckControl.CheckControlCode);
+                newCheckControl.DocCode = CheckControl.DocCode;
+                newCheckControl.ProposeUnitId = CheckControl.ProposeUnitId;
+                newCheckControl.UnitWorkId = CheckControl.UnitWorkId;
+                newCheckControl.UnitId = CheckControl.UnitId;
+                newCheckControl.CheckDate = CheckControl.CheckDate;
+                newCheckControl.IsSubmit = CheckControl.IsSubmit;
+                newCheckControl.SubmitMan = CheckControl.SubmitMan;
+                newCheckControl.IsOK = CheckControl.IsOK;
+                newCheckControl.CNProfessionalCode = CheckControl.CNProfessionalCode;
+                newCheckControl.QuestionType = CheckControl.QuestionType;
+                newCheckControl.CheckSite = CheckControl.CheckSite;
+                newCheckControl.QuestionDef = CheckControl.QuestionDef;
+                newCheckControl.LimitDate = CheckControl.LimitDate;
+                newCheckControl.RectifyOpinion = CheckControl.RectifyOpinion;
+                newCheckControl.AttachUrl = CheckControl.AttachUrl;
+                newCheckControl.HandleWay = CheckControl.HandleWay;
+                newCheckControl.RectifyDate = CheckControl.RectifyDate;
+                newCheckControl.ReAttachUrl = CheckControl.ReAttachUrl;
+                newCheckControl.State = CheckControl.State;
+                newCheckControl.SaveHandleMan = CheckControl.SaveHandleMan;
+                newCheckControl.IsUpdate = null;
 
-            db.SubmitChanges();
+                db.SubmitChanges();
+            }
         }
+
+
         public static List<Model.Check_CheckControl> GetListDataForApi(string state, string name, string projectId, int index, int page)
         {
             using (var db = new Model.SGGLDB(Funs.ConnString))