diff --git a/FreeSql/Interface/IAop.cs b/FreeSql/Interface/IAop.cs
index 23cfd63e..5a910569 100644
--- a/FreeSql/Interface/IAop.cs
+++ b/FreeSql/Interface/IAop.cs
@@ -306,7 +306,7 @@ namespace FreeSql.Aop
             }
         }
         private object _value;
-        internal bool IsChanged { get; private set; }
+        public bool IsChanged { get; private set; }
     }
     public enum AutoValueType { Update, Insert }
 }
\ No newline at end of file
diff --git a/FreeSql/Internal/CommonProvider/InsertProvider.cs b/FreeSql/Internal/CommonProvider/InsertProvider.cs
index 4a3da08e..70210226 100644
--- a/FreeSql/Internal/CommonProvider/InsertProvider.cs
+++ b/FreeSql/Internal/CommonProvider/InsertProvider.cs
@@ -563,7 +563,7 @@ namespace FreeSql.Internal.CommonProvider
                     {
                         var auditArgs = new Aop.AuditValueEventArgs(Aop.AutoValueType.Insert, col, _table.Properties[col.CsName], val);
                         _orm.Aop.AuditValue(this, auditArgs);
-                        if (auditArgs.Value != null)
+                        if (auditArgs.IsChanged)
                             col.SetMapValue(d, val = auditArgs.Value);
                     }
                     if (_noneParameter)
diff --git a/FreeSql/Internal/CommonProvider/UpdateProvider.cs b/FreeSql/Internal/CommonProvider/UpdateProvider.cs
index 4d2ac1f2..5589ede6 100644
--- a/FreeSql/Internal/CommonProvider/UpdateProvider.cs
+++ b/FreeSql/Internal/CommonProvider/UpdateProvider.cs
@@ -610,7 +610,7 @@ namespace FreeSql.Internal.CommonProvider
                         {
                             var auditArgs = new Aop.AuditValueEventArgs(Aop.AutoValueType.Update, col, _table.Properties[col.CsName], val);
                             _orm.Aop.AuditValue(this, auditArgs);
-                            if (auditArgs.Value != null)
+                            if (auditArgs.IsChanged)
                                 col.SetMapValue(_source.First(), val = auditArgs.Value);
                         }
                         if (_noneParameter)
@@ -656,7 +656,7 @@ namespace FreeSql.Internal.CommonProvider
                             {
                                 var auditArgs = new Aop.AuditValueEventArgs(Aop.AutoValueType.Update, col, _table.Properties[col.CsName], val);
                                 _orm.Aop.AuditValue(this, auditArgs);
-                                if (auditArgs.Value != null)
+                                if (auditArgs.IsChanged)
                                     col.SetMapValue(_source.First(), val = auditArgs.Value);
                             }
                             if (_noneParameter)
diff --git a/Providers/FreeSql.Provider.Oracle/Curd/OracleInsert.cs b/Providers/FreeSql.Provider.Oracle/Curd/OracleInsert.cs
index 6980bab6..97745f0f 100644
--- a/Providers/FreeSql.Provider.Oracle/Curd/OracleInsert.cs
+++ b/Providers/FreeSql.Provider.Oracle/Curd/OracleInsert.cs
@@ -74,7 +74,7 @@ namespace FreeSql.Oracle.Curd
                     {
                         var auditArgs = new Aop.AuditValueEventArgs(Aop.AutoValueType.Insert, col, _table.Properties[col.CsName], val);
                         _orm.Aop.AuditValue(this, auditArgs);
-                        if (auditArgs.Value != null)
+                        if (auditArgs.IsChanged)
                             col.SetMapValue(d, val = auditArgs.Value);
                     }
                     if (_noneParameter)