diff --git a/Src/Asp.Net/PgSqlTest/Config.cs b/Src/Asp.Net/PgSqlTest/Config.cs
index c8c29c8d8..4f718ae16 100644
--- a/Src/Asp.Net/PgSqlTest/Config.cs
+++ b/Src/Asp.Net/PgSqlTest/Config.cs
@@ -16,16 +16,16 @@ namespace OrmTest
         /// Account have permission to create database
         /// 用有建库权限的数据库账号
         /// </summary>
-        public static string ConnectionString = "PORT=5432;DATABASE=SqlSugar4xTest;HOST=localhost;PASSWORD=haosql;USER ID=postgres";
+        public static string ConnectionString = "PORT=5433;DATABASE=SqlSugar4xTest;HOST=localhost;PASSWORD=haosql;USER ID=postgres";
         /// <summary>
         /// Account have permission to create database
         /// 用有建库权限的数据库账号
         /// </summary>
-        public static string ConnectionString2 = "PORT=5432;DATABASE=SqlSugar4xTest2;HOST=localhost;PASSWORD=haosql;USER ID=postgres";
+        public static string ConnectionString2 = "PORT=5433;DATABASE=SqlSugar4xTest2;HOST=localhost;PASSWORD=haosql;USER ID=postgres";
         /// <summary>
         /// Account have permission to create database
         /// 用有建库权限的数据库账号
         /// </summary>
-        public static string ConnectionString3 = "PORT=5432;DATABASE=SqlSugar4xTest3;HOST=localhost;PASSWORD=haosql;USER ID=postgres";
+        public static string ConnectionString3 = "PORT=5433;DATABASE=SqlSugar4xTest3;HOST=localhost;PASSWORD=haosql;USER ID=postgres";
     }
 }
diff --git a/Src/Asp.Net/PgSqlTest/Demo/Demo2_Updateable.cs b/Src/Asp.Net/PgSqlTest/Demo/Demo2_Updateable.cs
index 60a5ce9d7..25c6f4e8b 100644
--- a/Src/Asp.Net/PgSqlTest/Demo/Demo2_Updateable.cs
+++ b/Src/Asp.Net/PgSqlTest/Demo/Demo2_Updateable.cs
@@ -64,7 +64,10 @@ namespace OrmTest
             var result71 = db.Updateable<Order>().SetColumns(it => new Order() { Name = "a", CreateTime = DateTime.Now }).Where(it => it.Id == 11).ExecuteCommand();
             //only update name
             var result8 = db.Updateable<Order>(it => it.Name == "Name").Where(it => it.Id == 1).ExecuteCommand();
-            var result81 = db.Updateable<Order>().SetColumns(it => it.Name == "Name" ).Where(it => it.Id == 1).ExecuteCommand();
+            var result81 = db.Updateable<Order>()
+                .SetColumns(it => it.Name == "Name" )
+                  .SetColumns(it => it.CreateTime == DateTime.Now)
+                .Where(it => it.Id == 1).ExecuteCommand();
             //
 
 
diff --git a/Src/Asp.Net/SqlSugar/ExpressionsToSql/Common/SugarParameter.cs b/Src/Asp.Net/SqlSugar/ExpressionsToSql/Common/SugarParameter.cs
index 02068ecc3..f654da37e 100644
--- a/Src/Asp.Net/SqlSugar/ExpressionsToSql/Common/SugarParameter.cs
+++ b/Src/Asp.Net/SqlSugar/ExpressionsToSql/Common/SugarParameter.cs
@@ -129,7 +129,7 @@ namespace SqlSugar
                 if (this.Value != null)
                     this.Value = this.Value.ToString();
             }
-            else if (type.IsEnum())
+            else if (type!=null&&type.IsEnum())
             {
                 this.DbType = System.Data.DbType.Int64;
             }