From d97e6f98be4b4937480b1c7d762b834bb57ff5fe Mon Sep 17 00:00:00 2001
From: sunkaixuan <610262374@qq.com>
Date: Sat, 26 Aug 2017 14:51:57 +0800
Subject: [PATCH] performance optimization

---
 .../Abstract/DbBindProvider/IDataRecordExtensions.cs      | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/Src/Asp.Net/SqlSugar/Abstract/DbBindProvider/IDataRecordExtensions.cs b/Src/Asp.Net/SqlSugar/Abstract/DbBindProvider/IDataRecordExtensions.cs
index e289d8730..ac2fd54dd 100644
--- a/Src/Asp.Net/SqlSugar/Abstract/DbBindProvider/IDataRecordExtensions.cs
+++ b/Src/Asp.Net/SqlSugar/Abstract/DbBindProvider/IDataRecordExtensions.cs
@@ -53,11 +53,11 @@ namespace SqlSugar
 
         public static DateTime? GetConvertDateTime(this IDataRecord dr, int i)
         {
-            if (dr.IsDBNull(i))
-            {
-                return null;
-            }
             var reval = dr.GetDateTime(i);
+            if (reval == DateTime.MinValue)
+            {
+                return null; ;
+            }
             return reval;
         }