From f3ae83afb51b4ee7bdb9dcd7c756035c7fa19b37 Mon Sep 17 00:00:00 2001
From: stulzq <stulzq@qq.com>
Date: Sun, 19 Aug 2018 16:47:01 +0800
Subject: [PATCH] add use stream method

---
 binding/c#/IP2Region/DBSearcher.cs | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/binding/c#/IP2Region/DBSearcher.cs b/binding/c#/IP2Region/DBSearcher.cs
index b99dba8..72b2566 100644
--- a/binding/c#/IP2Region/DBSearcher.cs
+++ b/binding/c#/IP2Region/DBSearcher.cs
@@ -23,7 +23,7 @@ namespace IP2Region
         /// <summary>
         /// db file access handler
         /// </summary>
-        private FileStream _raf = null;
+        private Stream _raf = null;
 
         /// <summary>
         /// header blocks buffer
@@ -75,6 +75,18 @@ namespace IP2Region
 
         public DbSearcher(string dbFile) : this(null, dbFile) { }
 
+        public DbSearcher(DbConfig dbConfig, Stream dbFileStream)
+        {
+            if (_dbConfig == null)
+            {
+                _dbConfig = dbConfig;
+            }
+
+            _raf = dbFileStream;
+        }
+
+        public DbSearcher(Stream dbFileStream) : this(null, dbFileStream) { }
+
         #region Sync Methods
         /// <summary>
         /// Get the region with a int ip address with memory binary search algorithm.