Re: [��]SQL server 2000 ��α��ͼƬ

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#364

From: Dem��ɫ�н��
Date: Tue, 10 Mar 2009 10:27

30 lines
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http://petesbloggerama.blogspot.com/2007/03/read-write-large-value-blob-types
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System.Data.SqlTypes.SqlBytes myBytes;
System.Data.SqlClient.SqlDataReader dr;
System.Data.SqlClient.SqlCommand cmd = new 
System.Data.SqlClient.SqlCommand();
dr = cmd.ExecuteReader(CommandBehavior.SequentialAccess); // 
SequentialAccess allows chunked reading with offsets, etc.

myBytes = dr.GetSqlBytes(1); // return a SqlBytes type containing the 
entire contents of the column
System.IO.Stream s = myBytes.Stream; // get the stream property

Bitmap B = new Bitmap(s);
B.Save("MyPicture.bmp");


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From: ZAKU.bbs@bbs.sjtu.edu.cn (Dem����ɫ�н�����)
Newsgroups: cn.bbs.comp.database
Subject: Re: [����]SQL server 2000 ��α���ͼƬ
Date: 10 Mar 2009 10:27:31 GMT
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Re: [��]SQL server 2000 ��α��ͼƬ