怎樣在vb.net中將圖片存入SQL Server 2000並能讀出來使用?

來源:互聯網
上載者:User
在資料庫中建一個Img表,其中包含一個Img欄位,類型為Image或Binary
'將Bytes存入資料庫
Dim Stream As New IO.MemoryStream
PictureBox1.Image.Save(Stream, System.Drawing.Imaging.ImageFormat.Bmp)
Stream.Flush()
Dim Bytes As Byte() = Stream.ToArray
Dim SQL As String = "insert into Img values (@bytes) "
Dim command As New SqlClient.SqlCommand(SQL, Connection)
command.Parameters.Add("@bytes", SqlDbType.Binary).Value = Bytes
command.ExecuteNonQuery

'讀取
Dim Command As New SqlClient.SqlCommand(SQL, Connection)
Dim Reader As SqlClient.SqlDataReader = Command.ExecuteReader()
Dim Bytes as Byte()=Reader.Item("Img")
Dim mStream As New IO.MemoryStream
mStream.Write(Bytes, 0, Bytes.Length)
mStream.Flush()
Dim Img As New Bitmap(mStream)
PictureBox1.Image = Img

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