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store image and retrieval from sql database

Posted on 2011-02-18
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Last Modified: 2012-05-11
i am a newbie to visual basic .
by the code shown i can upload images to sql server.i tried many ways somehow i cant retrieve them and save them in a specific folder.
any help ?


table name :>  picture_pool

column name    data type
pic_id                 int
photo                 image
con.Open()

            Dim sql As String = "INSERT INTO picture_pool VALUES(@pic_id,@photo)"
            
            Dim cmd As New SqlCommand(sql, con)

            cmd.Parameters.AddWithValue("@pic_id", 1)

            Dim ms As New MemoryStream()

            '''''if i dont use msgbox the image does not appear ?? 
            MsgBox("File is Uploaded to server")

            PictureBox1.Image.Save(ms, PictureBox1.Image.RawFormat)

            Dim data As Byte() = ms.GetBuffer()

            Dim p As New SqlParameter("@photo", SqlDbType.Image)

            p.Value = data

            cmd.Parameters.Add(p)

            Try
                cmd.ExecuteNonQuery()
            Catch ex As Exception
            End Try

            con.Close()

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Question by:2dyazilim
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6 Comments
 
LVL 19

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Manoj Patil earned 400 total points
ID: 34924103
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Assisted Solution

by:daryal
daryal earned 400 total points
ID: 34924118
Hello,
First of all, please consider if storing images in a sql server is a good decision. I do not know the project details, but generally it is wise to store images on the file system and store only the path or the name on the sql server.
check the links:
http://social.msdn.microsoft.com/Forums/en-US/vbgeneral/thread/52655606-6597-482b-81cd-9682115d1d7f
http://social.msdn.microsoft.com/Forums/en/vblanguage/thread/5bbe8094-9936-4aca-bf6c-f7674b5eab2c
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by:Raheman M. Abdul
Raheman M. Abdul earned 400 total points
ID: 34924119
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Author Comment

by:2dyazilim
ID: 34924391
when i dont put the msgbox on the code above . it  doest not retrieve the image..  even if it is true. anysolution for that ?
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LVL 7

Assisted Solution

by:EYoung
EYoung earned 400 total points
ID: 34927411
I store images in the file system and keep just the path in SQL.  That way the users can modify the images directly without the need of a program.  It works great.
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by:Mohamed Abowarda
Mohamed Abowarda earned 400 total points
ID: 34932667
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