I am using this to get image bytes from the database
cmd.CommandText = \"select imagedate from projectimages where imagename = \'\" + _
ListBox1.Text + \
here's my code to show blob file to picturebox in vb.net. hope it helps
Dim connstring As String = "Database=pmk;data source=localhost;user id=root;password="
Dim Sql As String = "select * from mastermahasiswa where Nim='" & TextBox1.Text & "'"
Dim conn As New MySqlConnection(connstring)
Dim cmd As New MySqlCommand(Sql, conn)
Dim dr As MySqlDataReader = Nothing
conn.Open()
dr = cmd.ExecuteReader()
dr.Read()
Dim imagebytes As Byte() = CType(dr("Foto"), Byte())
Using ms As New IO.MemoryStream(imagebytes)
PictureBox1.Image = Image.FromStream(ms)
PictureBox1.SizeMode = PictureBoxSizeMode.StretchImage
End Using
conn.Close()