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I am trying to store a image from a picture box (frontPictureBox) to a SQL DB table called Music. I realize I have to convert it to a Byte Array. But when I try retrieving it from the database I end up with a black background in the pictureBox.

Here is the code:

C#
SqlConnection con = new SqlConnection("Server=.;database=CollectionDb;integrated security=true");
           
            SqlCommand com = new SqlCommand("insert into tblMusic(fldCode,fldPic) values(1,@Pic)", con);

            
            MemoryStream stream=new MemoryStream();
            
            frontPictureBox.Image.Save(stream,System.Drawing.Imaging.ImageFormat.Jpeg);

            
            byte[] pic=stream.ToArray();

            com.Parameters.AddWithValue("@Pic", pic);
            try
            {
                con.Open();
                com.ExecuteNonQuery();
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
            }
            finally
            {
                con.Close();
            }


Now the program is throwing a error.
Posted
Updated 3-Jul-15 5:55am
v2
Comments
PIEBALDconsult 3-Jul-15 11:59am    
Might it be that the database column has the wrong datatype?
The cose you show seems OK, but what about the code to retrieve from the database?

1 solution

JPEG doesn't support transparency. So you need to fill the background with some color or save it as PNG instead of JPEG.

Good luck!
 
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