Adding an image to SQL database using Visual C#

28,841

Solution 1

The selected file stream should be converted to byte array.

        FileStream FS = new FileStream(filepath, FileMode.Open, FileAccess.Read); //create a file stream object associate to user selected file 
        byte[] img = new byte[FS.Length]; //create a byte array with size of user select file stream length
        FS.Read(img, 0, Convert.ToInt32(FS.Length));//read user selected file stream in to byte array

Now this works fine. Database still shows < Binary data > but it could be converted back to image using memorystream method.

Thanks to all...

Solution 2

Try with something like this:

byte[] fileBytes=System.IO.File.ReadAllBytes("path to file");
System.Data.SqlClient.SqlCommand command = new System.Data.SqlClient.SqlCommand("insert  into table(blob,filename) values (@blob,@name)");
command.Parameters.AddWithValue("blob", fileBytes);
command.Parameters.AddWithValue("name", "filename");
command.ExecuteNonQuery();
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28,841
Jeena
Author by

Jeena

Electronics&amp; Telecommunication engineer

Updated on January 28, 2020

Comments

  • Jeena
    Jeena over 4 years

    I am working on a visual C# program for image processing.I am trying to add image to sql database using Visual C# (Windows forms) and ADO.NET.

    I have converted the image to binary form with filestream method but the image bytes are not getting saved in database. At the database image column, it says < Binary data > and no data is getting saved!

    I have tried many methods for inserting( with and without stored procedures..etc) but always getting the same thing at database.

    private void button6_Click(object sender, EventArgs e)
    {
       try
       {
          byte[] image = null;
          pictureBox2.ImageLocation = textBox1.Text;
          string filepath = textBox1.Text;
          FileStream fs = new FileStream(filepath, FileMode.Open, FileAccess.Read);
          BinaryReader br = new BinaryReader(fs);
          image = br.ReadBytes((int)fs.Length);
          string sql = " INSERT INTO ImageTable(Image) VALUES(@Imgg)";
          if (con.State != ConnectionState.Open)
             con.Open();
          SqlCommand cmd = new SqlCommand(sql, con);
          cmd.Parameters.Add(new SqlParameter("@Imgg", image));
          int x= cmd.ExecuteNonQuery();
          con.Close();
          MessageBox.Show(x.ToString() + "Image saved");
       }
    }
    

    I am not getting error in code. the image got converted and entry is done in database but says < Binary Data > at the sql database.