Question

I want to add a row from my form to the database, this is the code I used for it :

private Connexion connexion = new Connexion();
private SqlDataAdapter daAuteur;
private byte[] imgData;

     class Connexion
        {
            public DataSet ds = new DataSet();
            public SqlConnection cnx = new SqlConnection("Data Source=MAC-BOOK-AIR;Initial Catalog=Gestion_bib;Integrated Security=True");

    }

    private void AjoutAuteur_Load(object sender, EventArgs e)
            {
                InitializeOpenFileDialog();
                daAuteur = new SqlDataAdapter("select * from Auteur", connexion.cnx);
                daAuteur.Fill(connexion.ds, "Auteur");
            }

     private void AjoutAuteur_Load(object sender, EventArgs e)
            {
                InitializeOpenFileDialog();
                daAuteur = new SqlDataAdapter("select * from Auteur", connexion.cnx);
                daAuteur.Fill(connexion.ds, "Auteur");
            }

      private void ajouterNewBook_Click(object sender, EventArgs e)
            {
                DataRow row = connexion.ds.Tables["Auteur"].NewRow();
                row[1] = String.IsNullOrEmpty(nomAuteurBox.Text) ?
                    DBNull.Value :
                    nomAuteurBox.Text as Object;
                row[2] = String.IsNullOrEmpty(prenomAuteurBox.Text) ?
                    DBNull.Value :
                    prenomAuteurBox.Text as Object;
                row[3] = String.IsNullOrEmpty(nomAuteurBox.Text) ?
                    DBNull.Value :
                    dateDeNaissanceAuteurBox.Text as Object;
                row[4] = String.IsNullOrEmpty(lieuDeNaissanceAuteurBox.Text) ?
                    DBNull.Value :
                    lieuDeNaissanceAuteurBox.Text as Object;
                row[5] = String.IsNullOrEmpty(nationaliteAuteurBox.Text) ?
                    DBNull.Value :
                    nationaliteAuteurBox.Text as Object;
                if (decesCheckBox.Checked)
                {
                    row[6] = true;
                    row[7] = String.IsNullOrEmpty(dateDecesAuteurBox.Text) ?
                    DBNull.Value :
                    dateDecesAuteurBox.Text as Object;
                    row[8] = String.IsNullOrEmpty(lieuDecesAuteurBox.Text) ?
                        DBNull.Value :
                        lieuDecesAuteurBox.Text as Object;
                }
                else
                {
                    row[6] = false;
                    row[7] = DBNull.Value;
                    row[8] = DBNull.Value;
                }
                row[9] = String.IsNullOrEmpty(periodeAuteurBox.Text) ?
                    DBNull.Value :
                    periodeAuteurBox.Text as Object;
                row[10] = String.IsNullOrEmpty(resumeAuteurBox.Text) ?
                   DBNull.Value :
                   resumeAuteurBox.Text as Object;
                row[11] = String.IsNullOrEmpty(lien1Box.Text) ?
                   DBNull.Value :
                   lien1Box.Text as Object;

                imgData = new ImageConverter().ConvertTo(auteurPhoto.Image, typeof(Byte[])) as Byte[];
                row[12] = imgData == null ?
                   DBNull.Value :
                   imgData as Object;
                connexion.ds.Tables["Auteur"].Rows.Add(row);

                SqlCommandBuilder cmb = new SqlCommandBuilder(daAuteur);
                daAuteur.Update(connexion.ds, "Auteur");
            }

but it gives me this error :

String or binary data would be truncated. The statement has been terminated

Where is the problem ?

Answer 1

You must also ensure that the size on field in database is conform your string parameter length

You can fix size of your row content by using SubString method

You have problem about transfering of image

imgData = new ImageConverter().ConvertTo(auteurPhoto.Image, typeof(Byte[])) as Byte[];
row[12] = imgData == null ? DBNull.Value : imgData; //Adjust here