No value given for one or more required parameters.

HI everyone, pls can u tell me whats the error in my code?

I am connecting to an oledb database

sql_edit_record = "UPDATE Anamnese SET ";

sql_edit_record += "ID=?,";

sql_edit_record += "Sexe = ?,";

sql_edit_record += "[Date de Naissance] = ?,";

sql_edit_record += "Classe = ?,";

sql_edit_record += "Ecole = ?,";

sql_edit_record += "Adresse = ?,";

sql_edit_record += "Telphone = ?,";

sql_edit_record += "[Cot de signalement] = ?,";

sql_edit_record += "[Motif de consultation] = ?,";

sql_edit_record += "[Histoire familale] = ?,";

sql_edit_record += "[Histoire mdicale] = ?,";

sql_edit_record += "[Histoire dveloppementale] = ?,";

sql_edit_record += "[Histoire scolaire] = ?,";

sql_edit_record += "[Situation socio-conomique] = ?,";

sql_edit_record += "[Histoire comportementale] = ?";

sql_edit_record += "WHERE Nom = ?";

//sql_edit_record = "UPDATE Anamnese SET Sexe = 'M' WHERE Nom = 'Dory'";

db_adapter.UpdateCommand.Connection = oledb_connection;

db_adapter.UpdateCommand.CommandText = sql_edit_record;

using (db_adapter.UpdateCommand)

{

textBox1.Text = sql_edit_record;

db_adapter.InsertCommand.Parameters.Add("@.ID", OleDbType.VarChar).Value = current_row.ToString();

db_adapter.InsertCommand.Parameters.Add("@.SEXE", OleDbType.VarChar).Value = sexe;

db_adapter.UpdateCommand.Parameters.Add("@.DATEDENAISSANCE", OleDbType.VarChar).Value = date_de_naissance;

db_adapter.UpdateCommand.Parameters.Add("@.CLASSE", OleDbType.VarChar).Value = classe;

db_adapter.UpdateCommand.Parameters.Add("@.ECOLE", OleDbType.VarChar).Value = ecole;

db_adapter.UpdateCommand.Parameters.Add("@.ADRESSE", OleDbType.VarChar).Value = adresse;

db_adapter.UpdateCommand.Parameters.Add("@.TELEPHONE", OleDbType.VarChar).Value = telephone;

db_adapter.UpdateCommand.Parameters.Add("@.SIGNALEMENT", OleDbType.VarChar).Value = signalement;

db_adapter.UpdateCommand.Parameters.Add("@.MOTIF", OleDbType.VarChar).Value = consultation;

db_adapter.UpdateCommand.Parameters.Add("@.HIS_FAM", OleDbType.VarChar).Value = his_familiale;

db_adapter.UpdateCommand.Parameters.Add("@.HIS_MED", OleDbType.VarChar).Value = his_medicale;

db_adapter.UpdateCommand.Parameters.Add("@.HIS_DEV", OleDbType.VarChar).Value = his_developpementale;

db_adapter.UpdateCommand.Parameters.Add("@.HIS_SCOL", OleDbType.VarChar).Value = his_scolaire;

db_adapter.UpdateCommand.Parameters.Add("@.HIS_SOCIO_ECO", OleDbType.VarChar).Value = his_socio_eco;

db_adapter.UpdateCommand.Parameters.Add("@.HIS_COMPORTEMENTALE", OleDbType.VarChar).Value = his_comportementale;

db_adapter.UpdateCommand.Parameters.Add("@.NOM", OleDbType.VarChar).Value =cbox_name.Text;

db_adapter.UpdateCommand.Connection.Open();

db_adapter.UpdateCommand.ExecuteNonQuery();

db_adapter.UpdateCommand.Connection.Close();

}

Without seeing any error messages it's hard to tell, however the first thing that stands out is the following:

sql_edit_record += "[Histoire comportementale] = ?";

sql_edit_record += "WHERE Nom = ?";

You should insert a space after the question mark on the first line, like so:

sql_edit_record += "[Histoire comportementale] = ? ";

sql_edit_record += "WHERE Nom = ?";

You may also find that you have to wrap the placeholders in single quotes where your table columns are of a textual datatype, for instance:

sql_edit_record += "[Histoire comportementale] = '?' ";

sql_edit_record += "WHERE Nom = '?'";

Is there a reason that you aren't using stored procedures to perform this task?

Chris

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Thanks for ur reply, the error is :

OleDBException was Unhandled

No value given for one or more required parameters.

Allthough I put the space after the ?.

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Sorry to state the obvious, but could the problem be that you haven't assigned values to all of the parameters?

Thanks
Chris

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Would an empty string("") raise such an error?