SharkiТакая проблемка неработает Update.Вот пример кода ,помогите плизззззз,BD na Accsess
Зарание спасибо!!!


private void up_btn_Click(object sender, System.EventArgs e)
{
try
{
this.oleDbDataAdapter1.UpdateCommand.CommandText =
"UPDATE BookDb SET "+
"author ='"+ this.author_textBox.Text +"', EditionNumber ='"+this.ed_textBox.Text +
"', ISBN ="+this.isbn_textBox.Text+", Title ='"+ this.title_textBox.Text+"'" +
" WHERE ISBN ="+ this.isbn_textBox.Text;

//open the bridge between the application and the datasource
this.oleDbConnection1.Open();

this.oleDbDataAdapter1.UpdateCommand.Connection = oleDbConnection1;

//execute the qurey
this.oleDbDataAdapter1.UpdateCommand.ExecuteNonQuery();

//close the connection
this.oleDbConnection1.Close();

MessageBox.Show("Record updated Successfully"); //inform the user

//clear the form
this.title_textBox.Text = "";
this.isbn_textBox.Text = "";
this.author_textBox.Text = "";
this.ed_textBox.Text = "";

//show the qurey
this.qurey_label.Text = "";
this.qurey_label.Text = oleDbDataAdapter1.UpdateCommand.CommandText.ToString();
}
catch(System.Data.OleDb.OleDbException exp)
{
//close the connection
this.oleDbConnection1.Close();
MessageBox.Show(exp.ToString());
}

}

просто не выполняет сохранение или выбрасывет хоть какое-то исключение?