Пример #1
0
 private void Insert_Click(object sender, EventArgs e)
 {
     BookDB db = new BookDB();
     try
     {
         db.iBookCode = db.primarykey();
         db.strTitle = tbTitle.Text;
         db.strAuthor = tbAuthor.Text;
         db.insert();
         tbAuthor.Text = "";
         tbTitle.Text = "";
         MessageBox.Show("register a book.");
     }
     catch (FormatException)
     {
         MessageBox.Show("error");
         tbAuthor.Text = "";
         tbTitle.Text = "";
     }
     catch (OverflowException)
     {
         MessageBox.Show("error");
         tbAuthor.Text = "";
         tbTitle.Text = "";
     }
 }
Пример #2
0
        private void Insert_Click(object sender, EventArgs e)
        {
            BookDB db = new BookDB();

            try
            {
                db.iBookCode = db.primarykey();
                db.strTitle  = tbTitle.Text;
                db.strAuthor = tbAuthor.Text;
                db.insert();
                tbAuthor.Text = "";
                tbTitle.Text  = "";
                MessageBox.Show("register a book.");
            }
            catch (FormatException)
            {
                MessageBox.Show("error");
                tbAuthor.Text = "";
                tbTitle.Text  = "";
            }
            catch (OverflowException)
            {
                MessageBox.Show("error");
                tbAuthor.Text = "";
                tbTitle.Text  = "";
            }
        }
Пример #3
0
 private void btSearch_Click(object sender, EventArgs e)
 {
     BookDB book = new BookDB();
     book.DBOpen();
     int tmp;
     tmp = comboBox.SelectedIndex;
      if (tmp == 0)
      {
      DataSet ds = book.GetData(eItem.TITLE, tb.Text);
      dataGridView1.DataSource = ds.Tables[0];
      }
      else if (tmp == 1)
      {
      DataSet ds = book.GetData(eItem.AUTHOR, tb.Text);
     dataGridView1.DataSource = ds.Tables[0];
      }
 }
Пример #4
0
        private void btSearch_Click(object sender, EventArgs e)
        {
            BookDB book = new BookDB();

            book.DBOpen();
            int tmp;

            tmp = comboBox.SelectedIndex;
            if (tmp == 0)
            {
                DataSet ds = book.GetData(eItem.TITLE, tb.Text);
                dataGridView1.DataSource = ds.Tables[0];
            }
            else if (tmp == 1)
            {
                DataSet ds = book.GetData(eItem.AUTHOR, tb.Text);
                dataGridView1.DataSource = ds.Tables[0];
            }
        }