private void tsmiSave_Click(object sender, EventArgs e) { if (database != null) { database.Save(); } else { MessageBox.Show("База данных не создана"); } }
private void tsmiNew_Click(object sender, EventArgs e) { SaveFileDialog sfd = new SaveFileDialog(); if (sfd.ShowDialog() == DialogResult.OK) { database = new TrueFalse(sfd.FileName); database.Add("Введите новый товар", 0, 0); database.Save(); nudNumber.Minimum = 1; nudNumber.Maximum = 1; nudNumber.Value = 1; } ; }