private void findPartnersMenuItem_Click(object sender, EventArgs e) { searchTextBox.Clear(); clearSearchResults(); resultsTree = mainTree.FindTradePartners(selectedCountry); searchBoxLabel.Text = "Displaying all Trade Partners for " + selectedCountry.Name + ": " + resultsTree.Count(); countryList.DataSource = resultsTree.GetCountries(); countryList.DisplayMember = "name"; backButton.Enabled = true; }
private void exportMenuItem_Click(object sender, EventArgs e) { SaveFileDialog saveCountries = new SaveFileDialog(); saveCountries.Filter = "Save Countries to CSV file|*.csv"; if (saveCountries.ShowDialog() == System.Windows.Forms.DialogResult.OK) { string headers = "Country,GDP growth,Inflation,Trade Balance,HDI Ranking,Main Trade Partners"; string format = "{0},{1},{2},{3},{4},{5}"; StreamWriter file; try { file = new StreamWriter(saveCountries.FileName); file.WriteLine(headers); foreach (Country country in mainTree.GetCountries()) { string partners = "["; foreach (string partner in country.MainTradePartners) { partners = partners + partner.Replace(' ', '_') + ";"; } partners = partners.Remove(partners.Length - 1); partners = partners + "]"; file.WriteLine(String.Format(format, country.Name.Replace(' ', '_'), country.GdpGrowth, country.Inflation, country.TradeBalance, country.HdiRanking, partners)); } if (file != null) { file.Close(); } } catch { MessageBox.Show("Export was unsuccessful", "Error!", MessageBoxButtons.OK, MessageBoxIcon.Error); } } }