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);
}
}
}