public static void addTradePartner(AVLTree <Country> Countries, ComboBox cbAddTradePartner, ListBox listBoxCountries)
{
Country country = Countries.GetItem(new Country((String)listBoxCountries.SelectedItem));
String countryAdding = (string)cbAddTradePartner.SelectedItem;
Countries.updateItem(country.CountryName, addTradePartner(country, countryAdding));
Countries.updateItem(countryAdding, addTradePartner(Countries.GetItem(new Country(countryAdding)), country.CountryName));
}
private void listBoxTradingPartners_KeyUp(object sender, KeyEventArgs e)
{
if (e.KeyCode == Keys.Delete)
{
// Storing needed country values
Country mainCountry = Countries.GetItem(new Country((String)listBoxCountries.SelectedItem));
String tradingCountryName = (String)listBoxTradingPartners.SelectedItem;
Country tradingCountry = Countries.GetItem(new Country(tradingCountryName));
// Removing trading for both countries
mainCountry.MainTradePartners = Program.removedCountryPartner(mainCountry.MainTradePartners, tradingCountryName);
tradingCountry.MainTradePartners = Program.removedCountryPartner(tradingCountry.MainTradePartners, mainCountry.CountryName);
// Update Trading Partner Listview
Program.updateTradePartnersList(mainCountry, listBoxTradingPartners);
e.Handled = true;
}
}
public static void showCountries(string search, ListBox listBoxCountries, AVLTree <Country> Countries, CheckBox checkBox) // checkBoxTradingPartner
{
string[] CountriesText = getCountries(Countries);
listBoxCountries.Items.Clear();
if (checkBox.Checked) //Part 6 & 7
{
foreach (string s in CountriesText)
{
if (Contains(Countries.GetItem(new Country(s)).MainTradePartners, search))
{
listBoxCountries.Items.Add(s);
}
}
}
else
{
foreach (string s in CountriesText)
{
if (s.ToLower().Contains(search.ToLower()))
{
listBoxCountries.Items.Add(s);
}
}
}
}
// Part 2
public static void updateCountry(ref AVLTree <Country> Countries, string updating, ListBox listBoxCountries, TextBox txtName, TextBox txtGpdGrowth, TextBox txtInflation, TextBox txtTradeBalance, TextBox txtHdiRanking)
{
Country county = Countries.GetItem(new Country((String)listBoxCountries.SelectedItem));
string oldName = county.CountryName;
switch (updating)
{
case "Name": county.CountryName = txtName.Text; break;
case "GPD": county.GpdGrowth = float.Parse(txtGpdGrowth.Text); break;
case "Inflation": county.Inflation = float.Parse(txtInflation.Text); break;
case "TradeBalance": county.TradeBalance = float.Parse(txtTradeBalance.Text); break;
case "HdiRanking": county.HdiRanking = int.Parse(txtHdiRanking.Text); break;
}
Countries.updateItem(oldName, county);
// Updates countries that previously traded with the changed countries old name, to its new name
if ("Name".Equals(updating))
{
string[] countryText = Program.getCountries(Countries);
foreach (string s in countryText)
{
Boolean changed = false;
Country temp = Countries.GetItem(new Country(s));
for (int i = 0; i < temp.MainTradePartners.Length; i++)
{
if (oldName.Equals(temp.MainTradePartners[i]))
{
temp.MainTradePartners[i] = txtName.Text;
changed = true;
}
}
if (changed)
{
Countries.updateItem(temp.CountryName, temp);
}
}
}
}
public static void updateCountryTextBoxes(ref AVLTree <Country> Countries, ListBox listBoxCountries, TextBox txtName, TextBox txtGpdGrowth, TextBox txtInflation, TextBox txtTradeBalance, TextBox txtHdiRanking, ListBox listBoxTradingPartners, ComboBox addTradePartner)
{
Country c = Countries.GetItem(new Country((String)listBoxCountries.SelectedItem));
txtName.Text = c.CountryName;
txtGpdGrowth.Text = c.GpdGrowth.ToString();
txtInflation.Text = c.Inflation.ToString();
txtTradeBalance.Text = c.TradeBalance.ToString();
txtHdiRanking.Text = c.HdiRanking.ToString();
listBoxTradingPartners.Items.Clear();
foreach (string s in c.MainTradePartners)
{
listBoxTradingPartners.Items.Add(s);
}
updateAddTradePartners(Countries, addTradePartner, listBoxCountries);
}
// Part 4
public static void deleteCountry(ref AVLTree <Country> Countries, ListBox listBoxCountries, Label lblInfo, TextBox txtSearch, CheckBox checkBoxTradingPartner)
{
if (listBoxCountries.SelectedIndex != -1)
{
String country = (String)listBoxCountries.SelectedItem;
// simply removing the country from the AVL Tree
Countries.RemoveItem(country);
// removing all instances from other countries that traded with the removed country
string[] countryNames = getCountries(Countries);
foreach (string c in countryNames)
{
Countries.updateItem(c, removedCountryPartner(Countries.GetItem(new Country(c)), country));
}
// updates fields
setAvlData(lblInfo, Countries);
txtSearch.Text = "";
showCountries(txtSearch.Text, listBoxCountries, Countries, checkBoxTradingPartner);
}
}
public static void updateAddTradePartners(AVLTree <Country> Countries, ComboBox addTradePartner, ListBox listBoxCountries)
{
if ((String)listBoxCountries.SelectedItem != "")
{
Country county = Countries.GetItem(new Country((String)listBoxCountries.SelectedItem));
String[] countryTexts = getCountries(Countries);
addTradePartner.Items.Clear();
addTradePartner.SelectedItem = "";
addTradePartner.SelectedIndex = -1;
addTradePartner.SelectedText = "";
addTradePartner.SelectedValue = "";
foreach (string c in countryTexts)
{
if (!county.MainTradePartners.Contains(c) && !c.Equals(county.CountryName))
{
addTradePartner.Items.Add(c);
}
}
}
}
// Part 8
public static void setBiggestTradingPartner(ref AVLTree <Country> Countries, TextBox txtNameTrade, TextBox txtGpdTrade, TextBox txtGpdTradeSum, TextBox txtInflationTrade, TextBox txtTradeBalanceTrade, TextBox txtHdiTrade, ListBox listBoxTrade)
{
string[] CountriesText = getCountries(Countries);
string countryWithBiggestTradePotential = "";
float countryWithBiggestTradePotentialGPD = 0;
foreach (string s in CountriesText)
{
Country x = Countries.GetItem(new Country(s));
float total = 0;
foreach (string countr in x.MainTradePartners)
{
if (Countries.GetItem(new Country(countr)) != null)
{
total += Countries.GetItem(new Country(countr)).GpdGrowth;
}
}
if (total > countryWithBiggestTradePotentialGPD)
{
countryWithBiggestTradePotentialGPD = total;
countryWithBiggestTradePotential = x.CountryName;
}
}
Country c = Countries.GetItem(new Country(countryWithBiggestTradePotential));
txtNameTrade.Text = c.CountryName;
txtGpdTrade.Text = c.GpdGrowth.ToString();
float gpdTemp = 0;
foreach (string countr in c.MainTradePartners)
{
if (Countries.GetItem(new Country(countr)) != null)
{
gpdTemp += Countries.GetItem(new Country(countr)).GpdGrowth;
}
}
txtGpdTradeSum.Text = gpdTemp.ToString();
txtInflationTrade.Text = c.Inflation.ToString();
txtTradeBalanceTrade.Text = c.TradeBalance.ToString();
txtHdiTrade.Text = c.HdiRanking.ToString();
listBoxTrade.Items.Clear();
foreach (string s in c.MainTradePartners)
{
listBoxTrade.Items.Add(s);
}
}
