private void EditForm_Load(object sender, EventArgs e)
{
MainForm mainForm = new MainForm();
city = this.mainForm.city;
population = this.mainForm.population;
oldCityTextBox.Text = city;
string pop = this.mainForm.population.ToString();
decimal convertedPopulation = Decimal.Parse(pop, System.Globalization.NumberStyles.Float);
oldPopulationTextBox.Text = convertedPopulation.ToString();
}
public EditForm(MainForm form)
{
this.mainForm = form;
InitializeComponent();
}