protected void button_Click(object sender, EventArgs e)
{
var Countriesinlibrary = FileOperation.ReadCountryfromdatabase();
int counter = 0;
var Countrytoadd = new Country(this.Country.Text,this.Capital.Text,int.Parse(this.Population.Text));
foreach (var item in Countriesinlibrary)
{
if (Country.Text.ToLower()==item.Name.ToLower())
{
counter++;
}
}
if (FileOperation.Addcountrytodatabase(Countrytoadd)&&counter==0)
{
this.messageLabel.Text = "Successfully added country";
this.Country.Text = string.Empty;
this.Capital.Text = string.Empty;
this.Population.Text = string.Empty;
counter = 0;
}
else
{
this.messageLabel.ForeColor = System.Drawing.Color.Red;
this.messageLabel.Text = "An error occured while adding the country";
}
}
public static bool Addcountrytodatabase(Country CountrytoAdd)
{
try
{
using (var writer = new StreamWriter(FileOperation.FilePath, true))
{
writer.WriteLine(CountrytoAdd);
}
return true;
}
catch (Exception)
{
return false;
}
}
public static List<Country> ReadCountryfromdatabase()
{
var listOfCountries = new List<Country>();
using (var reader = new StreamReader(FileOperation.FilePath))
{
var CurrentCountry = reader.ReadLine();
while (CurrentCountry != null)
{
var currentCountry = CurrentCountry.Split('|');
var Country = new Country(
currentCountry[0].Trim(),
currentCountry[1].Trim(),
int.Parse(currentCountry[2].Trim()));
listOfCountries.Add(Country);
CurrentCountry = reader.ReadLine();
}
}
return listOfCountries;
}
