protected void SaveContinent_Click(object sender, EventArgs e)
{
int currentContinentId = int.Parse(this.ContinentsListBox.SelectedValue);
EarthEntities context = new EarthEntities();
var currentContinent = context.Continents.FirstOrDefault(c => c.Id == currentContinentId);
currentContinent.Name = this.EditContinentName.Text;
context.SaveChanges();
this.EditContinentName.Text = "";
this.ContinentsListBox.DataBind();
}
protected void DeleteContinent_Click(object sender, EventArgs e)
{
int selectedContinent = int.Parse(this.ContinentsListBox.SelectedValue);
EarthEntities context = new EarthEntities();
var continent = context.Continents.FirstOrDefault(c => c.Id == selectedContinent);
context.Continents.Remove(continent);
context.SaveChanges();
this.ContinentsListBox.DataBind();
}
protected void AddContinent_Click(object sender, EventArgs e)
{
string newContinentName = this.NewContinent.Text.ToString();
EarthEntities context = new EarthEntities();
Continent newContinent = new Continent()
{
Name = newContinentName
};
context.Continents.Add(newContinent);
context.SaveChanges();
this.NewContinent.Text = "";
this.ContinentsListBox.DataBind();
}
protected void Button2_Click1(object sender, EventArgs e)
{
int selectedCountryId = (int)this.GridView1.SelectedDataKey.Value;
EarthEntities context = new EarthEntities();
var selectedCountry = context.Countries.FirstOrDefault(c => c.Id == selectedCountryId);
Town town = new Town()
{
Name = this.NewTownName.Text,
Population = int.Parse(this.NewTownPopulation.Text)
};
selectedCountry.Towns.Add(town);
context.SaveChanges();
this.NewTownName.Text = "";
this.NewTownPopulation.Text = "";
this.GridView1.DataBind();
}
protected void Button1_Click(object sender, EventArgs e)
{
var selectedContinentId = int.Parse(this.ContinentsListBox.SelectedValue);
EarthEntities context = new EarthEntities();
var selectedContinent = context.Continents.FirstOrDefault(c => c.Id == selectedContinentId);
Country country = new Country()
{
Name = this.NewCountryName.Text,
Language = this.NewCountryLanguage.Text,
Population = int.Parse(this.NewCountryPopulation.Text)
};
selectedContinent.Countries.Add(country);
context.SaveChanges();
this.NewCountryPopulation.Text = "";
this.NewCountryName.Text = "";
this.NewCountryLanguage.Text = "";
this.GridView1.DataBind();
}