//Uppdaterar land
private void Button_Click_2(object sender, RoutedEventArgs e)
{
var currname = lvCountriesEdit.SelectedValue.ToString();
var name = tbCountryName.Text;
var curr = tbCurrency.Text;
var sub = Int32.Parse(tbMaxCash.Text);
var logic = new LogicHandler();
logic.uppdateCountry(currname, name, curr, sub);
lvCountriesEdit.Items.Clear();
PupulateListViewCountries();
}