void RefreshList()
{
using (PeopleCarsContext ctx = new PeopleCarsContext())
{
lvPeople.ItemsSource = ctx.People.ToList();
}
}
private void miDelete_Click(object sender, RoutedEventArgs e)
{
Person currPerson = lvPeople.SelectedItem as Person;
if (currPerson == null)
{
return;
}
//
MessageBoxResult result = MessageBox.Show(this, "Are you sure you want to delete:\n" +
currPerson, "Confirm delete", MessageBoxButton.OKCancel, MessageBoxImage.Warning);
//
using (PeopleCarsContext ctx = new PeopleCarsContext())
{
if (result == MessageBoxResult.OK)
{
var people = (from p in ctx.People where p.Id == currPerson.Id select p).ToList();
if (people.Count == 0)
{
Console.WriteLine("Record not found");
}
else
{
Person p = people[0];
ctx.People.Remove(p);
ctx.SaveChanges();
RefreshList();
}
}
}
}
private void btnSavePerson_Click(object sender, RoutedEventArgs e)
{
using (PeopleCarsContext ctx = new PeopleCarsContext())
{
string name = tbName.Text;
int age = int.Parse(tbAge.Text);
string genderStr = cbGender.Text;
Person.GenderEnum gender;
if (!Enum.TryParse <Person.GenderEnum>(genderStr, out gender))
{
throw new InvalidCastException("Enum value invalid: " + genderStr);
}
if (currPerson == null)
{
Person p = new Person {
Name = name, Age = age, Gender = gender
};
ctx.People.Add(p);
ctx.SaveChanges();
}
else
{
var people = (from p in ctx.People where p.Id == currPerson.Id select p).ToList();
if (people.Count == 0)
{
Console.WriteLine("Record not found");
}
else
{
Person p = people[0];
p.Name = name;
p.Age = age;
p.Gender = gender;
ctx.SaveChanges();
}
}
this.DialogResult = true;
}
}
