private void LoadPeopleList()
{
_peopleCollectionVM = new ObservableCollection <Person>();
XmlSerializer serializer = new XmlSerializer(typeof(ObservableCollection <Person>));
try
{
using (FileStream stream = new FileStream("People.xml", FileMode.Open))
{
IEnumerable <Person> personData = (IEnumerable <Person>)serializer.Deserialize(stream);
foreach (Person p in personData)
{
PeopleCollectionVM.Add(p);
}
}
}
catch (FileNotFoundException)
{
//file not found -> first launch of the application detected (or possible reset via removal of the 'People.xml')
for (int i = 0; i < 50; i++)
{
_peopleCollectionVM.Add(new Person("a" + i, "b" + i, "a" + i + "@b.c",
new DateTime(1960 + i, 03, 01)));
}
}
catch (Exception ex)
{
//suppress other ex-s.
//MessageBox.Show(ex.ToString());
}
}
private async Task DeleteUser()
{
//call ui thread to modify the collection
await App.Current.Dispatcher.BeginInvoke((Action) delegate
{
PeopleCollectionVM.Remove(SelectedPerson);
});
}
private void MergePeople()
{
if (!(PeopleCollectionVMFilteredOut is null))
{
PeopleCollectionVM = new ObservableCollection <Person>(PeopleCollectionVM.Concat(PeopleCollectionVMFilteredOut).OrderBy(x => x.Name));
PeopleCollectionVMFilteredOut = null;
}
}
private async Task FilterUsers()
{
MergePeople();
switch (CurrentFilterType)
{
case "Name":
PeopleCollectionVMFilteredOut = new ObservableCollection <Person>(PeopleCollectionVM.Where(x => !x.Name.Contains(CurrentFilterText)));
PeopleCollectionVM = new ObservableCollection <Person>(PeopleCollectionVM.Where(x => x.Name.Contains(CurrentFilterText)));
return;
case "Surname":
PeopleCollectionVMFilteredOut = new ObservableCollection <Person>(PeopleCollectionVM.Where(x => !x.Surname.Contains(CurrentFilterText)));
PeopleCollectionVM = new ObservableCollection <Person>(PeopleCollectionVM.Where(x => x.Surname.Contains(CurrentFilterText)));
return;
case "Email":
PeopleCollectionVMFilteredOut = new ObservableCollection <Person>(PeopleCollectionVM.Where(x => !x.Email.Contains(CurrentFilterText)));
PeopleCollectionVM = new ObservableCollection <Person>(PeopleCollectionVM.Where(x => x.Email.Contains(CurrentFilterText)));
return;
case "Birth Date":
PeopleCollectionVMFilteredOut = new ObservableCollection <Person>(PeopleCollectionVM.Where(x => !x.BirthDate.ToString().Contains(CurrentFilterText)));
PeopleCollectionVM = new ObservableCollection <Person>(PeopleCollectionVM.Where(x => x.BirthDate.ToString().Contains(CurrentFilterText)));
return;
case "Is Adult":
PeopleCollectionVMFilteredOut = new ObservableCollection <Person>(PeopleCollectionVM.Where(x => !x.IsAdult.ToString().Contains(CurrentFilterText)));
PeopleCollectionVM = new ObservableCollection <Person>(PeopleCollectionVM.Where(x => x.IsAdult.ToString().Contains(CurrentFilterText)));
return;
case "Sun Sign":
PeopleCollectionVMFilteredOut = new ObservableCollection <Person>(PeopleCollectionVM.Where(x => !x.SunSign.Contains(CurrentFilterText)));
PeopleCollectionVM = new ObservableCollection <Person>(PeopleCollectionVM.Where(x => x.SunSign.Contains(CurrentFilterText)));
return;
case "Chinese Sign":
PeopleCollectionVMFilteredOut = new ObservableCollection <Person>(PeopleCollectionVM.Where(x => !x.ChineseSign.Contains(CurrentFilterText)));
PeopleCollectionVM = new ObservableCollection <Person>(PeopleCollectionVM.Where(x => x.ChineseSign.Contains(CurrentFilterText)));
return;
case "Has Birthday Today":
PeopleCollectionVMFilteredOut = new ObservableCollection <Person>(PeopleCollectionVM.Where(x => !x.IsBirthday.ToString().Contains(CurrentFilterText)));
PeopleCollectionVM = new ObservableCollection <Person>(PeopleCollectionVM.Where(x => x.IsBirthday.ToString().Contains(CurrentFilterText)));
return;
default:
return;
}
}
private void CheckEmail()
{
try
{
System.Net.Mail.MailAddress mailAddress = new System.Net.Mail.MailAddress(CurrentEmail);
if (PeopleCollectionVM.Any(p => p.Email.Equals(CurrentEmail)))
{
throw new EmailException();
}
}
catch
{
//throw new EmailException("Please, enter existing email address.");
throw new EmailException();
}
}
private async Task CheckAndProceed()
{
//check
try
{
CheckAge();
CheckEmail();
}
catch (BirthDateException)
{
MessageBox.Show("This program works only for people born on 19.02.1901 (UKR locale) or later, up to today.");
return;
}
catch (EmailException)
{
MessageBox.Show("Please, enter existing email address, which was not already added.");
return;
}
//proceed
if (DateTime.Now.Month.Equals(CurrentBirthDate.Month) &&
DateTime.Now.Day.Equals(CurrentBirthDate.Day))
{
ResultBdNote = "Happy bd!";
}
else
{
ResultBdNote = "";
}
Person tmp = new Person(CurrentName, CurrentSurname, CurrentEmail, CurrentBirthDate);
ResultName = tmp.Name;
ResultSurname = tmp.Surname;
ResultEmail = tmp.Email;
ResultBirthDate = tmp.BirthDate.Value.ToLongDateString();
ResultIsAdult = tmp.IsAdult.ToString();
ResultSunSign = tmp.SunSign;
ResultChineseSign = tmp.ChineseSign;
ResultIsBirthday = tmp.IsBirthday.ToString();
//call ui thread to modify the collection
await App.Current.Dispatcher.BeginInvoke((Action) delegate
{
PeopleCollectionVM.Add(tmp);
});
}
