public void Sort(object parameter)
{
string column = parameter as string;
List <KundeDto> KundenSorted;
switch (column)
{
case "Vorname":
if (_counter == 1)
{
KundenSorted = Kunden
.OrderByDescending(s => s.Vorname)
.ToList();
Kunden = KundenSorted;
_counter = 0;
}
else
{
KundenSorted = Kunden
.OrderBy(s => s.Vorname)
.ToList();
Kunden = KundenSorted;
_counter++;
}
break;
case "Nachname":
if (_counter == 1)
{
KundenSorted = Kunden
.OrderByDescending(s => s.Nachname)
.ToList();
Kunden = KundenSorted;
_counter = 0;
}
else
{
KundenSorted = Kunden
.OrderBy(s => s.Nachname)
.ToList();
Kunden = KundenSorted;
_counter++;
}
break;
case "Geburtsdatum":
if (_counter == 1)
{
KundenSorted = Kunden
.OrderByDescending(s => s.Geburtsdatum)
.ToList();
Kunden = KundenSorted;
_counter = 0;
}
else
{
KundenSorted = Kunden
.OrderBy(s => s.Geburtsdatum)
.ToList();
Kunden = KundenSorted;
_counter++;
}
break;
}
OnPropertyChanged(nameof(Kunden));
}
