public static bool AddSubject(string given_subject_name, string given_teacher, SubjectColor given_color, int given_id = 0)
{
bool erfolgreich;
if (given_color == null)
{
given_color = SubjectColorManager.GetList().Find(x => x.color == Colors.Black);
}
if (given_subject_name != "" && given_color != null)
{
Subject new_subject = new Subject()
{
subject_name = given_subject_name, teacher = given_teacher, color = given_color
};
if (given_id == 0)
{
new_subject.id = SubjectManager.FreeId();
}
else
{
new_subject.id = given_id;
}
MyData.my_subjects_list.Add(new_subject);
erfolgreich = true;
}
else
{
not_completed_dialog(); erfolgreich = false;
}
return(erfolgreich);
}
public async void cdg_DeleteSubject()
{
ContentDialog deletesubject = new ContentDialog()
{
Title = "Fach löschen?",
Content = "Wenn du dieses Fach löschst, werden alle damit verbundenen Daten wie Noten, Stundenplaneinträge, etc. verloren gehen!",
PrimaryButtonText = "Abbrechen",
SecondaryButtonText = "Bestätigen"
};
ContentDialogResult result = await deletesubject.ShowAsync();
if (result == ContentDialogResult.Secondary)
{
Subject selected_subject = subject_to_show;
SubjectManager.DeleteSubject(SubjectManager.selected_subject_id);
Frame.Navigate(typeof(Subjects));
}
}
public void DeleteSubject()
{
SubjectManager.DeleteSubject(this.id);
}
public static decimal GetAverage(int subject_id)
{
decimal allclassworks = 0;
decimal allnormaltests = 0;
decimal average = 0;
decimal allclassworksaverage = 0;
decimal allnormaltestsaverage = 0;
List <Grade> classwork_list = new List <Grade> {
};
List <Grade> normaltest_list = new List <Grade> {
};
Subject actual_subject = SubjectManager.GetSubject(subject_id);
foreach (Grade grade in actual_subject.grades)
{
if (grade.type.typename == "classwork")
{
classwork_list.Add(grade);
}
if (grade.type.typename == "normaltest")
{
normaltest_list.Add(grade);
}
}
foreach (Grade grade in classwork_list)
{
allclassworks += grade.grade;
}
foreach (Grade grade in normaltest_list)
{
allnormaltests += grade.grade;
}
if (allclassworks != 0)
{
allclassworksaverage = allclassworks / classwork_list.Count();
}
if (allnormaltests != 0)
{
allnormaltestsaverage = allnormaltests / normaltest_list.Count();
}
if (allclassworksaverage != 0 && allnormaltestsaverage != 0)
{
average = (allclassworksaverage + allnormaltestsaverage) / 2;
}
else
{
if (allclassworksaverage == 0 && allnormaltestsaverage != 0)
{
average = allnormaltestsaverage;
}
if (allnormaltestsaverage == 0 && allclassworksaverage != 0)
{
average = allclassworksaverage;
}
}
average = Math.Round(average, 2);
return(average);
}
public SubjectDetail()
{
this.InitializeComponent();
subject_to_show = SubjectManager.GetSubject(SubjectManager.selected_subject_id);
}