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);
}