private void btn_addToHistory_Click(object sender, EventArgs e)
{
//Validate Data
int credits;
try
{
credits = int.Parse(txtBx_credits.Text);
}
catch
{
return;
}
string letterGrade = txtBx_grade.Text;
Class newClass = new Class(txtBx_className.Text, credits, letterGrade);
List <Class> historicClasses;
try
{
historicClasses = DataIO.LoadHistoricClasses();
}
catch
{
//Could not seralzie. New empty list
historicClasses = new List <Class>();
}
historicClasses.Add(newClass);
DataIO.SaveHistoricClasses(historicClasses);
txtBx_credits.Text = "0";
txtBx_grade.Text = "";
txtBx_className.Text = "Class Name";
}
private void calculateGPA()
{
List <string> creditsList = new List <string> {
credits1.Text, credits2.Text, credits3.Text, credits4.Text, credits5.Text, credits6.Text
};
List <string> gradeList = new List <string> {
grade1.Text, grade2.Text, grade3.Text, grade4.Text, grade5.Text, grade6.Text
};
List <string> nameList = new List <string> {
name1.Text, name2.Text, name3.Text, name4.Text, name5.Text, name6.Text
};
List <Class> currentClasses = new List <Class>();
for (int i = 0; i < 6; i++)
{
int credits;
try
{
credits = int.Parse(creditsList[i]);
}
catch
{
break;
}
string letterGrade = gradeList[i];
Class newClass = new Class(nameList[i], credits, letterGrade);
currentClasses.Add(newClass);
}
DataIO.SaveCurrentClasses(currentClasses);
List <Class> allClasses = DataIO.LoadHistoricClasses(); //Start with historic classes
allClasses.AddRange(currentClasses); //Adds current classes
float semesterGPA = calculateGPA(currentClasses);
float cumGPA = calculateGPA(allClasses);
statusLbl_semesterGPA.Text = semesterGPA.ToString("F3");
statusLbl_cumGPA.Text = cumGPA.ToString("F3");
}