public void Execute()
{
Console.Clear();
Console.WriteLine("Edit Student GPA");
StudentRepository repo = new StudentRepository(Settings.FilePath);
ListStudentResponse response = repo.List();
if (!response.Success)
{
ConsoleIO.PrintListErrorMessage(response);
return;
}
List <Student> students = response.Students;
ConsoleIO.PrintPickListOfStudents(students);
Console.WriteLine();
int index = ConsoleIO.GetStudentIndexFromUser("Which student would you like to edit?", students.Count());
index--;
Console.WriteLine();
students[index].GPA = ConsoleIO.GetRequiredDecimalFromUser(string.Format($"Enter the new GPA for {students[index].FirstName} {students[index].LastName}: "));
repo.Edit(students[index], index);
Console.WriteLine("GPA updated!");
Console.WriteLine("Press any key to continue...");
Console.ReadKey();
}
public void Execute()
{
StudentRepository repo = new StudentRepository(Settings.FilePath);
ListStudentResponse response = repo.List();
if (!response.Success)
{
ConsoleIO.PrintListErrorMessage(response);
return;
}
List <Student> students = response.Students;
Console.Clear();
Console.WriteLine("Student List");
ConsoleIO.PrintStudentListHeader();
foreach (var student in students)
{
Console.WriteLine(ConsoleIO.StudentLineFormat, student.LastName + "," + student.FirstName, student.Major, student.GPA);
}
Console.WriteLine();
Console.WriteLine(ConsoleIO.SeparatorBar);
Console.WriteLine();
Console.WriteLine("Press any key to continue...");
Console.ReadKey();
}
public static void PrintListErrorMessage(ListStudentResponse response)
{
Console.WriteLine("An error occurred loading the student list: ");
Console.WriteLine(response.Message);
Console.WriteLine("Press any key to continue...");
Console.ReadKey();
return;
}
public void Execute()
{
Console.Clear();
Console.WriteLine("Remove Student");
StudentRepository repo = new StudentRepository(Settings.FilePath);
ListStudentResponse response = repo.List();
if (!response.Success)
{
ConsoleIO.PrintListErrorMessage(response);
return;
}
List <Student> students = response.Students;
ConsoleIO.PrintPickListOfStudents(students);
Console.WriteLine();
int index = ConsoleIO.GetStudentIndexFromUser("Which student would you like to delete?", students.Count());
index--;
string answer = ConsoleIO.GetYesNoAnswerFromUser($"Are you sure you want to remove {students[index].FirstName} {students[index].LastName}");
if (answer == "Y")
{
repo.Delete(index);
Console.WriteLine("Student removed!");
Console.WriteLine("Press any key to continue...");
Console.ReadKey();
}
else
{
Console.WriteLine("Remove cancelled!");
Console.WriteLine("Press any key to continue...");
Console.ReadKey();
}
}
public ListStudentResponse List()
{
ListStudentResponse response = new ListStudentResponse();
response.Success = true;
response.Students = new List <Student>();
try
{
using (StreamReader sr = new StreamReader(_filePath))
{
sr.ReadLine();
string line;
while ((line = sr.ReadLine()) != null)
{
Student newStudent = new Student();
string[] columns = line.Split(',');
newStudent.FirstName = columns[0];
newStudent.LastName = columns[1];
newStudent.Major = columns[2];
newStudent.GPA = decimal.Parse(columns[3]);
response.Students.Add(newStudent);
}
}
}
catch (Exception ex)
{
response.Success = false;
response.Message = ex.Message;
}
return(response);
}
