public static StudentContainer ReadList(string fileName)
{
try
{
if (fileName == null)
{
fileName = DefaultFilename;
}
var file = new StreamReader(fileName);
var students = new StudentContainer();
string line;
int i = 1;
while ((line = file.ReadLine()) != null)
{
var student = new Student(line, file.ReadLine(), file.ReadLine(),
DateTime.ParseExact(file.ReadLine(), "dd MM yyyy", CultureInfo.InvariantCulture),
DateTime.ParseExact(file.ReadLine(), "dd MM yyyy", CultureInfo.InvariantCulture),
file.ReadLine(), file.ReadLine(), file.ReadLine(), Convert.ToInt32(file.ReadLine()));
line = file.ReadLine();
if (line.Equals(""))
{
Console.WriteLine(i++ + " students read");
}
students.AddStudent(student);
}
;
file.Close();
return(students);
}
catch (Exception e)
{
Console.WriteLine("An error occured while reading file: " + e.Message);
}
return(new StudentContainer());
}
public static void Start()
{
var pigsty = new StudentContainer();
const string fileName = @"C:\Users\Дмитрий Соколенко\source\repos\DotNet\sokolenko05DN\file.txt";
pigsty = FilesIO.ReadList(fileName);
const string fileNameXml = @"C:\Users\Дмитрий Соколенко\source\repos\DotNet\sokolenko05DN\file.xml";
while (true)
{
PrintMainMenu();
int choice;
try
{
choice = Io.EnterInt("choice");
switch (choice)
{
case 1:
{
PrintStudents();
int printChoice = Io.EnterInt("printChoice");
switch (printChoice)
{
case 0:
{
Io.PrintStudents(pigsty);
break;
}
case 1:
{
Io.PrintStudents(StudentContainerProcessing.Search(Io.EnterString("group"), pigsty, printChoice - 1));
break;
}
case 2:
{
Io.PrintStudents(StudentContainerProcessing.Search(Io.EnterString("specialty"), pigsty, printChoice - 1));
break;
}
case 3:
{
Io.PrintStudents(StudentContainerProcessing.Search(Io.EnterString("faculty"), pigsty, printChoice - 1));
break;
}
}
break;
}
case 2:
{
pigsty.AddStudent(CreateStudent());
break;
}
case 3:
{
Io.PrintStudents(pigsty);
pigsty.DeleteStudentByIndex(Io.EnterInt("index") - 1);
break;
}
case 4:
{
var index = GetIndex(pigsty);
var student = pigsty.GetStudent(index);
Console.WriteLine(student.ToString());
int edit = Io.EnterInt("1 if you want to edit");
if (edit == 1)
{
student = CreateStudent();
pigsty.SetStudent(index, student);
}
break;
}
case 5:
{
RemoveStudents();
int deleteChoice = Io.EnterInt("deleteChoice");
pigsty = StudentContainerProcessing.RemoveStudents(pigsty, StudentContainerProcessing.Search(Io.EnterString("choice"), pigsty, deleteChoice));
break;
}
case 6:
{
AvgCalculateOperations();
int avgOperations = Io.EnterInt("avgChoice");;
StudentContainerProcessing.Del del = null;
switch (avgOperations)
{
case 0:
{
del = StudentContainerProcessing.CalculateAverageAge;
break;
}
case 1:
{
del = StudentContainerProcessing.CalculateAverageAcademicPerformance;
break;
}
}
RemoveStudents();
int searchChoice = Io.EnterInt("searchChoice");
Console.WriteLine(del?.Invoke(StudentContainerProcessing.Search(Io.EnterString("choice"), pigsty, searchChoice)));
break;
}
case 7:
{
FilesIO.SaveCollectionInXML(pigsty, fileNameXml);
break;
}
case 8:
{
pigsty = FilesIO.LoadCollectionFromXML(fileNameXml);
break;
}
case 0:
{
FilesIO.WriteList(pigsty, fileName);
return;
}
}
}
catch (Exception e)
{
Console.WriteLine(e.Message);
}
}
}