private void Top5(object sender, RoutedEventArgs e)
{
char[] studentRecords = new char[1024];
try
{
AssemblyStudentDB.top5Students(studentRecords);
}
catch
{
Console.WriteLine("Error in top5Students");
}
string records = new string(studentRecords);
string[] splitRecords = records.Split('/');
StudentList.Clear();
for (int i = 0; i < splitRecords.Length - 1; i += 5)
{
int id = splitRecords[i][0];
string name = splitRecords[i + 1];
int grade = splitRecords[i + 2][0];
char alphabetGrade = splitRecords[i + 3][0];
int section = splitRecords[i + 4][0];
Student student = new Student {
ID = id, Name = name, NumericGrade = grade, AlphabeticGrade = alphabetGrade, Section = section
};
StudentList.Add(student);
}
}
public void Search(object sender, RoutedEventArgs e)
{
if (string.IsNullOrEmpty(searchQuery.Text))
{
RefreshList();
return;
}
int searchID = int.Parse(searchQuery.Text);
char[] studentRecord = new char[100];
AssemblyStudentDB.printStudent((char)searchID, studentRecord);
string recordString = new string(studentRecord);
string[] fields = recordString.Split(' ');
if (fields.Length != 5)
{
return;
}
StudentList.Clear();
Student student = new Student {
ID = int.Parse(fields[0]), Name = fields[1], NumericGrade = int.Parse(fields[2]), AlphabeticGrade = fields[3][0], Section = int.Parse(fields[4])
};
StudentList.Add(student);
}
public void RefreshList()
{
StudentList.Clear();
char[] studentRecords = new char[1024];
AssemblyStudentDB.printStudentsBuffer(studentRecords);
string records = new string(studentRecords);
string[] splitRecords = records.Split('/');
for (int i = 0; i < splitRecords.Length - 1; i += 5)
{
int id = splitRecords[i][0];
string name = splitRecords[i + 1];
int grade = splitRecords[i + 2][0];
char alphabetGrade = splitRecords[i + 3][0];
int section = splitRecords[i + 4][0];
Student student = new Student {
ID = id, Name = name, NumericGrade = grade, AlphabeticGrade = alphabetGrade, Section = section
};
StudentList.Add(student);
}
}
public void Open(object sender, RoutedEventArgs e)
{
StudentDBKeyTextBox.Text = (StudentDBKeyTextBox != null) ? StudentDBKeyTextBox.Text.Trim() : "";
if (StudentDBKeyTextBox.Text != "")
{
int key = int.Parse(StudentDBKeyTextBox.Text);
if (key > 0 && key < 256)
{
try
{
AssemblyStudentDB.openDatabase("database.txt", (char)key);
}
catch
{
Console.WriteLine("Error in openDatabase");
}
RefreshList();
}
else
{
MessageBox.Show(" Enter Valid Number between 1 and 255");
}
}
else
{
MessageBox.Show("No empty values");
}
StudentDBKeyTextBox.Clear();
}
public void Update(object sender, RoutedEventArgs e)
{
StudentUpdateIDTextBox.Text = (StudentUpdateIDTextBox != null) ? StudentUpdateIDTextBox.Text.Trim() : "";
StudentUpdateGradeTextBox.Text = (StudentUpdateGradeTextBox != null) ? StudentUpdateGradeTextBox.Text.Trim() : "";
if (StudentUpdateIDTextBox.Text != "" && StudentUpdateGradeTextBox.Text != "")
{
int ID = int.Parse(StudentUpdateIDTextBox.Text);
int grade = int.Parse(StudentUpdateGradeTextBox.Text);
if (ID > 0 && ID < 256 && grade <= 100 && grade >= 0)
{
try
{
AssemblyStudentDB.updateGrade((char)ID, (char)grade);
}
catch
{
Console.WriteLine("Error in updateGrade");
}
RefreshList();
}
else
{
MessageBox.Show("Enter Valid Number between 1 and 255");
}
StudentUpdateGradeTextBox.Clear();
StudentUpdateIDTextBox.Clear();
}
else
{
MessageBox.Show("No empty values");
}
}
public void Delete(object sender, RoutedEventArgs e)
{
DeleteStudentIDTextBox.Text = (DeleteStudentIDTextBox != null) ? DeleteStudentIDTextBox.Text.Trim() : "";
if (DeleteStudentIDTextBox.Text != "")
{
int ID = int.Parse(DeleteStudentIDTextBox.Text);
if (ID > 0 && ID < 256)
{
try
{
AssemblyStudentDB.deleteStudent((char)ID);
}
catch
{
Console.WriteLine("Error in deleteStudent");
}
}
else
{
MessageBox.Show("Enter Valid Number between 1 and 255");
}
}
else
{
MessageBox.Show("No Empty Values");
}
DeleteStudentIDTextBox.Clear();
}
public void GenerateSection(object sender, RoutedEventArgs e)
{
GenerateSectionComboBox.Text = (GenerateSectionComboBox != null) ? GenerateSectionComboBox.Text.Trim() : "";
if (GenerateSectionComboBox.Text != "")
{
int section = int.Parse(GenerateSectionComboBox.Text);
try
{
AssemblyStudentDB.generateSectionReport((char)section, $"Section{section}_Report.txt");
}
catch
{
Console.WriteLine("Error in generateSectionReport");
}
}
else
{
MessageBox.Show("No empty Values");
}
GenerateSectionComboBox.SelectedIndex = -1;
}
public void Enroll(object sender, RoutedEventArgs e)
{
StudentIDTextBox.Text = (StudentIDTextBox != null) ? StudentIDTextBox.Text.Trim() : "";
StudentNameTextBox.Text = (StudentNameTextBox != null) ? StudentNameTextBox.Text.Trim() : "";
StudentGradeTextBox.Text = (StudentGradeTextBox != null) ? StudentGradeTextBox.Text.Trim() : "";
StudentSectionComboBox.Text = (StudentSectionComboBox != null) ? StudentSectionComboBox.Text.Trim() : "";
if (StudentIDTextBox.Text != "" && StudentNameTextBox.Text != "" && StudentGradeTextBox.Text != "" && StudentSectionComboBox.Text != "")
{
int ID = int.Parse(StudentIDTextBox.Text);
string name = StudentNameTextBox.Text;
int grade = int.Parse(StudentGradeTextBox.Text);
int section = int.Parse(StudentSectionComboBox.Text);
if (ID > 0 && ID < 256 && grade <= 100 && grade >= 0)
{
try
{
AssemblyStudentDB.enrollStudent((char)ID, name, (char)name.Length, (char)grade, (char)section);
}
catch
{
Console.WriteLine("Error in enrollStudent");
}
RefreshList();
}
else
{
MessageBox.Show("Enter Valid Number between 1 and 255 ");
}
}
else
{
MessageBox.Show("No empty Values");
}
StudentIDTextBox.Clear();
StudentNameTextBox.Clear();
StudentGradeTextBox.Clear();
StudentSectionComboBox.SelectedIndex = -1;
}
