// Button to give the selected student its CourseMark
private void Btn_CourseMark_Click(object sender, RoutedEventArgs e)
{
// Created and initialized -empty- string to store errors
string errorMsg = "";
// Once we have selected an existing student, we mark the course of the student and update its label
try
{
selectedStudent.CourseMark = int.Parse(txtCourseMark.Text);
studentMark = selectedStudent.getMark();
lbl_TotalMark.Content = studentMark + "%";
}
catch (Exception except)
{
errorMsg += except.Message + "\n";
}
// Give feedback to user when validation hasn't been achieved
if (!String.IsNullOrEmpty(errorMsg))
{
MessageBox.Show(errorMsg);
return;
}
// Clear the textbox for the courseMark
txtCourseMark.Clear();
// Get total after adding course mark
selectedStudent.totall = selectedStudent.getMark();
}
//This method searches the student by matric number and displays its info
private void btnFind_Click(object sender, RoutedEventArgs e)
{
//if the Find student textbox is not empty...
if (txtBoxFind.Text != "")
{
//check if the student exists
if (store.find(Convert.ToInt16(txtBoxFind.Text)) != null)
{
//create a new student with the matric no. that was input
Student findStudent = store.find(Convert.ToInt16(txtBoxFind.Text));
//display values
lblName3.Content = findStudent.FirstName;
lblSurname3.Content = findStudent.Surname;
lblCW3.Content = findStudent.CWMark;
lblExam3.Content = findStudent.ExamMark;
lblTotal3.Content = findStudent.getMark() + "%";
//clear the "Find" textbox
txtBoxFind.Clear();
}
else //display error message if matric is not found
{
MessageBox.Show("The matric number does not exist.");
}
}
else //display error message if the textbox is empty
{
MessageBox.Show("Please enter a matric number to find.");
}
}
// Button to Find a student from a given matriculation number and show part of its information
private void Btn_Find_Click(object sender, RoutedEventArgs e)
{
// Looking for student and adding its name to a Name label
try
{
// Take input number and parse it. The result into the find method, which return its student if matriculation number is found
selectedStudent = store.find(int.Parse(txtStudentNo.Text));
lbl_Name.Content = selectedStudent.FirstName + " " + selectedStudent.Surname;
}
catch
{
MessageBox.Show("Ops, something went wrong, try different student matriculation number");
}
// Get mark of student using the 'getMark' method. Show the result in a label
try
{
studentMark = selectedStudent.getMark();
lbl_TotalMark.Content = studentMark + "%";
}
catch
{
MessageBox.Show("Ops, seems like the student didn't the coursework or the exam");
}
// Clear the text box to look for another student
txtStudentNo.Clear();
}
//This method displays the details of the student selected from the listbox.
private void listBoxAll_MouseDoubleClick(object sender, MouseButtonEventArgs e)
{
//if the listbox is not empty...
if (listBoxAll.SelectedItem != null)
{
//copy the matric number selected into the textbox
txtBoxFind.Text = Convert.ToString(listBoxAll.SelectedItem);
//create a new student with the matric no. that was input
Student findStudent2 = store.find(Convert.ToInt16(listBoxAll.SelectedItem));
//Display student's info
lblName3.Content = findStudent2.FirstName;
lblSurname3.Content = findStudent2.Surname;
lblCW3.Content = findStudent2.CWMark;
lblExam3.Content = findStudent2.ExamMark;
lblTotal3.Content = findStudent2.getMark() + "%";
}
else //display error message if user tries to select an item and the listbox is empty
{
MessageBox.Show("Don't be cheeky.");
}
}
