/// <summary>
/// Method that edits a student's note from list in parent view model if input data is valid.
/// </summary>
private void EditStudent()
{
var validator = new StudentNoteValidator();
// Not valid data messages.
if (!validator.CheckFirstName(InputFirstName))
{
MessageBox.Show(AssemblyInfo.ADD_STUDENT_DENIED + AssemblyInfo.ADD_DENIED_INCORRECT_FIRSTNAME);
}
else if (!validator.CheckLastName(InputLastName))
{
MessageBox.Show(AssemblyInfo.ADD_STUDENT_DENIED + AssemblyInfo.ADD_DENIED_INCORRECT_LASTNAME);
}
else if (!validator.CheckAge(InputAge))
{
MessageBox.Show(AssemblyInfo.ADD_STUDENT_DENIED + AssemblyInfo.ADD_DENIED_INCORRECT_AGE);
}
// Input data is valid.
else
{
// Finding student's note in list by Id from parent window view model.
Student editStudent = App.WindowService.MainWindowViewModel.StudentsData.First(x => x.Id == InputId);
int editStudentId = App.WindowService.MainWindowViewModel.StudentsData.IndexOf(editStudent);
App.WindowService.MainWindowViewModel.StudentsData[editStudentId] = new Student(InputId, InputFirstName,
InputLastName, InputAge, InputGender);
MessageBox.Show(AssemblyInfo.EDIT_STUDENT_SUCCESS);
}
}
/// <summary>
/// Method that adds a new student's note to list in parent view model if input data is valid.
/// </summary>
private void AddStudent()
{
var validator = new StudentNoteValidator();
// Not valid data messages.
if (!validator.CheckFirstName(InputFirstName))
{
MessageBox.Show(AssemblyInfo.ADD_STUDENT_DENIED + AssemblyInfo.ADD_DENIED_INCORRECT_FIRSTNAME);
}
else if (!validator.CheckLastName(InputLastName))
{
MessageBox.Show(AssemblyInfo.ADD_STUDENT_DENIED + AssemblyInfo.ADD_DENIED_INCORRECT_LASTNAME);
}
else if (!validator.CheckAge(InputAge))
{
MessageBox.Show(AssemblyInfo.ADD_STUDENT_DENIED + AssemblyInfo.ADD_DENIED_INCORRECT_AGE);
}
// Input data is valid.
else
{
Student newStudentNote = new Student(
App.WindowService.MainWindowViewModel.StudentsData.Count,
InputFirstName,
InputLastName,
InputAge,
InputGender);
// Check the new note for existing in list.
// If the list doesn't contain the new note, add it to list.
if (App.WindowService.MainWindowViewModel.StudentsData
.FirstOrDefault(x => { return(x.AreEqual(newStudentNote)); }) == null)
{
App.WindowService.MainWindowViewModel.StudentsData.Add(newStudentNote);
MessageBox.Show(AssemblyInfo.ADD_STUDENT_SUCCESS);
}
else
{
MessageBox.Show(AssemblyInfo.ADD_STUDENT_DENIED + AssemblyInfo.ADD_DENIED_NOTE_EXIST);
}
}
}