private async Task DeleteStudentOverviews(StudentOverviewTableViewModel studentOverview)
{
var a = "";
if (await _pageService.DisplayAlert("Warning", $"Are you sure you want to delete{studentOverview.StudentID}?", "Yes", "No"))
{
StudentOverviews.Remove(studentOverview);
var userStudentOverview = await _studentOverviewStore.GetStudentOverviews(studentOverview.Id);
await _studentOverviewStore.DeleteStudentOverview(userStudentOverview);
}
}
public StudentOverviewDetailViewModel(StudentOverviewTableViewModel viewModel, IStudentOverview studentOverviewStore, IPageService pageService)
{
if (viewModel == null)
{
throw new ArgumentNullException(nameof(viewModel));
}
_pageService = pageService;
_studentOverviewStore = studentOverviewStore;
SaveCommand = new Command(async() => await Save());
StudentOverview = new StudentOverview
{
id = viewModel.Id,
studentID = viewModel.StudentID,
semester = viewModel.Semester,
attendance = viewModel.Attendance,
grade = viewModel.Grade,
moduleID = viewModel.ModuleID,
year = viewModel.Year
};
}
private async Task SelectStudentOverviews(StudentOverviewTableViewModel studentOverview)
{
if (studentOverview == null)
{
return;
}
SelectedStudentOverview = null;
var viewModel = new StudentOverviewDetailViewModel(studentOverview, _studentOverviewStore, _pageService);
viewModel.StudentOverviewUpdated += (source, updateStudentOverview) =>
{
studentOverview.Id = updateStudentOverview.id;
studentOverview.StudentID = updateStudentOverview.studentID;
studentOverview.Semester = updateStudentOverview.semester;
studentOverview.Attendance = updateStudentOverview.attendance;
studentOverview.Grade = updateStudentOverview.grade;
studentOverview.ModuleID = updateStudentOverview.moduleID;
studentOverview.Year = updateStudentOverview.year;
};
await _pageService.PushModalAsync(new StudentOverviewDetailPage(viewModel));
}
