private async void SubmitAttendance_Clicked(object sender, EventArgs e)
{
List <string> selected = new List <string>();
List <string> teachersSelected = new List <string>();
foreach (ViewCell c in Backup)
{
StackLayout sl = c.View as StackLayout;
CheckBox cb = sl.Children[3] as CheckBox;
Label l = sl.Children[0] as Label;
if (cb.IsChecked && Backup.Contains(c))
{
selected.Add(l.Text);
}
}
foreach (ViewCell c in TeacherBackup)
{
StackLayout sl = c.View as StackLayout;
CheckBox cb = sl.Children[3] as CheckBox;
Label l = sl.Children[0] as Label;
if (cb.IsChecked && TeacherBackup.Contains(c))
{
teachersSelected.Add(l.Text);
}
}
var answer = await DisplayAlert("Submit", "Please verify there are " + selected.Count + " students and " + teachersSelected.Count + " Teachers.", "continue", "cancel");
if (answer)
{
Attendance.TakeAttendance(selected, DatePicker.Date);
Attendance.TakeTeacherAttendance(teachersSelected, DatePicker.Date);
await Navigation.PopAsync();
}
}