private void StudentSearch_TextChanged(object sender, TextChangedEventArgs e)
{
if ((e.OldTextValue ?? "").Length > (e.NewTextValue ?? "").Length)
{
InGrade = Attendance.StudentsOfGrade(ClassName);
InitializeTeachers();
InitializeStudents();
}
else
{
NamesTable = new TableSection();
List <ViewCell> visible = new List <ViewCell>();
string filter = StudentSearch.Text.Trim().ToLower();
int count = 0;
foreach (ViewCell c in Backup)
{
StackLayout s = c.View as StackLayout;
Label l = s.Children[2] as Label;
if (l.Text.ToLower().Contains(filter))
{
// make visible
s.Children[1] = GetPhoto(new KeyValuePair <string, string>((s.Children[0] as Label).Text, l.Text), true);
visible.Add(c);
count++;
}
}
foreach (ViewCell v in visible)
{
NamesTable.Add(v);
}
if (count == 0)
{
// there are no students that match this filter
NotFoundStack.IsVisible = true;
}
else
{
NotFoundStack.IsVisible = false;
}
NamesTableRoot.Clear();
NamesTableRoot.Add(NamesTable);
Scroll.ScrollToAsync(0, 0, false);
}
}
private void InitializeTeachers()
{
TeachersNamesTable.Clear();
TeacherBackup.Clear();
TeachersInGrade = Attendance.TeachersOfGrade(ClassName);
/*
* if (TeachersInGrade.Count == 0)
* {
* NotFoundStack.IsVisible = true;
* }*/
int count = 0;
string filter = StudentSearch.Text == null ? "" : StudentSearch.Text.Trim().ToLower();
foreach (var t in TeachersInGrade)
{
ViewCell cell = new ViewCell()
{
Height = 70,
};
StackLayout sl = new StackLayout()
{
Orientation = StackOrientation.Horizontal, BackgroundColor = Color.FromHex("#FFFFFF")
};
sl.Padding = new Thickness(0, 0, 10, 0);
sl.Children.Add(new Label()
{
Text = t.Key, IsVisible = false
});
sl.Children.Add(GetPhoto(t, false));
CheckBox cb = new CheckBox()
{
HorizontalOptions = LayoutOptions.EndAndExpand
};
Label l = new Label()
{
Text = t.Value,
VerticalOptions = LayoutOptions.Center,
VerticalTextAlignment = TextAlignment.Center,
TextColor = Color.Black,
FontSize = 16,
Padding = new Thickness(30, 0, 0, 0)
};
cell.Tapped += TableCell_Tapped;
sl.Children.Add(l);
sl.Children.Add(cb);
cell.View = sl;
TeacherBackup.Add(cell);
if (Attendance.TeacherAttendedToday(t.Key, DatePicker.Date))
{
cb.IsChecked = true;
}
else
{
cb.IsChecked = false;
}
if (t.Value.ToLower().Contains(filter))
{
TeachersNamesTable.Add(cell);
count++;
}
}
NamesTableRoot.Clear();
TeachersNamesTable.Add(new ViewCell()
{
View = new Label {
BackgroundColor = Color.LightGray
}
});
NamesTableRoot.Add(TeachersNamesTable);
}