private void CreateContent()
        {
            // Rooms DataTemplate

            var roomsDataTemplate = new DataTemplate(() => {
                var stackLayout = new StackLayout();

                var indexLabel = new Label {
                    IsVisible = false
                };
                var nameLabel = new Label {
                    FontAttributes = FontAttributes.Bold
                };

                indexLabel.SetBinding(Label.TextProperty, "Index");
                nameLabel.SetBinding(Label.TextProperty, "Name");

                stackLayout.Children.Add(indexLabel);
                stackLayout.Children.Add(nameLabel);

                var timeSlotsLayout               = new TimeSlotsWrapLayout();
                timeSlotsLayout.Padding           = 20;
                timeSlotsLayout.WidthRequest      = 300;
                timeSlotsLayout.HorizontalOptions = LayoutOptions.Start;
                timeSlotsLayout.SetBinding(TimeSlotsWrapLayout.TimeSlotsSourceProperty, "TimeSlots");

                stackLayout.Children.Add(timeSlotsLayout);

                var viewCell = new ViewCell
                {
                    View = stackLayout
                };

                return(viewCell);
            });

            // Rooms ListView

            //listView = new ListView()
            listView = new ListView //(ListViewCachingStrategy.RecycleElement)
            {
                ItemTemplate   = roomsDataTemplate,
                HasUnevenRows  = true,
                SeparatorColor = Color.Transparent,
            };
            listView.HasUnevenRows = true;

            listView.Margin = new Thickness(10);
            listView.SetBinding(ListView.ItemsSourceProperty, "Rooms", BindingMode.Default);

            Content = new StackLayout
            {
                Padding      = new Thickness(0, 0, 0, 0),
                WidthRequest = 300,
                Children     =
                {
                    listView,
                }
            };

            BindingContext = App.RoomsViewModel;
        }
        public FramesPageCS()
        {
            Title = "Frames";
            Icon  = "csharp.png";

            // Rooms DataTemplate

            var roomsDataTemplate = new DataTemplate(() => {
                var grid = new Grid();
                CompressedLayout.SetIsHeadless(grid, true);

                grid.RowDefinitions.Add(new RowDefinition {
                    Height = 20
                });

                grid.RowSpacing    = 0;
                grid.ColumnSpacing = 10;

                grid.ColumnDefinitions.Add(new ColumnDefinition {
                    Width = new GridLength(0.5, GridUnitType.Star)
                });
                grid.ColumnDefinitions.Add(new ColumnDefinition {
                    Width = new GridLength(0.2, GridUnitType.Star)
                });
                grid.ColumnDefinitions.Add(new ColumnDefinition {
                    Width = new GridLength(0.3, GridUnitType.Star)
                });

                var indexLabel = new Label {
                    IsVisible = false
                };
                var nameLabel = new Label {
                    FontAttributes = FontAttributes.Bold
                };

                indexLabel.SetBinding(Label.TextProperty, "Index");
                nameLabel.SetBinding(Label.TextProperty, "Name");

                grid.Children.Add(indexLabel, 0, 1, 0, 1);
                grid.Children.Add(nameLabel, 0, 1, 0, 1);

                var timeSlotsLayout               = new TimeSlotsWrapLayout();
                timeSlotsLayout.Padding           = 20;
                timeSlotsLayout.WidthRequest      = 300;
                timeSlotsLayout.HorizontalOptions = LayoutOptions.Start;
                timeSlotsLayout.SetBinding(TimeSlotsWrapLayout.TimeSlotsSourceProperty, "TimeSlots");
                grid.Children.Add(timeSlotsLayout, 0, 3, 1, 2);

                return(new ViewCell
                {
                    View = grid
                });
            });

            // Rooms ListView

            listView = new ListView()
            {
                ItemTemplate   = roomsDataTemplate,
                HasUnevenRows  = true,
                SeparatorColor = Color.Transparent,
            };
            listView.Margin = new Thickness(10);
            listView.SetBinding(ListView.ItemsSourceProperty, "Rooms", BindingMode.Default);

            // Add Button

            Button addButton = new Button
            {
                Text              = "Add TimeSlot",
                BindingContext    = App.RoomsViewModel,
                Command           = AddTimeSlot,
                WidthRequest      = 60.0,
                HeightRequest     = 40.0,
                BorderWidth       = 1,
                BorderColor       = Color.Green,
                VerticalOptions   = LayoutOptions.Start,
                HorizontalOptions = LayoutOptions.Fill,
                FontAttributes    = FontAttributes.Bold,
                FontSize          = 20.0,
                BackgroundColor   = Color.Green,
                TextColor         = Color.White,
            };

            Content = new StackLayout
            {
                Padding      = new Thickness(0, 0, 0, 0),
                WidthRequest = 300,
                Children     =
                {
                    listView,
                    addButton,
                }
            };

            BindingContext = App.RoomsViewModel;
        }