ArcGISRuntimeXamarin.Samples.ChangeSublayerVisibility.ChangeSublayerVisibility.OnSublayersClicked C# (CSharp) Метод

        private async void OnSublayersClicked(object sender, EventArgs e)
        {
            // Make sure that layer and it's sublayers are loaded
            // If layer is already loaded, this returns directly
            await _imageLayer.LoadAsync();

            // Create layout for sublayers page
            // Create root layout
            var layout = new StackLayout();

            // Create list for layers
            var sublayersTableView = new TableView();

            // Create section for basemaps sublayers
            var sublayersSection = new TableSection(_imageLayer.Name);

            // Create cells for each of the sublayers
            foreach (ArcGISSublayer sublayer in _imageLayer.Sublayers)
            {
                // Using switch cells that provides on/off functionality
                SwitchCell cell = new SwitchCell()
                {
                    Text = sublayer.Name,
                    On = sublayer.IsVisible
                };

                // Hook into the On/Off changed event
                cell.OnChanged += OnCellOnOffChanged;
                
                // Add cell into the table view
                sublayersSection.Add(cell);
            }

            // Add section to the table view
            sublayersTableView.Root.Add(sublayersSection);

            // Add table to the root layout
            layout.Children.Add(sublayersTableView);

            // Create internal page for the navigation page
            var sublayersPage = new ContentPage()
            {
                Content = layout,
                Title = "Sublayers"
            };
                        
            // Navigate to the sublayers page
            await Navigation.PushAsync(sublayersPage);
        }