[Testing] Feature Matrix UITest Cases for CollectionView Header/Footer Feature

src/Controls/tests/TestCases.HostApp/CoreViews/CorePageView.cs

@@ -77,6 +77,7 @@ public override string ToString()
 			new GalleryPageFactory(() => new TimePickerCoreGalleryPage(), "Time Picker Gallery"),
 			new GalleryPageFactory(() => new WebViewCoreGalleryPage(), "WebView Gallery"),
 			new GalleryPageFactory(() => new SliderControlPage(), "Slider Feature Matrix"),
+			new GalleryPageFactory(() => new HeaderFooterMainPage(), "CollectionView Feature Matrix"),
 		};
 
 		public CorePageView(Page rootPage)

src/Controls/tests/TestCases.HostApp/FeatureMatrix/CollectionView/CollectionViewControlPage.xaml

@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<ContentPage xmlns="http://schemas.microsoft.com/dotnet/2021/maui"
+             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
+             xmlns:local="clr-namespace:Maui.Controls.Sample"
+             x:Class="Maui.Controls.Sample.CollectionViewControlPage"
+             Title="CollectionViewFeature">
+    <ContentPage.ToolbarItems>
+        <ToolbarItem Text="Options"
+                     Clicked="NavigateToOptionsPage_Clicked"
+                     AutomationId="Options"/>
+    </ContentPage.ToolbarItems>
+        <local:CollectionView2
+            x:Name="collectionView"
+            ItemsSource="{Binding ItemsSource}"
+            EmptyView="{Binding EmptyView}"
+            Header="{Binding Header}"
+            Footer="{Binding Footer}"
+            EmptyViewTemplate="{Binding EmptyViewTemplate}"
+            HeaderTemplate="{Binding HeaderTemplate}"
+            FooterTemplate="{Binding FooterTemplate}"
+            GroupHeaderTemplate="{Binding GroupHeaderTemplate}"
+            GroupFooterTemplate="{Binding GroupFooterTemplate}"
+            ItemTemplate="{Binding ItemTemplate}"
+            ItemsLayout="{Binding ItemsLayout}"
+            IsGrouped="{Binding IsGrouped}"
+            AutomationId="CollectionViewControl">
+        </local:CollectionView2>
+</ContentPage>

src/Controls/tests/TestCases.HostApp/FeatureMatrix/CollectionView/CollectionViewControlPage.xaml.cs

@@ -0,0 +1,26 @@
+using System;
+using Microsoft.Maui.Controls;
+using System.Collections.ObjectModel;
+
+namespace Maui.Controls.Sample
+{
+	public partial class CollectionViewControlPage : ContentPage
+	{
+		private CollectionViewViewModel _viewModel;
+
+		public CollectionViewControlPage()
+		{
+			InitializeComponent();
+			_viewModel = new CollectionViewViewModel();
+			_viewModel.ItemsSourceType = ItemsSourceType.ObservableCollection5T;
+			BindingContext = _viewModel;
+		}
+
+		private async void NavigateToOptionsPage_Clicked(object sender, EventArgs e)
+		{
+			BindingContext = _viewModel = new CollectionViewViewModel();
+			_viewModel.ItemsSourceType = ItemsSourceType.ObservableCollection5T;
+			await Navigation.PushAsync(new CollectionViewOptionsPage(_viewModel));
+		}
+	}
+}

src/Controls/tests/TestCases.HostApp/FeatureMatrix/CollectionView/CollectionViewOptionsPage.xaml.cs

@@ -0,0 +1,278 @@
+using System;
+using Microsoft.Maui.Controls;
+using System.Collections.ObjectModel;
+using Maui.Controls.Sample.CollectionViewGalleries;
+
+namespace Maui.Controls.Sample
+{
+    public partial class CollectionViewOptionsPage : ContentPage
+    {
+        private CollectionViewViewModel _viewModel;
+
+        public CollectionViewOptionsPage(CollectionViewViewModel viewModel)
+        {
+            InitializeComponent();
+            _viewModel = viewModel;
+            BindingContext = _viewModel;
+        }
+
+        private void ApplyButton_Clicked(object sender, EventArgs e)
+        {
+            Navigation.PopAsync();
+        }
+
+        private void OnEmptyViewChanged(object sender, CheckedChangedEventArgs e)
+        {
+            if (EmptyViewNone.IsChecked)
+            {
+                _viewModel.EmptyView = null;
+            }
+            else if (EmptyViewString.IsChecked)
+            {
+                _viewModel.EmptyView = "No Items Available(String)";
+            }
+        }
+
+        private void OnHeaderChanged(object sender, CheckedChangedEventArgs e)
+        {
+            if (HeaderNone.IsChecked)
+            {
+                _viewModel.Header = null;
+            }
+            else if (HeaderString.IsChecked)
+            {
+                _viewModel.Header = "CollectionView Header(String)";
+            }
+            else if (HeaderGrid.IsChecked)
+            {
+                Grid grid = new Grid
+                {
+                    BackgroundColor = Colors.LightGray,
+                    Padding = new Thickness(10)
+                };
+                grid.Children.Add(new Label
+                {
+                    Text = "CollectionView Header(Grid View)",
+                    FontSize = 18,
+                    HorizontalOptions = LayoutOptions.Center,
+                    VerticalOptions = LayoutOptions.Center,
+                    TextColor = Colors.Blue,
+                    AutomationId = "HeaderViewLabel"
+                });
+                _viewModel.Header = grid;
+            }
+        }
+
+        private void OnFooterChanged(object sender, CheckedChangedEventArgs e)
+        {
+            if (FooterNone.IsChecked)
+            {
+                _viewModel.Footer = null;
+            }
+            else if (FooterString.IsChecked)
+            {
+                _viewModel.Footer = "CollectionView Footer(String)";
+            }
+            else if (FooterGrid.IsChecked)
+            {
+                Grid grid = new Grid
+                {
+                    BackgroundColor = Colors.LightGray,
+                    Padding = new Thickness(10)
+                };
+                grid.Children.Add(new Label
+                {
+                    Text = "CollectionView Footer(Grid View)",
+                    FontSize = 18,
+                    HorizontalOptions = LayoutOptions.Center,
+                    VerticalOptions = LayoutOptions.Center,
+                    TextColor = Colors.Red,
+                    AutomationId = "FooterViewLabel"
+                });
+                _viewModel.Footer = grid;
+            }
+        }
+
+        private void OnHeaderTemplateChanged(object sender, CheckedChangedEventArgs e)
+        {
+            if (HeaderTemplateNone.IsChecked)
+            {
+                _viewModel.HeaderTemplate = null;
+            }
+            else if (HeaderTemplateGrid.IsChecked)
+            {
+                _viewModel.HeaderTemplate = new DataTemplate(() =>
+                {
+                    Grid grid = new Grid
+                    {
+                        BackgroundColor = Colors.LightGray,
+                        Padding = new Thickness(10)
+                    };
+                    grid.Children.Add(new Label
+                    {
+                        Text = "Header Template(Grid View)",
+                        FontSize = 18,
+                        FontAttributes = FontAttributes.Bold,
+                        HorizontalOptions = LayoutOptions.Center,
+                        VerticalOptions = LayoutOptions.Center,
+                        TextColor = Colors.Blue,
+                        AutomationId = "HeaderTemplateLabel"
+                    });
+                    return grid;
+                });
+            }
+        }
+
+        private void OnFooterTemplateChanged(object sender, CheckedChangedEventArgs e)
+        {
+            if (FooterTemplateNone.IsChecked)
+            {
+                _viewModel.FooterTemplate = null;
+            }
+            else if (FooterTemplateGrid.IsChecked)
+            {
+                _viewModel.FooterTemplate = new DataTemplate(() =>
+                {
+                    Grid grid = new Grid
+                    {
+                        BackgroundColor = Colors.LightGray,
+                        Padding = new Thickness(10)
+                    };
+                    grid.Children.Add(new Label
+                    {
+                        Text = "Footer Template(Grid View)",
+                        FontSize = 18,
+                        FontAttributes = FontAttributes.Bold,
+                        HorizontalOptions = LayoutOptions.Center,
+                        VerticalOptions = LayoutOptions.Center,
+                        TextColor = Colors.Green,
+                        AutomationId = "FooterTemplateLabel"
+                    });
+                    return grid;
+                });
+            }
+        }
+
+        private void OnGroupHeaderTemplateChanged(object sender, CheckedChangedEventArgs e)
+        {
+            if (GroupHeaderTemplateNone.IsChecked)
+            {
+                _viewModel.GroupHeaderTemplate = null;
+            }
+            else if (GroupHeaderTemplateGrid.IsChecked)
+            {
+                _viewModel.GroupHeaderTemplate = new DataTemplate(() =>
+                {
+                    Grid grid = new Grid
+                    {
+                        BackgroundColor = Colors.LightGray,
+                        Padding = new Thickness(10)
+                    };
+                    grid.Children.Add(new Label
+                    {
+                        Text = "Group Header Template(Grid View)",
+                        FontSize = 18,
+                        FontAttributes = FontAttributes.Bold,
+                        HorizontalOptions = LayoutOptions.Center,
+                        VerticalOptions = LayoutOptions.Center,
+                        TextColor = Colors.Green,
+                        AutomationId = "GroupHeaderTemplateLabel"
+                    });
+                    return grid;
+                });
+            }
+        }
+        private void OnGroupFooterTemplateChanged(object sender, CheckedChangedEventArgs e)
+        {
+            if (GroupFooterTemplateNone.IsChecked)
+            {
+                _viewModel.GroupFooterTemplate = null;
+            }
+            else if (GroupFooterTemplateGrid.IsChecked)
+            {
+                _viewModel.GroupFooterTemplate = new DataTemplate(() =>
+                {
+                    Grid grid = new Grid
+                    {
+                        BackgroundColor = Colors.LightGray,
+                        Padding = new Thickness(10)
+                    };
+                    grid.Children.Add(new Label
+                    {
+                        Text = "Group Footer Template(Grid View)",
+                        FontSize = 18,
+                        FontAttributes = FontAttributes.Bold,
+                        HorizontalOptions = LayoutOptions.Center,
+                        VerticalOptions = LayoutOptions.Center,
+                        TextColor = Colors.Red,
+                        AutomationId = "GroupFooterTemplateLabel"
+                    });
+                    return grid;
+                });
+            }
+        }
+        private void OnIsGroupedChanged(object sender, CheckedChangedEventArgs e)
+        {
+            if (IsGroupedFalse.IsChecked)
+            {
+                _viewModel.IsGrouped = false;
+            }
+            else if (IsGroupedTrue.IsChecked)
+            {
+                _viewModel.IsGrouped = true;
+            }
+        }
+
+        private void OnItemTemplateChanged(object sender, CheckedChangedEventArgs e)
+        {
+            if (ItemTemplateNone.IsChecked)
+            {
+                _viewModel.ItemTemplate = null;
+            }
+            else if (ItemTemplateBasic.IsChecked)
+            {
+                _viewModel.ItemTemplate = new DataTemplate(() =>
+                {
+                    var label = new Label();
+                    label.SetBinding(Label.TextProperty, new Binding("Caption"));
+
+                    return label;
+                });
+            }
+        }
+
+        private void OnItemsLayoutChanged(object sender, CheckedChangedEventArgs e)
+        {
+            if (ItemsLayoutVerticalList.IsChecked)
+            {
+                _viewModel.ItemsLayout = new LinearItemsLayout(ItemsLayoutOrientation.Vertical);
+            }
+            else if (ItemsLayoutHorizontalList.IsChecked)
+            {
+                _viewModel.ItemsLayout = new LinearItemsLayout(ItemsLayoutOrientation.Horizontal);
+            }
+            else if (ItemsLayoutVerticalGrid.IsChecked)
+            {
+                _viewModel.ItemsLayout = new GridItemsLayout(2, ItemsLayoutOrientation.Vertical); // 2 columns
+            }
+            else if (ItemsLayoutHorizontalGrid.IsChecked)
+            {
+                _viewModel.ItemsLayout = new GridItemsLayout(2, ItemsLayoutOrientation.Horizontal); // 2 rows
+            }
+        }
+
+        private void OnItemsSourceChanged(object sender, CheckedChangedEventArgs e)
+        {
+            if (!(sender is RadioButton radioButton) || !e.Value)
+                return;
+            if (radioButton == ItemsSourceObservableCollection25)
+                _viewModel.ItemsSourceType = ItemsSourceType.ObservableCollection25T;
+            else if (radioButton == ItemsSourceObservableCollection5)
+                _viewModel.ItemsSourceType = ItemsSourceType.ObservableCollection5T;
+            else if (radioButton == ItemsSourceGroupedList)
+                _viewModel.ItemsSourceType = ItemsSourceType.GroupedListT;
+            else if (radioButton == ItemsSourceNone)
+                _viewModel.ItemsSourceType = ItemsSourceType.None;
+        }
+    }
+}