Bugfix Issue #1705 (MAUI: 184): Allow null handling for BaseConverterOneWay<TFrom, TTo>

Directory.Build.props

@@ -2,7 +2,7 @@
 <Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
 
   <PropertyGroup Condition="'$(MSBuildProjectExtension)' == '.csproj'">
-    <LangVersion>9.0</LangVersion>
+    <LangVersion>latest</LangVersion>
     <Nullable>enable</Nullable>
     <WarningsAsErrors>nullable</WarningsAsErrors>
   </PropertyGroup>

global.json

@@ -0,0 +1,6 @@
+{
+  "sdk": {
+    "version": "6.0.*",
+    "rollForward": "latestMajor"
+  }
+}

samples/XCT.Sample.WPF/DrawingViewRenderer.wpf.cs

@@ -90,7 +90,7 @@ void OnStrokesChanged(object sender, StrokeCollectionChangedEventArgs e)
 					Element.Lines.Clear();
 				}
 
-				var lines = Element.MultiLineMode ? e.Added : new StrokeCollection() {e.Added.First()};
+				var lines = Element.MultiLineMode ? e.Added : new StrokeCollection() { e.Added.First() };
 
 				foreach (var line in lines)
 				{
@@ -100,7 +100,7 @@ void OnStrokesChanged(object sender, StrokeCollectionChangedEventArgs e)
 						Points = new ObservableCollection<Point>(points),
 						LineColor = Color.FromRgba(line.DrawingAttributes.Color.R, line.DrawingAttributes.Color.G,
 							line.DrawingAttributes.Color.B, line.DrawingAttributes.Color.A),
-						LineWidth = (float) line.DrawingAttributes.Width
+						LineWidth = (float)line.DrawingAttributes.Width
 					});
 				}
 
@@ -127,12 +127,12 @@ void LoadLines()
 			var lines = Element.MultiLineMode
 				? Element.Lines
 				: Element.Lines.Any()
-					? new ObservableCollection<Line> {Element.Lines.LastOrDefault()}
+					? new ObservableCollection<Line> { Element.Lines.LastOrDefault() }
 					: new ObservableCollection<Line>();
 			foreach (var line in lines)
 			{
 				var stylusPoints = line.Points.Select(point => new StylusPoint(point.X, point.Y)).ToList();
-				if (stylusPoints is {Count: > 0})
+				if (stylusPoints is { Count: > 0 })
 				{
 					var stroke = new Stroke(new StylusPointCollection(stylusPoints))
 					{

samples/XCT.Sample.sln

@@ -21,6 +21,7 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Solution Items", "Solution
 		..\.editorconfig = ..\.editorconfig
 		..\Directory.Build.props = ..\Directory.Build.props
 		..\Xamarin.CommunityToolkit.ruleset = ..\Xamarin.CommunityToolkit.ruleset
+		..\global.json = ..\global.json
 	EndProjectSection
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Xamarin.CommunityToolkit.Sample.WPF", "XCT.Sample.WPF\Xamarin.CommunityToolkit.Sample.WPF.csproj", "{C4D6CD2D-8DF4-4D46-936C-1AB31C87B5EA}"

samples/XCT.Sample/App.xaml.cs

@@ -22,4 +22,4 @@ public App()
 			MainPage = new BaseNavigationPage(new WelcomePage());
 		}
 	}
-}
+}

samples/XCT.Sample/Pages/Animations/AnimationPage.xaml.cs

@@ -7,4 +7,4 @@ public AnimationPage()
 			InitializeComponent();
 		}
 	}
-}
+}

samples/XCT.Sample/Pages/Behaviors/AnimationBehaviorPage.xaml.cs

@@ -3,5 +3,5 @@
 	public partial class AnimationBehaviorPage : BasePage
 	{
 		public AnimationBehaviorPage() => InitializeComponent();
-    }
+	}
 }

samples/XCT.Sample/Pages/Converters/BoolToObjectConverterPage.xaml.cs

@@ -4,4 +4,4 @@ public partial class BoolToObjectConverterPage
 	{
 		public BoolToObjectConverterPage() => InitializeComponent();
 	}
-}
+}

samples/XCT.Sample/Pages/Converters/CompareConverterPage.xaml.cs

@@ -4,4 +4,4 @@ public partial class CompareConverterPage : BasePage
 	{
 		public CompareConverterPage() => InitializeComponent();
 	}
-}
+}

samples/XCT.Sample/Pages/Converters/DoubleToIntConverterPage.xaml.cs

@@ -4,4 +4,4 @@ public partial class DoubleToIntConverterPage
 	{
 		public DoubleToIntConverterPage() => InitializeComponent();
 	}
-}
+}

samples/XCT.Sample/Pages/Converters/EnumToBoolConverterPage.xaml.cs

@@ -1,7 +1,7 @@
 namespace Xamarin.CommunityToolkit.Sample.Pages.Converters
 {
-    public partial class EnumToBoolConverterPage
-    {
-        public EnumToBoolConverterPage() => InitializeComponent();
-    }
+	public partial class EnumToBoolConverterPage
+	{
+		public EnumToBoolConverterPage() => InitializeComponent();
+	}
 }

samples/XCT.Sample/Pages/Converters/EnumToIntConverterPage.xaml.cs

@@ -4,4 +4,4 @@ public partial class EnumToIntConverterPage
 	{
 		public EnumToIntConverterPage() => InitializeComponent();
 	}
-}
+}

samples/XCT.Sample/Pages/Converters/EqualConverterPage.xaml.cs

@@ -4,4 +4,4 @@ public partial class EqualConverterPage
 	{
 		public EqualConverterPage() => InitializeComponent();
 	}
-}
+}

samples/XCT.Sample/Pages/Converters/IndexToArrayItemConverterPage.xaml.cs

@@ -4,4 +4,4 @@ public partial class IndexToArrayItemConverterPage
 	{
 		public IndexToArrayItemConverterPage() => InitializeComponent();
 	}
-}
+}

samples/XCT.Sample/Pages/Converters/IntToBoolConverterPage.xaml.cs

@@ -4,4 +4,4 @@ public partial class IntToBoolConverterPage
 	{
 		public IntToBoolConverterPage() => InitializeComponent();
 	}
-}
+}

samples/XCT.Sample/Pages/Converters/InvertedBoolConverterPage.xaml.cs

@@ -4,4 +4,4 @@ public partial class InvertedBoolConverterPage
 	{
 		public InvertedBoolConverterPage() => InitializeComponent();
 	}
-}
+}

samples/XCT.Sample/Pages/Converters/IsInRangeConverterPage.xaml.cs

@@ -4,4 +4,4 @@ public partial class IsInRangeConverterPage
 	{
 		public IsInRangeConverterPage() => InitializeComponent();
 	}
-}
+}

samples/XCT.Sample/Pages/Converters/IsNotNullOrEmptyConverterPage.xaml.cs

@@ -4,4 +4,4 @@ public partial class IsNotNullOrEmptyConverterPage
 	{
 		public IsNotNullOrEmptyConverterPage() => InitializeComponent();
 	}
-}
+}

samples/XCT.Sample/Pages/Converters/IsNullOrEmptyConverterPage.xaml.cs

@@ -7,4 +7,4 @@ public IsNullOrEmptyConverterPage()
 			InitializeComponent();
 		}
 	}
-}
+}

samples/XCT.Sample/Pages/Converters/ListIsNotNullOrEmptyConverterPage.xaml.cs

@@ -7,4 +7,4 @@ public ListIsNotNullOrEmptyConverterPage()
 			InitializeComponent();
 		}
 	}
-}
+}

samples/XCT.Sample/Pages/Converters/ListToStringConverterPage.xaml.cs

@@ -4,4 +4,4 @@ public partial class ListToStringConverterPage
 	{
 		public ListToStringConverterPage() => InitializeComponent();
 	}
-}
+}

samples/XCT.Sample/Pages/Converters/MathExpressionConverterPage.xaml.cs

@@ -4,4 +4,4 @@ public partial class MathExpressionConverterPage
 	{
 		public MathExpressionConverterPage() => InitializeComponent();
 	}
-}
+}

samples/XCT.Sample/Pages/Converters/NotEqualConverterPage.xaml.cs

@@ -4,4 +4,4 @@ public partial class NotEqualConverterPage
 	{
 		public NotEqualConverterPage() => InitializeComponent();
 	}
-}
+}

samples/XCT.Sample/Pages/Converters/StringToListConverterPage.xaml.cs

@@ -7,4 +7,4 @@ public StringToListConverterPage()
 			InitializeComponent();
 		}
 	}
-}
+}

samples/XCT.Sample/Pages/Converters/TextCaseConverterPage.xaml.cs

@@ -4,4 +4,4 @@ public partial class TextCaseConverterPage
 	{
 		public TextCaseConverterPage() => InitializeComponent();
 	}
-}
+}

samples/XCT.Sample/Pages/Effects/ShadowEffectPage.xaml.cs

@@ -4,4 +4,4 @@ public partial class ShadowEffectPage
 	{
 		public ShadowEffectPage() => InitializeComponent();
 	}
-}
+}

samples/XCT.Sample/Pages/Effects/StatusBarEffectPage.xaml.cs

@@ -4,4 +4,4 @@ public partial class StatusBarEffectPage
 	{
 		public StatusBarEffectPage() => InitializeComponent();
 	}
-}
+}

samples/XCT.Sample/Pages/TestCases/Popups/SimplePopup.xaml.cs

@@ -1,6 +1,6 @@
 namespace Xamarin.CommunityToolkit.Sample.Pages.TestCases.Popups
 {
-	public partial class SimplePopup 
+	public partial class SimplePopup
 	{
 		public SimplePopup() => InitializeComponent();
 	}

samples/XCT.Sample/Pages/TestCases/TouchEffectCollectionViewPage.xaml.cs

@@ -13,4 +13,4 @@ public TouchEffectCollectionViewPage()
 
 		public ICommand LongPressCommand { get; }
 	}
-}
+}

samples/XCT.Sample/Pages/Views/DrawingViewPage.xaml.cs

@@ -1,9 +1,9 @@
 using System;
 using System.Collections.Generic;
-using Xamarin.Forms;
-using Xamarin.CommunityToolkit.UI.Views;
 using System.Collections.ObjectModel;
 using System.Linq;
+using Xamarin.CommunityToolkit.UI.Views;
+using Xamarin.Forms;
 
 namespace Xamarin.CommunityToolkit.Sample.Pages.Views
 {

samples/XCT.Sample/Pages/Views/Popups/PopupSize.cs

@@ -15,4 +15,4 @@ static class PopupSize
 
 		public static Size Large => new Size(0.9 * (DeviceDisplay.MainDisplayInfo.Width / DeviceDisplay.MainDisplayInfo.Density), 0.8 * (DeviceDisplay.MainDisplayInfo.Height / DeviceDisplay.MainDisplayInfo.Density));
 	}
-}
+}

samples/XCT.Sample/Pages/Views/Popups/TransparentPopup.xaml.cs

@@ -1,6 +1,6 @@
-using Xamarin.Forms.PlatformConfiguration;
-using Xamarin.CommunityToolkit.PlatformConfiguration.iOSSpecific;
+using Xamarin.CommunityToolkit.PlatformConfiguration.iOSSpecific;
 using Xamarin.CommunityToolkit.PlatformConfiguration.WindowsSpecific;
+using Xamarin.Forms.PlatformConfiguration;
 
 namespace Xamarin.CommunityToolkit.Sample.Pages.Views.Popups
 {

samples/XCT.Sample/Pages/Views/TextSwitcherPage.xaml.cs

@@ -13,4 +13,4 @@ public TextSwitcherPage()
 		public ICommand UpdateTextCommand { get; }
 			= new Command<TextSwitcher>(textSwitcher => textSwitcher.Text = Path.GetRandomFileName());
 	}
-}
+}

samples/XCT.Sample/ViewModels/Animations/AnimationViewModel.cs

@@ -88,5 +88,4 @@ public AnimationDetailModel(string name, Func<View, Action<double, bool>, Compou
 			CreateAnimation = createAnimation;
 		}
 	}
-}
-
+}

samples/XCT.Sample/ViewModels/Converters/ConvertersGalleryViewModel.cs

@@ -121,4 +121,4 @@ protected override IEnumerable<SectionModel> CreateItems() => new[]
 				"A group of converters that convert a Color to your strings values (RGB, HEX, HSL, etc)"),
 		};
 	}
-}
+}

samples/XCT.Sample/ViewModels/Converters/DoubleToIntConverterViewModel.cs

@@ -10,4 +10,4 @@ public double Input
 			set => SetProperty(ref index, value);
 		}
 	}
-}
+}

samples/XCT.Sample/ViewModels/Converters/EnumToIntConverterViewModel.cs

@@ -14,4 +14,4 @@ public IssueState SelectedState
 			set => SetProperty(ref selectedState, value);
 		}
 	}
-}
+}

samples/XCT.Sample/ViewModels/Converters/ImageResourceConverterViewModel.cs

@@ -9,7 +9,7 @@ public class ImageResourceConverterViewModel : BaseViewModel
 		const string img1 = "button.png";
 		const string img2 = "logo.png";
 		const string imagesPath = "Images";
-		
+
 		string defaultNamespace;
 
 		string? imageName;
@@ -38,4 +38,4 @@ public ImageResourceConverterViewModel()
 		string BuildEmbededImagePath(string imgName)
 			=> $"{defaultNamespace}.{imagesPath}.{imgName}";
 	}
-}
+}

samples/XCT.Sample/ViewModels/Converters/IndexToArrayItemConverterViewModel.cs

@@ -14,4 +14,4 @@ public int Index
 			}
 		}
 	}
-}
+}

samples/XCT.Sample/ViewModels/Converters/IntToBoolConverterViewModel.cs

@@ -10,4 +10,4 @@ public int Number
 			set => SetProperty(ref index, value);
 		}
 	}
-}
+}

samples/XCT.Sample/ViewModels/Converters/IsNullOrEmptyConverterViewModel.cs

@@ -29,4 +29,4 @@ public string? SelectedItem
 			set => SetProperty(ref selectedItem, value);
 		}
 	}
-}
+}

samples/XCT.Sample/ViewModels/Extensions/ExtensionsGalleryViewModel.cs

@@ -15,4 +15,4 @@ protected override IEnumerable<SectionModel> CreateItems() => new[]
 				"A XAML extension that helps to display images from embedded resources"),
 		};
 	}
-}
+}

samples/XCT.Sample/ViewModels/Markup/SearchViewModel.cs

@@ -69,8 +69,8 @@ public SearchViewModel()
 		public ICommand OpenHelpCommand { get; }
 
 		void Back()
-        {
-        }
+		{
+		}
 
 		void Like(Tweet tweet) => tweet.IsLikedByMe = !tweet.IsLikedByMe;
 

samples/XCT.Sample/ViewModels/TestCases/Popups/PopupModalViewModel.cs

@@ -1,7 +1,7 @@
 using System.Windows.Input;
-using Xamarin.Forms;
-using Xamarin.CommunityToolkit.Sample.Pages.TestCases.Popups;
 using Xamarin.CommunityToolkit.Extensions;
+using Xamarin.CommunityToolkit.Sample.Pages.TestCases.Popups;
+using Xamarin.Forms;
 
 namespace Xamarin.CommunityToolkit.Sample.ViewModels.TestCases.Popups
 {
@@ -32,4 +32,4 @@ async void PerformPopModal()
 				await Navigation.PopModalAsync();
 		}
 	}
-}
+}

samples/XCT.Sample/ViewModels/TestCases/TabViewItemBindingViewModel.cs

@@ -6,7 +6,7 @@ namespace Xamarin.CommunityToolkit.Sample.ViewModels.TestCases
 {
 	public class TabViewItemBindingViewModel : BaseViewModel
 	{
-		public static TabViewItemBindingViewModel Current { get; } = new ();
+		public static TabViewItemBindingViewModel Current { get; } = new();
 
 		int countClick;
 

samples/XCT.Sample/ViewModels/Views/PopupControlViewModel.cs

@@ -58,4 +58,4 @@ async Task OnDisplayPopup(Type? popupType)
 			}
 		}
 	}
-}
+}

samples/XCT.Sample/ViewModels/Views/Popups/CsharpBindingPopupViewModel.cs

@@ -6,4 +6,4 @@ public class CsharpBindingPopupViewModel
 
 		public string Message { get; } = "This is a native popup with a Xamarin.Forms View being rendered. The behaviors of the popup will confirm to 100% native look and feel, but still allows you to use your Xamarin.Forms controls.";
 	}
-}
+}