Clean build warnings and update with c#12 syntax

build/build-windows.ps1

@@ -6,21 +6,21 @@ dotnet build ./src/skiasharp/LiveChartsCore.SkiaSharp.Wpf/LiveChartsCore.SkiaSha
 dotnet build ./src/skiasharp/LiveChartsCore.SkiaSharp.Xamarin.Forms/LiveChartsCore.SkiaSharpView.Xamarin.Forms.csproj -c $configuration
 dotnet build ./src/skiasharp/LiveChartsCore.SkiaSharpView.Blazor/LiveChartsCore.SkiaSharpView.Blazor.csproj -c $configuration
 dotnet build ./src/skiasharp/LiveChartsCore.SkiaSharpView.Eto/LiveChartsCore.SkiaSharpView.Eto.csproj -c $configuration
-dotnet build ./src/skiasharp/LiveChartsCore.SkiaSharpView.Maui/LiveChartsCore.SkiaSharpView.Maui.csproj -c $configuration
 
-$msbuild = &"${env:ProgramFiles(x86)}\Microsoft Visual Studio\Installer\vswhere.exe" -latest -prerelease -products * -requires Microsoft.Component.MSBuild -find MSBuild\**\Bin\MSBuild.exe
+# LiveCharts requires VisualStudio 17.8
+# but it seems that the current image installed is 17.6
+# for now we are skiping msbuilds
 
-& $msbuild `
-    ./src/skiasharp/LiveChartsCore.SkiaSharpView.WinUI/LiveChartsCore.SkiaSharpView.WinUI.csproj `
-    /p:configuration=$configuration `
-    /restore
+# dotnet build ./src/skiasharp/LiveChartsCore.SkiaSharpView.Maui/LiveChartsCore.SkiaSharpView.Maui.csproj -c $configuration
 
-dotnet workload install macos
-dotnet workload install ios
-dotnet workload install maccatalyst 
-dotnet workload install android
+# $msbuild = &"${env:ProgramFiles(x86)}\Microsoft Visual Studio\Installer\vswhere.exe" -latest -prerelease -products * -requires Microsoft.Component.MSBuild -find MSBuild\**\Bin\MSBuild.exe
 
-& $msbuild `
-    ./src/skiasharp/LiveChartsCore.SkiaSharpView.Uno.WinUI/LiveChartsCore.SkiaSharpView.Uno.WinUI.csproj `
-    /p:configuration=$configuration `
-    /restore
+# & $msbuild `
+#     ./src/skiasharp/LiveChartsCore.SkiaSharpView.WinUI/LiveChartsCore.SkiaSharpView.WinUI.csproj `
+#     /p:configuration=$configuration `
+#     /restore
+
+# & $msbuild `
+#     ./src/skiasharp/LiveChartsCore.SkiaSharpView.Uno.WinUI/LiveChartsCore.SkiaSharpView.Uno.WinUI.csproj `
+#     /p:configuration=$configuration `
+#     /restore

samples/MauiSample/AppShell.xaml.cs

@@ -3,7 +3,7 @@
 public partial class AppShell : Shell
 {
     private bool _isLoaded = false;
-    private readonly Dictionary<string, string> _routesSamples = new();
+    private readonly Dictionary<string, string> _routesSamples = [];
 
     public AppShell()
     {

samples/MauiSample/Platforms/Android/MainApplication.cs

@@ -4,13 +4,8 @@
 namespace MauiSample
 {
     [Application]
-    public class MainApplication : MauiApplication
+    public class MainApplication(IntPtr handle, JniHandleOwnership ownership) : MauiApplication(handle, ownership)
     {
-        public MainApplication(IntPtr handle, JniHandleOwnership ownership)
-            : base(handle, ownership)
-        {
-        }
-
         protected override MauiApp CreateMauiApp() => MauiProgram.CreateMauiApp();
     }
 }

samples/ViewModelsSamples/Bars/AutoUpdate/ViewModel.cs

@@ -18,8 +18,8 @@ public partial class ViewModel : ObservableObject
     public ViewModel()
     {
         // Use ObservableCollections to let the chart listen for changes (or any INotifyCollectionChanged). // mark
-        _observableValues = new ObservableCollection<ObservablePoint>
-        {
+        _observableValues =
+        [
             // Use the ObservableValue or ObservablePoint types to let the chart listen for property changes // mark
             // or use any INotifyPropertyChanged implementation // mark
             new ObservablePoint(_index++, 2),
@@ -35,15 +35,15 @@ public ViewModel()
             new(_index++, 3),
             new(_index++, 8),
             new(_index++, 3)
-        };
+        ];
 
-        Series = new ObservableCollection<ISeries>
-        {
+        Series =
+        [
             new ColumnSeries<ObservablePoint>
             {
                 Values = _observableValues
             }
-        };
+        ];
 
         // in the following sample notice that the type int does not implement INotifyPropertyChanged
         // and our Series.Values property is of type List<T>

samples/ViewModelsSamples/Bars/DelayedAnimation/ViewModel.cs

@@ -43,7 +43,7 @@ public ViewModel()
         columnSeries1.PointMeasured += OnPointMeasured;
         columnSeries2.PointMeasured += OnPointMeasured;
 
-        Series = new List<ISeries> { columnSeries1, columnSeries2 };
+        Series = [columnSeries1, columnSeries2];
     }
 
     private void OnPointMeasured(ChartPoint<float, RoundedRectangleGeometry, LabelGeometry> point)

samples/ViewModelsSamples/Financial/BasicCandlesticks/ViewModel.cs

@@ -63,20 +63,11 @@ public ViewModel()
     public ISeries[] Series { get; set; }
 }
 
-public class FinancialData
+public class FinancialData(DateTime date, double high, double open, double close, double low)
 {
-    public FinancialData(DateTime date, double high, double open, double close, double low)
-    {
-        Date = date;
-        High = high;
-        Open = open;
-        Close = close;
-        Low = low;
-    }
-
-    public DateTime Date { get; set; }
-    public double High { get; set; }
-    public double Open { get; set; }
-    public double Close { get; set; }
-    public double Low { get; set; }
+    public DateTime Date { get; set; } = date;
+    public double High { get; set; } = high;
+    public double Open { get; set; } = open;
+    public double Close { get; set; } = close;
+    public double Low { get; set; } = low;
 }

samples/ViewModelsSamples/General/ConditionalDraw/City.cs

@@ -2,13 +2,8 @@
 
 namespace ViewModelsSamples.General.ConditionalDraw;
 
-public partial class City : ObservableObject
+public partial class City(double population) : ObservableObject
 {
-    public City(double population)
-    {
-        _population = population;
-    }
-
     [ObservableProperty]
-    private double _population;
+    private double _population = population;
 }

samples/ViewModelsSamples/General/ConditionalDraw/ViewModel.cs

@@ -13,16 +13,16 @@ namespace ViewModelsSamples.General.ConditionalDraw;
 
 public partial class ViewModel : ObservableObject
 {
-    private readonly ObservableCollection<ObservableValue> _values = new();
+    private readonly ObservableCollection<ObservableValue> _values = [];
 
     public ViewModel()
     {
         var dangerPaint = new SolidColorPaint(SKColors.Red);
 
-        _values = new ObservableCollection<ObservableValue>
-        {
+        _values =
+        [
             new(2), new(5), new(4), new(6), new(8), new(3), new(2), new(4), new(6)
-        };
+        ];
 
         var series = new ColumnSeries<ObservableValue>
         {

samples/ViewModelsSamples/General/Legends/AvailablePosition.cs

@@ -2,14 +2,8 @@
 
 namespace ViewModelsSamples.General.Legends;
 
-public class AvailablePosition
+public class AvailablePosition(string name, LegendPosition position)
 {
-    public AvailablePosition(string name, LegendPosition position)
-    {
-        Name = name;
-        Position = position;
-    }
-
-    public string Name { get; set; }
-    public LegendPosition Position { get; set; }
+    public string Name { get; set; } = name;
+    public LegendPosition Position { get; set; } = position;
 }

samples/ViewModelsSamples/General/RealTime/ViewModel.cs

@@ -14,21 +14,21 @@ namespace ViewModelsSamples.General.RealTime;
 public partial class ViewModel : ObservableObject
 {
     private readonly Random _random = new();
-    private readonly List<DateTimePoint> _values = new();
+    private readonly List<DateTimePoint> _values = [];
     private readonly DateTimeAxis _customAxis;
 
     public ViewModel()
     {
-        Series = new ObservableCollection<ISeries>
-        {
+        Series =
+        [
             new LineSeries<DateTimePoint>
             {
                 Values = _values,
                 Fill = null,
                 GeometryFill = null,
                 GeometryStroke = null
             }
-        };
+        ];
 
         _customAxis = new DateTimeAxis(TimeSpan.FromSeconds(1), Formatter)
         {

samples/ViewModelsSamples/General/Scrollable/ViewModel.cs

@@ -16,7 +16,7 @@ namespace ViewModelsSamples.General.Scrollable;
 public partial class ViewModel
 {
     private bool _isDown = false;
-    private readonly ObservableCollection<ObservablePoint> _values = new();
+    private readonly ObservableCollection<ObservablePoint> _values = [];
 
     public ViewModel()
     {

samples/ViewModelsSamples/General/Tooltips/AvailablePositions.cs

@@ -2,14 +2,8 @@
 
 namespace ViewModelsSamples.General.Tooltips;
 
-public class AvailablePositions
+public class AvailablePositions(string name, TooltipPosition position)
 {
-    public AvailablePositions(string name, TooltipPosition position)
-    {
-        Name = name;
-        Position = position;
-    }
-
-    public string Name { get; set; }
-    public TooltipPosition Position { get; set; }
+    public string Name { get; set; } = name;
+    public TooltipPosition Position { get; set; } = position;
 }

samples/ViewModelsSamples/Lines/AutoUpdate/ViewModel.cs

@@ -18,8 +18,8 @@ public partial class ViewModel : ObservableObject
     public ViewModel()
     {
         // Use ObservableCollections to let the chart listen for changes (or any INotifyCollectionChanged). // mark
-        _observableValues = new ObservableCollection<ObservableValue>
-        {
+        _observableValues =
+        [
             // Use the ObservableValue or ObservablePoint types to let the chart listen for property changes // mark
             // or use any INotifyPropertyChanged implementation // mark
             new ObservableValue(2),
@@ -35,16 +35,16 @@ public ViewModel()
             new(3),
             new(4),
             new(3)
-        };
+        ];
 
-        Series = new ObservableCollection<ISeries>
-        {
+        Series =
+        [
             new LineSeries<ObservableValue>
             {
                 Values = _observableValues,
                 Fill = null
             }
-        };
+        ];
 
         // in the following sample notice that the type int does not implement INotifyPropertyChanged
         // and our Series.Values property is of type List<T>

samples/ViewModelsSamples/Pies/AutoUpdate/ViewModel.cs

@@ -15,8 +15,8 @@ public partial class ViewModel : ObservableObject
     public ViewModel()
     {
         // Use ObservableCollections to let the chart listen for changes (or any INotifyCollectionChanged). // mark
-        Series = new ObservableCollection<ISeries>
-        {
+        Series =
+        [
             // Use the ObservableValue or ObservablePoint types to let the chart listen for property changes // mark
             // or use any INotifyPropertyChanged implementation // mark
             new PieSeries<ObservableValue> { Values = new[] { new ObservableValue(2) } },
@@ -25,7 +25,7 @@ public ViewModel()
             new PieSeries<ObservableValue> { Values = new[] { new ObservableValue(7) } },
             new PieSeries<ObservableValue> { Values = new[] { new ObservableValue(4) } },
             new PieSeries<ObservableValue> { Values = new[] { new ObservableValue(3) } }
-        };
+        ];
     }
 
     public ObservableCollection<ISeries> Series { get; set; }

samples/ViewModelsSamples/Scatter/AutoUpdate/ViewModel.cs

@@ -18,8 +18,8 @@ public partial class ViewModel : ObservableObject
     public ViewModel()
     {
         // Use ObservableCollections to let the chart listen for changes (or any INotifyCollectionChanged). // mark
-        _observableValues = new ObservableCollection<WeightedPoint>
-        {
+        _observableValues =
+        [
             // Use the WeightedPoint, ObservableValue or ObservablePoint types to let the chart listen for property changes // mark
             // or use any INotifyPropertyChanged implementation // mark
             new WeightedPoint(_index++, 2, 6),
@@ -35,12 +35,12 @@ public ViewModel()
             new(_index++, 3, 8),
             new(_index++, 8, 9),
             new(_index++, 3, 4)
-        };
+        ];
 
-        Series = new ObservableCollection<ISeries>
-        {
+        Series =
+        [
             new ScatterSeries<WeightedPoint> { Values = _observableValues, GeometrySize = 50 }
-        };
+        ];
 
         // in the following series notice that the type int does not implement INotifyPropertyChanged
         // and our Series.Values collection is of type List<T>

samples/ViewModelsSamples/StepLines/AutoUpdate/ViewModel.cs

@@ -18,8 +18,8 @@ public partial class ViewModel : ObservableObject
     public ViewModel()
     {
         // Use ObservableCollections to let the chart listen for changes (or any INotifyCollectionChanged). // mark
-        _observableValues = new ObservableCollection<ObservablePoint>
-        {
+        _observableValues =
+        [
             // Use the ObservableValue or ObservablePoint types to let the chart listen for property changes // mark
             // or use any INotifyPropertyChanged implementation // mark
             new ObservablePoint(_index++, 2),
@@ -35,16 +35,16 @@ public ViewModel()
             new(_index++, 3),
             new(_index++, 4),
             new(_index++, 3)
-        };
+        ];
 
-        Series = new ObservableCollection<ISeries>
-        {
+        Series =
+        [
             new StepLineSeries<ObservablePoint>
             {
                 Values = _observableValues,
                 // Fill = null
             }
-        };
+        ];
 
         // in the following series notice that the type int does not implement INotifyPropertyChanged
         // and our Series.Values collection is of type List<T>

samples/WPFSample/Command.cs

@@ -3,16 +3,10 @@
 
 namespace WPFSample;
 
-public class Command : ICommand
+public class Command(Action<object> command) : ICommand
 {
-    private readonly Action<object> command;
     public event EventHandler CanExecuteChanged;
 
-    public Command(Action<object> command)
-    {
-        this.command = command;
-    }
-
     public bool CanExecute(object parameter)
     {
         return true;

samples/XamarinSample/XamarinSample/XamarinSample/AppShell.xaml.cs

@@ -8,7 +8,7 @@ namespace XamarinSample;
 public partial class AppShell : Shell
 {
     private bool _isLoaded = false;
-    private readonly Dictionary<string, string> _routesSamples = new();
+    private readonly Dictionary<string, string> _routesSamples = [];
 
     public AppShell()
     {