fix #1140 "System.ArgumentNullException: 'Value cannot be null. Parameter name: defaultDestinationValue'"

Wpf.Ui.sln

@@ -59,6 +59,8 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Wpf.Ui.Demo.Dialogs", "samp
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Wpf.Ui.DependencyInjection", "src\Wpf.Ui.DependencyInjection\Wpf.Ui.DependencyInjection.csproj", "{9C8D6133-9417-43A1-B54F-725009569D71}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Wpf.Ui.Demo.SetResources.Simple", "samples\Wpf.Ui.Demo.SetResources.Simple\Wpf.Ui.Demo.SetResources.Simple.csproj", "{3B424CF4-09F8-47D3-8420-53D7A1165B9C}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -353,6 +355,22 @@ Global
 		{9C8D6133-9417-43A1-B54F-725009569D71}.Release|x64.Build.0 = Release|Any CPU
 		{9C8D6133-9417-43A1-B54F-725009569D71}.Release|x86.ActiveCfg = Release|Any CPU
 		{9C8D6133-9417-43A1-B54F-725009569D71}.Release|x86.Build.0 = Release|Any CPU
+		{3B424CF4-09F8-47D3-8420-53D7A1165B9C}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{3B424CF4-09F8-47D3-8420-53D7A1165B9C}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{3B424CF4-09F8-47D3-8420-53D7A1165B9C}.Debug|arm64.ActiveCfg = Debug|Any CPU
+		{3B424CF4-09F8-47D3-8420-53D7A1165B9C}.Debug|arm64.Build.0 = Debug|Any CPU
+		{3B424CF4-09F8-47D3-8420-53D7A1165B9C}.Debug|x64.ActiveCfg = Debug|Any CPU
+		{3B424CF4-09F8-47D3-8420-53D7A1165B9C}.Debug|x64.Build.0 = Debug|Any CPU
+		{3B424CF4-09F8-47D3-8420-53D7A1165B9C}.Debug|x86.ActiveCfg = Debug|Any CPU
+		{3B424CF4-09F8-47D3-8420-53D7A1165B9C}.Debug|x86.Build.0 = Debug|Any CPU
+		{3B424CF4-09F8-47D3-8420-53D7A1165B9C}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{3B424CF4-09F8-47D3-8420-53D7A1165B9C}.Release|Any CPU.Build.0 = Release|Any CPU
+		{3B424CF4-09F8-47D3-8420-53D7A1165B9C}.Release|arm64.ActiveCfg = Release|Any CPU
+		{3B424CF4-09F8-47D3-8420-53D7A1165B9C}.Release|arm64.Build.0 = Release|Any CPU
+		{3B424CF4-09F8-47D3-8420-53D7A1165B9C}.Release|x64.ActiveCfg = Release|Any CPU
+		{3B424CF4-09F8-47D3-8420-53D7A1165B9C}.Release|x64.Build.0 = Release|Any CPU
+		{3B424CF4-09F8-47D3-8420-53D7A1165B9C}.Release|x86.ActiveCfg = Release|Any CPU
+		{3B424CF4-09F8-47D3-8420-53D7A1165B9C}.Release|x86.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
@@ -364,6 +382,7 @@ Global
 		{5138077E-670E-413D-94D1-0825B6D1201B} = {D7EA6A65-3CB5-4A59-934A-B8402C849107}
 		{E37CD05A-EBFC-429D-A550-BEE44119FA9E} = {D7EA6A65-3CB5-4A59-934A-B8402C849107}
 		{7F6C7E7A-A4B5-4D12-88EB-217CA59284F4} = {D7EA6A65-3CB5-4A59-934A-B8402C849107}
+		{3B424CF4-09F8-47D3-8420-53D7A1165B9C} = {D7EA6A65-3CB5-4A59-934A-B8402C849107}
 	EndGlobalSection
 	GlobalSection(ExtensibilityGlobals) = postSolution
 		SolutionGuid = {234CB3F9-5ADC-433F-BDBD-CB8EA59EB518}

samples/Wpf.Ui.Demo.SetResources.Simple/App.xaml

@@ -0,0 +1,7 @@
+<Application
+    x:Class="Wpf.Ui.Demo.SetResources.Simple.App"
+    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+    xmlns:ui="http://schemas.lepo.co/wpfui/2022/xaml"
+    StartupUri="MainWindow.xaml">
+</Application>

samples/Wpf.Ui.Demo.SetResources.Simple/App.xaml.cs

@@ -0,0 +1,30 @@
+// This Source Code Form is subject to the terms of the MIT License.
+// If a copy of the MIT was not distributed with this file, You can obtain one at https://opensource.org/licenses/MIT.
+// Copyright (C) Leszek Pomianowski and WPF UI Contributors.
+// All Rights Reserved.
+
+using System.Windows;
+using Wpf.Ui.Appearance;
+using Wpf.Ui.Markup;
+
+namespace Wpf.Ui.Demo.SetResources.Simple;
+
+/// <summary>
+/// Interaction logic for App.xaml
+/// </summary>
+public partial class App
+{
+    public static readonly ThemesDictionary ThemesDictionary = new();
+    public static readonly ControlsDictionary ControlsDictionary = new();
+
+    public static void Apply(ApplicationTheme theme)
+    {
+        ThemesDictionary.Theme = theme;
+    }
+
+    public static void ApplyTheme(FrameworkElement element)
+    {
+        element.Resources.MergedDictionaries.Add(ThemesDictionary);
+        element.Resources.MergedDictionaries.Add(ControlsDictionary);
+    }
+}

samples/Wpf.Ui.Demo.SetResources.Simple/AssemblyInfo.cs

@@ -0,0 +1,11 @@
+// This Source Code Form is subject to the terms of the MIT License.
+// If a copy of the MIT was not distributed with this file, You can obtain one at https://opensource.org/licenses/MIT.
+// Copyright (C) Leszek Pomianowski and WPF UI Contributors.
+// All Rights Reserved.
+
+using System.Windows;
+
+[assembly: ThemeInfo(
+    ResourceDictionaryLocation.None, // where theme specific resource dictionaries are located (used if a resource is not found in the page, or application resource dictionaries)
+    ResourceDictionaryLocation.SourceAssembly // where the generic resource dictionary is located (used if a resource is not found in the page, app, or any theme specific resource dictionaries)
+)]

samples/Wpf.Ui.Demo.SetResources.Simple/MainWindow.xaml

@@ -0,0 +1,107 @@
+<ui:FluentWindow
+    x:Class="Wpf.Ui.Demo.SetResources.Simple.MainWindow"
+    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+    xmlns:tray="http://schemas.lepo.co/wpfui/2022/xaml/tray"
+    xmlns:ui="http://schemas.lepo.co/wpfui/2022/xaml"
+    xmlns:pages="clr-namespace:Wpf.Ui.Demo.SetResources.Simple.Views.Pages"
+    Title="WPF UI - Simple Demo"
+    Width="1100"
+    Height="650"
+    d:DesignHeight="450"
+    d:DesignWidth="800"
+    ui:Design.Background="{DynamicResource ApplicationBackgroundBrush}"
+    ui:Design.Foreground="{DynamicResource TextFillColorPrimaryBrush}"
+    ExtendsContentIntoTitleBar="True"
+    Foreground="{DynamicResource TextFillColorPrimaryBrush}"
+    WindowBackdropType="Mica"
+    WindowCornerPreference="Round"
+    WindowStartupLocation="CenterScreen"
+    mc:Ignorable="d">
+
+    <ui:FluentWindow.InputBindings>
+        <KeyBinding
+            Key="F"
+            Command="{Binding ElementName=AutoSuggestBox, Path=FocusCommand}"
+            Modifiers="Control" />
+    </ui:FluentWindow.InputBindings>
+
+    <Grid>
+        <Grid.RowDefinitions>
+            <RowDefinition Height="Auto" />
+            <RowDefinition Height="*" />
+        </Grid.RowDefinitions>
+
+        <ui:NavigationView x:Name="RootNavigation" Grid.Row="1">
+            <ui:NavigationView.AutoSuggestBox>
+                <ui:AutoSuggestBox x:Name="AutoSuggestBox" PlaceholderText="Search">
+                    <ui:AutoSuggestBox.Icon>
+                        <ui:IconSourceElement>
+                            <ui:SymbolIconSource Symbol="Search24" />
+                        </ui:IconSourceElement>
+                    </ui:AutoSuggestBox.Icon>
+                </ui:AutoSuggestBox>
+            </ui:NavigationView.AutoSuggestBox>
+            <ui:NavigationView.Header>
+                <ui:BreadcrumbBar
+                    Margin="42,32,0,0"
+                    FontSize="28"
+                    FontWeight="DemiBold" />
+            </ui:NavigationView.Header>
+            <ui:NavigationView.MenuItems>
+                <ui:NavigationViewItem
+                    Content="Dashboard"
+                    NavigationCacheMode="Enabled"
+                    TargetPageType="{x:Type pages:DashboardPage}">
+                    <ui:NavigationViewItem.Icon>
+                        <ui:SymbolIcon Symbol="Home24" />
+                    </ui:NavigationViewItem.Icon>
+                </ui:NavigationViewItem>
+                <ui:NavigationViewItem
+                    Content="Data"
+                    NavigationCacheMode="Enabled"
+                    TargetPageType="{x:Type pages:DataPage}">
+                    <ui:NavigationViewItem.Icon>
+                        <ui:SymbolIcon Symbol="DataHistogram24" />
+                    </ui:NavigationViewItem.Icon>
+                </ui:NavigationViewItem>
+                <ui:NavigationViewItem
+                    Content="Expanders"
+                    NavigationCacheMode="Enabled"
+                    TargetPageType="{x:Type pages:ExpanderPage}">
+                    <ui:NavigationViewItem.Icon>
+                        <ui:SymbolIcon Symbol="ExpandUpLeft24" />
+                    </ui:NavigationViewItem.Icon>
+                </ui:NavigationViewItem>
+            </ui:NavigationView.MenuItems>
+            <ui:NavigationView.FooterMenuItems>
+                <ui:NavigationViewItem
+                    Content="Settings"
+                    NavigationCacheMode="Disabled"
+                    TargetPageType="{x:Type pages:SettingsPage}">
+                    <ui:NavigationViewItem.Icon>
+                        <ui:SymbolIcon Symbol="Settings24" />
+                    </ui:NavigationViewItem.Icon>
+                </ui:NavigationViewItem>
+            </ui:NavigationView.FooterMenuItems>
+        </ui:NavigationView>
+
+        <ui:TitleBar
+            Title="WPF UI - Simple Demo"
+            Grid.Row="0"
+            Icon="pack://application:,,,/Assets/applicationIcon-256.png" />
+
+        <tray:NotifyIcon
+            Grid.Row="0"
+            FocusOnLeftClick="True"
+            Icon="pack://application:,,,/Assets/applicationIcon-256.png"
+            MenuOnRightClick="True"
+            TooltipText="Wpf.Ui.Demo.Simple">
+            <tray:NotifyIcon.Menu>
+                <ContextMenu ItemsSource="{Binding ViewModel.TrayMenuItems, Mode=OneWay}" />
+            </tray:NotifyIcon.Menu>
+        </tray:NotifyIcon>
+    </Grid>
+</ui:FluentWindow>

samples/Wpf.Ui.Demo.SetResources.Simple/MainWindow.xaml.cs

@@ -0,0 +1,28 @@
+// This Source Code Form is subject to the terms of the MIT License.
+// If a copy of the MIT was not distributed with this file, You can obtain one at https://opensource.org/licenses/MIT.
+// Copyright (C) Leszek Pomianowski and WPF UI Contributors.
+// All Rights Reserved.
+
+using Wpf.Ui.Appearance;
+using Wpf.Ui.Controls;
+using Wpf.Ui.Demo.SetResources.Simple.Views.Pages;
+using Wpf.Ui.Markup;
+
+namespace Wpf.Ui.Demo.SetResources.Simple;
+
+/// <summary>
+/// Interaction logic for MainWindow.xaml
+/// </summary>
+public partial class MainWindow
+{
+    public MainWindow()
+    {
+        DataContext = this;
+
+        App.ApplyTheme(this);
+
+        InitializeComponent();
+
+        Loaded += (_, _) => RootNavigation.Navigate(typeof(DashboardPage));
+    }
+}

samples/Wpf.Ui.Demo.SetResources.Simple/Models/DataColor.cs

@@ -0,0 +1,13 @@
+// This Source Code Form is subject to the terms of the MIT License.
+// If a copy of the MIT was not distributed with this file, You can obtain one at https://opensource.org/licenses/MIT.
+// Copyright (C) Leszek Pomianowski and WPF UI Contributors.
+// All Rights Reserved.
+
+using System.Windows.Media;
+
+namespace Wpf.Ui.Demo.SetResources.Simple.Models;
+
+public struct DataColor
+{
+    public Brush Color { get; set; }
+}

samples/Wpf.Ui.Demo.SetResources.Simple/Models/DataGroup.cs

@@ -0,0 +1,20 @@
+// This Source Code Form is subject to the terms of the MIT License.
+// If a copy of the MIT was not distributed with this file, You can obtain one at https://opensource.org/licenses/MIT.
+// Copyright (C) Leszek Pomianowski and WPF UI Contributors.
+// All Rights Reserved.
+
+namespace Wpf.Ui.Demo.SetResources.Simple.Models;
+
+public class DataGroup
+{
+    public DataGroup(bool selected, string name, string groupName)
+    {
+        Selected = selected;
+        Name = name;
+        GroupName = groupName;
+    }
+
+    public bool Selected { get; set; }
+    public string Name { get; set; }
+    public string GroupName { get; set; }
+}

samples/Wpf.Ui.Demo.SetResources.Simple/Views/Pages/DashboardPage.xaml

@@ -0,0 +1,33 @@
+<Page
+    x:Class="Wpf.Ui.Demo.SetResources.Simple.Views.Pages.DashboardPage"
+    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+    xmlns:ui="http://schemas.lepo.co/wpfui/2022/xaml"
+    Title="DashboardPage"
+    d:DesignHeight="450"
+    d:DesignWidth="800"
+    ui:Design.Background="{DynamicResource ApplicationBackgroundBrush}"
+    ui:Design.Foreground="{DynamicResource TextFillColorPrimaryBrush}"
+    Foreground="{DynamicResource TextFillColorPrimaryBrush}"
+    mc:Ignorable="d">
+
+    <Grid Margin="42" VerticalAlignment="Top">
+        <Grid.ColumnDefinitions>
+            <ColumnDefinition Width="Auto" />
+            <ColumnDefinition Width="Auto" />
+        </Grid.ColumnDefinitions>
+
+        <ui:Button
+            Grid.Column="0"
+            Click="OnBaseButtonClick"
+            Content="Click me!"
+            Icon="{ui:SymbolIcon Fluent24}" />
+        <TextBlock
+            x:Name="CounterTextBlock"
+            Grid.Column="1"
+            Margin="12,0,0,0"
+            VerticalAlignment="Center" />
+    </Grid>
+</Page>

samples/Wpf.Ui.Demo.SetResources.Simple/Views/Pages/DashboardPage.xaml.cs

@@ -0,0 +1,34 @@
+// This Source Code Form is subject to the terms of the MIT License.
+// If a copy of the MIT was not distributed with this file, You can obtain one at https://opensource.org/licenses/MIT.
+// Copyright (C) Leszek Pomianowski and WPF UI Contributors.
+// All Rights Reserved.
+
+using System.Windows;
+
+namespace Wpf.Ui.Demo.SetResources.Simple.Views.Pages;
+
+/// <summary>
+/// Interaction logic for DashboardPage.xaml
+/// </summary>
+public partial class DashboardPage
+{
+    private int _counter = 0;
+
+    public DashboardPage()
+    {
+        App.ApplyTheme(this);
+
+        DataContext = this;
+        InitializeComponent();
+
+        CounterTextBlock.SetCurrentValue(System.Windows.Controls.TextBlock.TextProperty, _counter.ToString());
+    }
+
+    private void OnBaseButtonClick(object sender, RoutedEventArgs e)
+    {
+        CounterTextBlock.SetCurrentValue(
+            System.Windows.Controls.TextBlock.TextProperty,
+            (++_counter).ToString()
+        );
+    }
+}

samples/Wpf.Ui.Demo.SetResources.Simple/Views/Pages/DataPage.xaml

@@ -0,0 +1,40 @@
+<Page
+    x:Class="Wpf.Ui.Demo.SetResources.Simple.Views.Pages.DataPage"
+    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+    xmlns:ui="http://schemas.lepo.co/wpfui/2022/xaml"
+    xmlns:models="clr-namespace:Wpf.Ui.Demo.SetResources.Simple.Models"
+    Title="DataPage"
+    d:DesignHeight="450"
+    d:DesignWidth="800"
+    ui:Design.Background="{DynamicResource ApplicationBackgroundBrush}"
+    ui:Design.Foreground="{DynamicResource TextFillColorPrimaryBrush}"
+    Foreground="{DynamicResource TextFillColorPrimaryBrush}"
+    ScrollViewer.CanContentScroll="False"
+    mc:Ignorable="d">
+
+    <Grid Margin="42">
+        <ui:VirtualizingItemsControl
+            x:Name="ColorsItemsControl"
+            Foreground="{DynamicResource TextFillColorSecondaryBrush}"
+            VirtualizingPanel.CacheLengthUnit="Item">
+            <ItemsControl.ItemTemplate>
+                <DataTemplate DataType="{x:Type models:DataColor}">
+                    <ui:Button
+                        Width="80"
+                        Height="80"
+                        Margin="2"
+                        Padding="0"
+                        HorizontalAlignment="Stretch"
+                        VerticalAlignment="Stretch"
+                        Appearance="Secondary"
+                        Background="{Binding Color, Mode=OneWay}"
+                        FontSize="25"
+                        Icon="Fluent24" />
+                </DataTemplate>
+            </ItemsControl.ItemTemplate>
+        </ui:VirtualizingItemsControl>
+    </Grid>
+</Page>