fix: Fix x:Bind with empty path crashing when x:Load exists in the …

…same page

src/SourceGenerators/Uno.UI.SourceGenerators.Tests/XamlCodeGeneratorTests/Given_Binding.cs

@@ -446,4 +446,80 @@ public MainPage()
 
 		await test.RunAsync();
 	}
+
+	[TestMethod]
+	public async Task TestPathlessXBindReferencesXLoadedElement()
+	{
+		var xamlFile = new XamlFile("MainPage.xaml", """
+			<Page
+				x:Class="TestRepro.MainPage"
+				xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+				xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+				xmlns:local="using:TestRepro"
+				xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+				xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+				mc:Ignorable="d">
+				<Page.Resources>
+					<local:NullableBoolConverter x:Key="NullableBoolConverter" />
+				</Page.Resources>
+				<StackPanel>
+					<ToggleButton x:Name="LoadElement" x:FieldModifier="public" x:Load="{x:Bind ToggleLoad.IsChecked, Mode=OneWay, Converter={StaticResource NullableBoolConverter}}">Loaded via x:Load and toggle enable for buttons</ToggleButton>
+					<Button x:Name="button1" Tag="{x:Bind}" x:FieldModifier="public">Button1</Button>
+					<ToggleButton x:Name="ToggleLoad" IsChecked="False" x:FieldModifier="public">Toggle Load</ToggleButton>
+				</StackPanel>
+			</Page>
+			""");
+
+		var test = new Verify.Test(xamlFile)
+		{
+			TestState =
+			{
+				Sources =
+				{
+					"""
+					using System;
+					using Microsoft.UI.Xaml.Controls;
+					using Microsoft.UI.Xaml.Data;
+
+					namespace TestRepro
+					{
+						internal class NullableBoolConverter : IValueConverter
+						{
+							public object Convert(object value, Type targetType, object parameter, string language)
+							{
+								if (value == null || value is bool b && b == false)
+								{
+									return false;
+								}
+
+								return true;
+							}
+
+							public object ConvertBack(object value, Type targetType, object parameter, string language)
+							{
+								if (value == null || value is bool b && b == false)
+								{
+									return false;
+								}
+
+								return true;
+							}
+						}
+
+						public sealed partial class MainPage : Page
+						{
+							public MainPage()
+							{
+								this.InitializeComponent();
+							}
+						}
+					}
+
+					"""
+				}
+			}
+		}.AddGeneratedSources();
+
+		await test.RunAsync();
+	}
 }

src/SourceGenerators/Uno.UI.SourceGenerators.Tests/XamlCodeGeneratorTests/Out/TPXBRXLE/XamlCodeGenerator_GlobalStaticResources.cs

@@ -0,0 +1,55 @@
+// <autogenerated />
+namespace MyProject
+{
+	/// <summary>
+	/// Contains all the static resources defined for the application
+	/// </summary>
+	public sealed partial class GlobalStaticResources
+	{
+		static bool _initialized;
+		private static bool _stylesRegistered;
+		private static bool _dictionariesRegistered;
+		internal static global::Uno.UI.Xaml.XamlParseContext __ParseContext_ { get; } = new global::Uno.UI.Xaml.XamlParseContext()
+		{
+			AssemblyName = "TestProject",
+		}
+		;
+
+		static GlobalStaticResources()
+		{
+			Initialize();
+		}
+		public static void Initialize()
+		{
+			if (!_initialized)
+			{
+				_initialized = true;
+				global::Uno.UI.GlobalStaticResources.Initialize();
+				global::Uno.UI.GlobalStaticResources.RegisterDefaultStyles();
+				global::Uno.UI.GlobalStaticResources.RegisterResourceDictionariesBySource();
+			}
+		}
+		public static void RegisterDefaultStyles()
+		{
+			if(!_stylesRegistered)
+			{
+				_stylesRegistered = true;
+				RegisterDefaultStyles_MainPage_d6cd66944958ced0c513e0a04797b51d();
+			}
+		}
+		// Register ResourceDictionaries using ms-appx:/// syntax, this is called for external resources
+		public static void RegisterResourceDictionariesBySource()
+		{
+			if(!_dictionariesRegistered)
+			{
+				_dictionariesRegistered = true;
+			}
+		}
+		// Register ResourceDictionaries using ms-resource:/// syntax, this is called for local resources
+		internal static void RegisterResourceDictionariesBySourceLocal()
+		{
+		}
+		static partial void RegisterDefaultStyles_MainPage_d6cd66944958ced0c513e0a04797b51d();
+
+	}
+}

src/SourceGenerators/Uno.UI.SourceGenerators.Tests/XamlCodeGeneratorTests/Out/TPXBRXLE/XamlCodeGenerator_LocalizationResources.cs

@@ -0,0 +1,2 @@
+// <auto-generated />
+[assembly: global::System.Reflection.AssemblyMetadata("UnoHasLocalizationResources", "False")]