Merge pull request #2 from OpenRakis/copilot/fix-lost-focus-crash

Fix AmbiguousMatchException in DataGrid_LostFocus on Avalonia 12+

Author: maximilien-noal

src/Spice86.DataGrid/Avalonia.Controls.DataGrid/Utils/AvaloniaInternalCompatibilityHelper.cs

@@ -22,7 +22,16 @@ public static Visual GetFocusedElement(InputElement inputElement)
                 return null;
             }
 
-            MethodInfo getFocusedElementMethod = focusManager.GetType().GetMethod("GetFocusedElement", BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic);
+            // Use the overload that takes an explicit Type[] of parameters to disambiguate
+            // between multiple GetFocusedElement overloads exposed by newer Avalonia versions
+            // (Avalonia 12+ adds a GetFocusedElement(...) overload, which makes the lookup
+            // by name alone throw AmbiguousMatchException).
+            MethodInfo getFocusedElementMethod = focusManager.GetType().GetMethod(
+                "GetFocusedElement",
+                BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic,
+                binder: null,
+                types: Type.EmptyTypes,
+                modifiers: null);
             if (getFocusedElementMethod != null)
             {
                 return getFocusedElementMethod.Invoke(focusManager, null) as Visual;

src/Spice86.DataGrid/Directory.Build.props

@@ -9,7 +9,7 @@
     <ManagePackageVersionsCentrally>true</ManagePackageVersionsCentrally>
   </PropertyGroup>
   <PropertyGroup>
-    <Version>0.1.0</Version>
+    <Version>0.1.1</Version>
     <Authors>Spice86 contributors</Authors>
     <Description>Avalonia DataGrid and Semi DataGrid theme packaged for Spice86.</Description>
     <PackageProjectUrl>https://github.com/OpenRakis/Spice86.DataGrid</PackageProjectUrl>