adjust baseCommand to accept new source generation

Author: DerekGooding

SimpleViewModel/BaseClasses/BaseCommand.cs

@@ -1,4 +1,5 @@
-using System.Windows.Input;
+using System.Windows;
+using System.Windows.Input;
 
 namespace SimpleViewModel.BaseClasses;
 
@@ -16,6 +17,18 @@ public event EventHandler? CanExecuteChanged
         remove => CommandManager.RequerySuggested -= value;
     }
 
+    /// <summary>
+    /// Forces WPF to re-evaluate <see cref="CanExecute"/> for all commands.
+    /// Safe to call from any thread — marshals to the UI dispatcher if needed.
+    /// </summary>
+    public void RaiseCanExecuteChanged()
+    {
+        if (Application.Current?.Dispatcher.CheckAccess() == true)
+            CommandManager.InvalidateRequerySuggested();
+        else
+            Application.Current?.Dispatcher.Invoke(CommandManager.InvalidateRequerySuggested);
+    }
+
     /// <summary>
     /// Determines whether the command can execute in its current state.
     /// </summary>

SimpleViewModel/SimpleViewModel.csproj

@@ -9,7 +9,7 @@
 
 	  <GeneratePackageOnBuild>true</GeneratePackageOnBuild>
 	  <PackageId>SimpleViewModel</PackageId>
-	  <Version>0.9.8.3</Version>
+	  <Version>0.9.8.4</Version>
 	  <Authors>Derek Gooding</Authors>
 	  <Company>Derek Gooding</Company>
 	  <Description>