LuaInstaller.EndUsers: only allow native builds to be selected on radiobuttons

Author: luau-project

LuaInstaller/MainWindow.xaml

@@ -73,9 +73,9 @@
 
             <Label Grid.Column="0" Grid.Row="0" Content="Platform"/>
             <StackPanel Grid.Column="1" Grid.Row="0" Orientation="Horizontal">
-                <RadioButton VerticalContentAlignment="Center" Content="x86" Margin="0,0,5,0" IsChecked="{Binding Platform, Converter={StaticResource archConverter}, ConverterParameter=x86}"/>
-                <RadioButton VerticalContentAlignment="Center" Content="x64" Margin="5,0,0,0" IsChecked="{Binding Platform, Converter={StaticResource archConverter}, ConverterParameter=x64}"/>
-                <RadioButton VerticalContentAlignment="Center" Content="ARM64" Margin="5,0,0,0" IsChecked="{Binding Platform, Converter={StaticResource archConverter}, ConverterParameter=ARM64}"/>
+                <RadioButton VerticalContentAlignment="Center" Content="x86" Margin="0,0,5,0" IsEnabled="{Binding Isx86x64}" IsChecked="{Binding Platform, Converter={StaticResource archConverter}, ConverterParameter=x86}"/>
+                <RadioButton VerticalContentAlignment="Center" Content="x64" Margin="5,0,0,0" IsEnabled="{Binding Isx86x64}" IsChecked="{Binding Platform, Converter={StaticResource archConverter}, ConverterParameter=x64}"/>
+                <RadioButton VerticalContentAlignment="Center" Content="ARM64" Margin="5,0,0,0" IsEnabled="{Binding IsArm64}" IsChecked="{Binding Platform, Converter={StaticResource archConverter}, ConverterParameter=ARM64}"/>
             </StackPanel>
 
             <Label Grid.Column="0" Grid.Row="2" Content="Installation Directory"/>

LuaInstaller/ViewModels/LuaInstallerViewModel.cs

@@ -31,6 +31,8 @@ public class LuaInstallerViewModel : INotifyPropertyChanged
         private string status;
         private InstallationProgress progress;
 
+        private bool isArm64;
+
         public Architecture Platform
         {
             get
@@ -276,13 +278,32 @@ public string InstallerVersion
             }
         }
 
+        public bool IsArm64
+        {
+            get
+            {
+                return isArm64;
+            }
+        }
+
+        public bool Isx86x64
+        {
+            get
+            {
+                return !isArm64;
+            }
+        }
+
         public LuaInstallerViewModel()
         {
             components = new InstalledComponents();
 
             refreshCommand = new RefreshCommand();
             installCommand = new InstallCommand();
 
+            platform = ArchitectureSelector.Instance.Architecture;
+            isArm64 = platform == Architecture.ARM64;
+
             status = string.Empty;
             progress = InstallationProgress.None;
             setEnvironmentVariables = false;
@@ -302,8 +323,6 @@ public LuaInstallerViewModel()
                 selectedLuaVersion = luaVersions[0];
             }
 
-            platform = ArchitectureSelector.Instance.Architecture;
-
             IVisualStudioEnumeration vsEnum = components.AllVisualStudioByArch(platform);
 
             visualStudioVersions = new ObservableCollection<VisualStudio>(