Only allow to edit System vars if running elevated

src/modules/EnvironmentVariables/EnvironmentVariables/EnvironmentVariablesXAML/Views/MainPage.xaml

@@ -5,6 +5,7 @@
     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
     xmlns:controls="using:CommunityToolkit.WinUI.UI.Controls"
     xmlns:converters="using:EnvironmentVariables.Converters"
+    xmlns:converters1="using:CommunityToolkit.WinUI.UI.Converters"
     xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
     xmlns:i="using:Microsoft.Xaml.Interactivity"
     xmlns:ic="using:Microsoft.Xaml.Interactions.Core"
@@ -20,7 +21,7 @@
                 Click="EditVariable_Click"
                 CommandParameter="{x:Bind (models:Variable)}"
                 Header="{x:Bind Name, Mode=TwoWay}"
-                IsClickEnabled="True">
+                IsClickEnabled="{x:Bind Editable, Mode=OneWay}">
                 <TextBlock
                     Foreground="{ThemeResource TextFillColorSecondaryBrush}"
                     IsTextSelectionEnabled="True"
@@ -29,6 +30,11 @@
         </DataTemplate>
 
         <converters:VariableTypeToGlyphConverter x:Key="VariableTypeToGlyphConverter" />
+        <converters1:BoolToVisibilityConverter
+            x:Key="BoolToInvertedVisibilityConverter"
+            FalseValue="Visible"
+            TrueValue="Collapsed" />
+        <converters1:BoolNegationConverter x:Key="BoolNegationConverter" />
     </Page.Resources>
     <i:Interaction.Behaviors>
         <ic:EventTriggerBehavior EventName="Loaded">
@@ -110,6 +116,12 @@
                         HeaderIcon="{ui:FontIcon Glyph=&#xE77B;}"
                         ItemTemplate="{StaticResource VariableTemplate}"
                         ItemsSource="{x:Bind ViewModel.UserDefaultSet.Variables, Mode=OneWay}" />
+                    <InfoBar
+                        x:Uid="EditSystemDefaultSetInfoBar"
+                        Margin="0,8,0,0"
+                        IsOpen="{x:Bind ViewModel.IsElevated, Mode=OneWay, Converter={StaticResource BoolNegationConverter}}"
+                        Severity="Informational"
+                        Visibility="{x:Bind ViewModel.IsElevated, Mode=OneWay, Converter={StaticResource BoolToInvertedVisibilityConverter}}" />
                     <labs:SettingsExpander
                         Margin="0,0,0,4"
                         Header="{x:Bind ViewModel.SystemDefaultSet.Name}"

src/modules/EnvironmentVariables/EnvironmentVariables/Models/Variable.cs

@@ -17,6 +17,8 @@ namespace EnvironmentVariables.Models
         [ObservableProperty]
         private string _values;
 
+        public bool Editable { get; private set; }
+
         public VariablesSetType ParentType { get; set; }
 
         public List<string> ValuesList { get; set; }
@@ -30,6 +32,7 @@ namespace EnvironmentVariables.Models
             Name = name;
             Values = values;
             ParentType = parentType;
+            Editable = ParentType == VariablesSetType.User || (ParentType == VariablesSetType.System && App.GetService<IElevationHelper>().IsElevated);
 
             var splitValues = Values.Split(';');
             if (splitValues.Length > 0)

src/modules/EnvironmentVariables/EnvironmentVariables/Strings/en-us/Resources.resw

@@ -203,4 +203,7 @@
   <data name="NewProfileVariablesListViewHeader.Text" xml:space="preserve">
     <value>Variables</value>
   </data>
+  <data name="EditSystemDefaultSetInfoBar.Title" xml:space="preserve">
+    <value>You need to run as administrator to edit System environment variables</value>
+  </data>
 </root>

src/modules/EnvironmentVariables/EnvironmentVariables/ViewModels/MainViewModel.cs

@@ -32,11 +32,16 @@ namespace EnvironmentVariables.ViewModels
         [ObservableProperty]
         private ObservableCollection<Variable> _appliedVariables = new ObservableCollection<Variable>();
 
+        [ObservableProperty]
+        private bool _isElevated;
+
         public ProfileVariablesSet AppliedProfile { get; set; }
 
         public MainViewModel(IEnvironmentVariablesService environmentVariablesService)
         {
             _environmentVariablesService = environmentVariablesService;
+            var isElevated = App.GetService<IElevationHelper>().IsElevated;
+            IsElevated = isElevated;
         }
 
         [RelayCommand]