WPF реализация

src/Sms.TaskTwo.ViewModels/EnvironmentVariableRowViewModel.cs

@@ -21,6 +21,7 @@ public sealed partial class EnvironmentVariableRowViewModel : ObservableObject
         _service = service;
         _onCustomRemoved = onCustomRemoved;
         ApplySnapshot(row, suppressSave: true);
+        RefreshActualValue(_service.GetProcessValue(Field));
     }
 
     public string Field { get; }
@@ -34,6 +35,12 @@ public sealed partial class EnvironmentVariableRowViewModel : ObservableObject
     [ObservableProperty]
     private bool _useUserStore;
 
+    [ObservableProperty]
+    private string _actualValue = string.Empty;
+
+    public string ActualValueDisplay =>
+        string.IsNullOrEmpty(ActualValue) ? "<нет>" : ActualValue;
+
     [ObservableProperty]
     private string _requiredValue = string.Empty;
 
@@ -60,6 +67,7 @@ public sealed partial class EnvironmentVariableRowViewModel : ObservableObject
         if (value)
         {
             _service.SaveValue(Field, RequiredValue);
+            RefreshActualValue(_service.GetProcessValue(Field));
             return;
         }
 
@@ -74,8 +82,11 @@ public sealed partial class EnvironmentVariableRowViewModel : ObservableObject
         BeginLoad();
         RequiredValue = _service.GetDisplayValue(Field);
         EndLoad();
+        RefreshActualValue(_service.GetProcessValue(Field));
     }
 
+    partial void OnActualValueChanged(string value) => OnPropertyChanged(nameof(ActualValueDisplay));
+
     partial void OnRequiredValueChanged(string value)
     {
         if (_isLoading || !UseUserStore)
@@ -84,6 +95,7 @@ public sealed partial class EnvironmentVariableRowViewModel : ObservableObject
         }
 
         _service.SaveValue(Field, value);
+        RefreshActualValue(_service.GetProcessValue(Field));
     }
 
     public event EventHandler? RowAppearanceChanged;
@@ -105,6 +117,11 @@ public sealed partial class EnvironmentVariableRowViewModel : ObservableObject
         }
     }
 
+    public void RefreshActualValue(string? processValue)
+    {
+        ActualValue = processValue ?? string.Empty;
+    }
+
     public void BeginLoad() => _isLoading = true;
 
     public void EndLoad() => _isLoading = false;