Some improvements to formatting options fix.

src/AddIns/BackendBindings/CSharpBinding/Project/Src/FormattingStrategy/CSharpFormattingOptionsContainer.cs

@@ -127,7 +127,6 @@ namespace CSharpBinding.FormattingStrategy
 			if ((e.PropertyName == "Parent") || (e.PropertyName == null)) {
 				// All properties might have changed -> update everything
 				cachedOptions = CreateCachedOptions();
-//				OnPropertyChanged(e.PropertyName);
 			} else {
 				// Some other property has changed, check if we have our own value for it
 				if (!activeOptions.Contains(e.PropertyName)) {
@@ -136,7 +135,6 @@ namespace CSharpBinding.FormattingStrategy
 					if (propertyInfo != null) {
 						var val = GetEffectiveOption(e.PropertyName);
 						propertyInfo.SetValue(cachedOptions, val);
-//						OnPropertyChanged(e.PropertyName);
 					}
 				}
 			}

src/AddIns/BackendBindings/CSharpBinding/Project/Src/OptionPanels/CSharpFormattingOptionPanel.xaml.cs

@@ -82,17 +82,19 @@ namespace CSharpBinding.OptionPanels
 		{
 			base.LoadOptions();
 			formattingEditor.OptionsContainer = persistenceHelper.StartEditing();
-			formattingEditor.OptionsContainer.PropertyChanged += (sender, e) => isDirty = true;
+			formattingEditor.OptionsContainer.PropertyChanged += ContainerPropertyChanged;
 		}
 
-		public override bool SaveOptions()
+		void ContainerPropertyChanged(object sender, System.ComponentModel.PropertyChangedEventArgs e)
 		{
-			if (isDirty) {
-				return persistenceHelper.Save() && base.SaveOptions();
-			} else {
-				// Nothing has been changed here, return without action
-				return true;
+			isDirty = true;
 		}
+		
+		public override bool SaveOptions()
+		{
+			// Only save container, if some option really has changed
+			formattingEditor.OptionsContainer.PropertyChanged -= ContainerPropertyChanged;
+			return (!isDirty || persistenceHelper.Save()) && base.SaveOptions();
 		}
 	}
 }

src/Main/Core/Project/Src/Services/PropertyService/Properties.cs

@@ -430,7 +430,7 @@ namespace ICSharpCode.Core
 				if (result == null) {
 					result = new Properties(this);
 					dict[key] = result;
-					isNewContainer = true;
+					result.MakeDirty();
 				}
 			}
 			if (isNewContainer)