Make sure that when the directory change happens, any open posts save to the correct location.

src/managed/OpenLiveWriter.CoreServices/ApplicationEnvironment.cs

@@ -558,7 +558,7 @@ namespace OpenLiveWriter.CoreServices
         {
             get
             {
-                return PreferencesSettingsRoot.GetSubSettings("PostEditor").GetString("PostsDirectory", null); ;
+                return PreferencesSettingsRoot.GetSubSettings("PostEditor").GetString("PostsDirectory", null); 
             }
         }
 

src/managed/OpenLiveWriter.PostEditor/BlogPostEditingManager.cs

@@ -698,6 +698,7 @@ namespace OpenLiveWriter.PostEditor
         /// the current editing state
         /// </summary>
         /// <param name="editingContext">editing conext</param>
+        /// <param name="isNewPost">if set to <c>true</c> [is new post].</param>
         private void DispatchEditPost(IBlogPostEditingContext editingContext, bool isNewPost)
         {
             // calcluate whether the user has a "blank" unsaved post
@@ -754,7 +755,7 @@ namespace OpenLiveWriter.PostEditor
                         else if (saveChangesResult == DialogResult.Yes && editingContext.LocalFile.Equals(LocalFile))
                         {
                             EditPostWithPostCloseEvent(LocalFile.Load());
-                            break; ;
+                            break; 
                         }
                     }
 

src/managed/OpenLiveWriter.PostEditor/PostEditorFile.cs

@@ -206,10 +206,30 @@ namespace OpenLiveWriter.PostEditor
         private PostEditorFile(DirectoryInfo targetDirectory)
         {
             TargetDirectory = targetDirectory;
+
+            ListenForDirectoryChanges();
         }
+
+        private void ListenForDirectoryChanges()
+        {
+            var preferences = PostEditorPreferences.Instance;
+
+            preferences.PreferencesChanged -= PreferencesOnPreferencesChanged;
+            preferences.PreferencesChanged += PreferencesOnPreferencesChanged;
+        }
+
+        private void PreferencesOnPreferencesChanged(object sender, EventArgs e)
+        {
+            if (TargetDirectory?.FullName != PostEditorSettings.AutoSaveDirectory)
+            {
+                TargetDirectory = new DirectoryInfo(PostEditorPreferences.Instance.WeblogPostsFolder);
+            }
+        }
+
         private PostEditorFile(FileInfo file)
         {
             TargetFile = file;
+            ListenForDirectoryChanges();
         }
 
         // auto-create drafts and recent-posts directories

src/managed/OpenLiveWriter.PostEditor/PostEditorPreferences.cs

@@ -1,12 +1,16 @@
 // Copyright (c) .NET Foundation. All rights reserved.
 // Licensed under the MIT license. See LICENSE file in the project root for details.
 
-using OpenLiveWriter.ApplicationFramework.Preferences;
+using System;
 
 namespace OpenLiveWriter.PostEditor
 {
     public class PostEditorPreferences : OpenLiveWriter.ApplicationFramework.Preferences.Preferences
     {
+        private static PostEditorPreferences _instance;
+
+        public static PostEditorPreferences Instance => _instance ?? (_instance = new PostEditorPreferences());
+
         public PostEditorPreferences() : base("Writer")
         {
         }
@@ -74,6 +78,11 @@ namespace OpenLiveWriter.PostEditor
         }
         private string _weblogPostsFolder;
 
+        public void Changed()
+        {
+            OnPreferencesChanged(EventArgs.Empty);
+        }
+
         protected override void LoadPreferences()
         {
             PostWindowBehavior = PostEditorSettings.PostWindowBehavior;

src/managed/OpenLiveWriter.PostEditor/PostEditorPreferencesPanel.cs

@@ -76,7 +76,7 @@ namespace OpenLiveWriter.PostEditor
 
             PanelBitmap = ResourceHelper.LoadAssemblyResourceBitmap("Images.PreferencesOther.png");
 
-            _postEditorPreferences = new PostEditorPreferences();
+            _postEditorPreferences = PostEditorPreferences.Instance;
             _postEditorPreferences.PreferencesModified += _writerPreferences_PreferencesModified;
 
             switch (_postEditorPreferences.PostWindowBehavior)
@@ -160,7 +160,7 @@ namespace OpenLiveWriter.PostEditor
             Directory.CreateDirectory(destinationRecentPosts);
             Directory.CreateDirectory(destinationDrafts);
 
-            if (String.Compare(_originalFolder, _postEditorPreferences.WeblogPostsFolder, true) != 0)
+            if (string.Compare(_originalFolder, _postEditorPreferences.WeblogPostsFolder, true, CultureInfo.CurrentUICulture) != 0)
             {
                 string message = "You  have updated the default location for your blog posts, would you like to move any existing posts?";
                 string caption = "Move existing posts";
@@ -175,6 +175,8 @@ namespace OpenLiveWriter.PostEditor
 
                     MovePosts(Path.Combine(_originalFolder + @"\\Drafts\\"), destinationDrafts);
                 }
+
+                _postEditorPreferences.Changed();
             }
 
             if (_postEditorPreferences.IsModified())