address comments

Microsoft.Toolkit.Parsers/Rss/RssHelper.cs

@@ -311,9 +311,9 @@ namespace Microsoft.Toolkit.Parsers.Rss
 
             tz = tz.ToUpper().Trim();
 
-            if (timeZones.ContainsKey(tz))
+            if (TimeZones.ContainsKey(tz))
             {
-                return timeZones[tz].First();
+                return TimeZones[tz].First();
             }
 
             return null;
@@ -374,7 +374,7 @@ namespace Microsoft.Toolkit.Parsers.Rss
         /// <summary>
         /// Dictionary of timezones.
         /// </summary>
-        private static readonly Dictionary<string, string[]> timeZones = new Dictionary<string, string[]>
+        private static readonly Dictionary<string, string[]> TimeZones = new Dictionary<string, string[]>
         {
             { "ACDT", new[] { "-1030", "Australian Central Daylight" } },
             { "ACST", new[] { "-0930", "Australian Central Standard" } },

Microsoft.Toolkit.Uwp.UI.Controls.DataGrid/DataGrid/DataGrid.cs

@@ -3207,7 +3207,7 @@ namespace Microsoft.Toolkit.Uwp.UI.Controls
                     rowGroupInfo = RowGroupInfoFromCollectionViewGroup(collectionViewGroup);
                     if (rowGroupInfo == null)
                     {
-                        Debug.Assert(false, "Expected non-null rowGroupInfo.");
+                        Debug.Fail("Expected non-null rowGroupInfo.");
                         return;
                     }
 

Microsoft.Toolkit.Uwp.UI.Controls.DataGrid/DataGrid/DataGridCellsPresenter.cs

@@ -274,6 +274,9 @@ namespace Microsoft.Toolkit.Uwp.UI.Controls.Primitives
             // then we will resize all the columns to fit the available space.
             if (this.OwningGrid.UsesStarSizing && !this.OwningGrid.AutoSizingColumns)
             {
+                double adjustment = this.OwningGrid.CellsWidth - totalDisplayWidth;
+                this.OwningGrid.AdjustColumnWidths(0, adjustment, false);
+
                 // Since we didn't know the final widths of the columns until we resized,
                 // we waited until now to measure each cell
                 double leftEdge = 0;

Microsoft.Toolkit.Uwp.UI.Controls.DataGrid/DataGrid/DataGridColumnHeadersPresenter.cs

@@ -359,6 +359,9 @@ namespace Microsoft.Toolkit.Uwp.UI.Controls.Primitives
             // then we will resize all the columns to fit the available space.
             if (this.OwningGrid.UsesStarSizing && !this.OwningGrid.AutoSizingColumns)
             {
+                double adjustment = double.IsPositiveInfinity(availableSize.Width) ? this.OwningGrid.CellsWidth : availableSize.Width - totalDisplayWidth;
+                this.OwningGrid.AdjustColumnWidths(0, adjustment, false);
+
                 // Since we didn't know the final widths of the columns until we resized,
                 // we waited until now to measure each header
                 double leftEdge = 0;

Microsoft.Toolkit.Uwp.UI.Controls.DataGrid/DataGrid/DataGridDataConnection.cs

@@ -544,6 +544,7 @@ namespace Microsoft.Toolkit.Uwp.UI.Controls.DataGridInternals
                             // Either the property doesn't exist or it does exist but is read-only.
                             return true;
                         }
+
                         // Check if EditableAttribute is defined on the property and if it indicates uneditable
                         var editableAttribute = propertyInfo.GetCustomAttributes().OfType<EditableAttribute>().FirstOrDefault();
                         if (editableAttribute != null && !editableAttribute.AllowEdit)

Microsoft.Toolkit.Uwp.UI.Controls/ImageCropper/ImageCropper.Events.cs

@@ -23,12 +23,14 @@ namespace Microsoft.Toolkit.Uwp.UI.Controls
             if (e.Key == VirtualKey.Left)
             {
                 diffPos.X--;
-                if (Window.Current.CoreWindow.GetAsyncKeyState(VirtualKey.Up) == CoreVirtualKeyStates.Down)
+                var upKeyState = Window.Current.CoreWindow.GetAsyncKeyState(VirtualKey.Up);
+                var downKeyState = Window.Current.CoreWindow.GetAsyncKeyState(VirtualKey.Down);
+                if (upKeyState == CoreVirtualKeyStates.Down)
                 {
                     diffPos.Y--;
                 }
 
-                if (Window.Current.CoreWindow.GetAsyncKeyState(VirtualKey.Down) == CoreVirtualKeyStates.Down)
+                if (downKeyState == CoreVirtualKeyStates.Down)
                 {
                     diffPos.Y++;
                 }

Microsoft.Toolkit.Uwp/Extensions/StringExtensions.cs

@@ -11,6 +11,8 @@ namespace Microsoft.Toolkit.Uwp.Extensions
     /// </summary>
     public static class StringExtensions
     {
+        private static readonly ResourceLoader IndependentLoader = ResourceLoader.GetForViewIndependentUse();
+
         /// <summary>
         /// Retrieves the provided resource for the current view context.
         /// </summary>
@@ -25,7 +27,7 @@ namespace Microsoft.Toolkit.Uwp.Extensions
         /// <param name="resourceKey">Resource key to retrieve.</param>
         /// <returns>string value for given resource or empty string if not found.</returns>
         public static string GetLocalized(this string resourceKey)
-            => ResourceLoader.GetForViewIndependentUse().GetString(resourceKey);
+            => IndependentLoader.GetString(resourceKey);
 
         /// <summary>
         /// Retrieves the provided resource for the given key for use independent of the UI thread.