2 files changed, 18 insertions, 1 deletions
diff --git a/MediaBrowser.Model/Extensions/IHasPropertyChangedEvent.cs b/MediaBrowser.Model/Extensions/IHasPropertyChangedEvent.cs
new file mode 100644
index 000000000..c87550620
--- /dev/null
+++ b/MediaBrowser.Model/Extensions/IHasPropertyChangedEvent.cs
@@ -0,0 +1,8 @@
+using System.ComponentModel;
+
+namespace MediaBrowser.Model.Extensions
+{
+    public interface IHasPropertyChangedEvent : INotifyPropertyChanged
+    {
+    }
+}
diff --git a/MediaBrowser.Model/Extensions/ListHelper.cs b/MediaBrowser.Model/Extensions/ListHelper.cs
index 6c5d471c0..d929866bd 100644
--- a/MediaBrowser.Model/Extensions/ListHelper.cs
+++ b/MediaBrowser.Model/Extensions/ListHelper.cs
@@ -6,7 +6,16 @@ namespace MediaBrowser.Model.Extensions
 {
     public static class ListHelper
     {
-        public static bool ContainsIgnoreCase(IEnumerable<string> list, string value)
+        public static bool ContainsIgnoreCase(List<string> list, string value)
+        {
+            if (value == null)
+            {
+                throw new ArgumentNullException("value");
+            }
+
+            return list.Contains(value, StringComparer.OrdinalIgnoreCase);
+        }
+        public static bool ContainsIgnoreCase(string[] list, string value)
         {
             if (value == null)
             {