From 7b1a1f86af00b7acbeae45aec0be6d7c4f1cc0d0 Mon Sep 17 00:00:00 2001
From: Aaronontheweb <aaron@aaronstannard.com>
Date: Tue, 11 Jan 2011 00:08:47 -0800
Subject: [PATCH] Added link to Util functions in WP7 - added a function for
 checking time of last logical write to file (Silverlight only.)

---
 .../IsolatedStorageExtensions.Mobile.csproj   |  3 +++
 .../IsolatedStorageHelper.Read.cs             | 21 +++++++++++++++++++
 2 files changed, 24 insertions(+)

diff --git a/IsolatedStorageExtensions.Mobile/IsolatedStorageExtensions.Mobile.csproj b/IsolatedStorageExtensions.Mobile/IsolatedStorageExtensions.Mobile.csproj
index 30f44c2..8b12dc1 100644
--- a/IsolatedStorageExtensions.Mobile/IsolatedStorageExtensions.Mobile.csproj
+++ b/IsolatedStorageExtensions.Mobile/IsolatedStorageExtensions.Mobile.csproj
@@ -61,6 +61,9 @@
     <Compile Include="..\IsolatedStorageExtensions\IsolatedStorageHelper.Read.Xml.cs">
       <Link>IsolatedStorageHelper.Read.Xml.cs</Link>
     </Compile>
+    <Compile Include="..\IsolatedStorageExtensions\IsolatedStorageHelper.Util.cs">
+      <Link>IsolatedStorageHelper.Util.cs</Link>
+    </Compile>
     <Compile Include="..\IsolatedStorageExtensions\IsolatedStorageHelper.Write.cs">
       <Link>IsolatedStorageHelper.Write.cs</Link>
     </Compile>
diff --git a/IsolatedStorageExtensions/IsolatedStorageHelper.Read.cs b/IsolatedStorageExtensions/IsolatedStorageHelper.Read.cs
index e700501..ccd44cc 100644
--- a/IsolatedStorageExtensions/IsolatedStorageHelper.Read.cs
+++ b/IsolatedStorageExtensions/IsolatedStorageHelper.Read.cs
@@ -33,6 +33,27 @@ public static bool FileExists(string filepath, IsolatedStorageFile storage)
 
         #endregion
 
+        #region File Age 
+
+#if !WINDOWS_PHONE
+
+        public static DateTimeOffset GetFileAge(string filepath)
+        {
+            using(var storage = IsolatedStorageFile.GetUserStoreForApplication())
+            {
+                return GetFileAge(filepath, storage);
+            }
+        }
+
+        public static DateTimeOffset GetFileAge(string filepath, IsolatedStorageFile storage)
+        {
+            return storage.GetLastWriteTime(filepath);
+        }
+
+#endif
+
+        #endregion
+
         #region Stream methods
 
         public static Stream GetFileStream(string filepath, IsolatedStorageFile storage)