--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Chronosv2/source/Presentation/Windows/Helpers/PasswordBoxHelper.cs	Tue Feb 21 17:25:44 2012 +0700
@@ -0,0 +1,99 @@
+using System.Windows;
+using System.Windows.Controls;
+
+namespace Chronos.Presentation.Windows.Helpers
+{
+    /// <summary>
+    /// This class adds binding capabilities to the standard WPF PasswordBox.
+    /// </summary>
+    /// <remarks>
+    /// http://www.codeproject.com/Articles/37167/Binding-Passwords.aspx
+    /// </remarks>
+    public static class PasswordBoxHelper
+    {
+        #region · Static Members ·
+
+        private static bool IsUpdating = false;
+
+        #endregion
+
+        #region · Attached Properties ·
+
+        /// <summary>
+        /// BoundPassword Attached Dependency Property
+        /// </summary>
+        public static readonly DependencyProperty BoundPasswordProperty =
+            DependencyProperty.RegisterAttached("BoundPassword",
+                typeof(string),
+                typeof(PasswordBoxHelper),
+                new FrameworkPropertyMetadata(string.Empty, OnBoundPasswordChanged));
+
+        #endregion
+
+        #region · Attached Property Get/Set Methods ·
+
+        /// <summary>
+        /// Gets the BoundPassword property.
+        /// </summary>
+        public static string GetBoundPassword(DependencyObject d)
+        {
+            return (string)d.GetValue(BoundPasswordProperty);
+        }
+
+        /// <summary>
+        /// Sets the BoundPassword property.
+        /// </summary>
+        public static void SetBoundPassword(DependencyObject d, string value)
+        {
+            d.SetValue(BoundPasswordProperty, value);
+        }
+
+        #endregion
+
+        #region · Attached Properties Callbacks ·
+
+        /// <summary>
+        /// Handles changes to the BoundPassword property.
+        /// </summary>
+        private static void OnBoundPasswordChanged(
+            DependencyObject d,
+            DependencyPropertyChangedEventArgs e)
+        {
+            PasswordBox password = d as PasswordBox;
+
+            if (password != null)
+            {
+                // Disconnect the handler while we're updating.
+                password.PasswordChanged -= PasswordChanged;
+            }
+
+            if (e.NewValue != null)
+            {
+                if (!IsUpdating)
+                {
+                    password.Password = e.NewValue.ToString();
+                }
+            }
+            else
+            {
+                password.Password = string.Empty;
+            }
+
+            // Now, reconnect the handler.
+            password.PasswordChanged += new RoutedEventHandler(PasswordChanged);
+        }
+
+        /// <summary>
+        /// Handles the password change event.
+        /// </summary>
+        static void PasswordChanged(object sender, RoutedEventArgs e)
+        {
+            PasswordBox password = sender as PasswordBox;
+            IsUpdating = true;
+            SetBoundPassword(password, password.Password);
+            IsUpdating = false;
+        }
+
+        #endregion
+    }
+}