|
19
|
1
|
|
|
2 using System.Windows;
|
|
|
3 using System.Windows.Controls;
|
|
|
4
|
|
|
5 namespace MetroWpf.Xaml.Controls
|
|
|
6 {
|
|
|
7 /// <summary>
|
|
|
8 /// This class adds binding capabilities to the standard WPF PasswordBox.
|
|
|
9 /// </summary>
|
|
|
10 /// <remarks>
|
|
|
11 /// http://www.codeproject.com/Articles/37167/Binding-Passwords.aspx
|
|
|
12 /// </remarks>
|
|
|
13 public static class PasswordBoxHelper
|
|
|
14 {
|
|
|
15 #region · Static Members ·
|
|
|
16
|
|
|
17 private static bool IsUpdating = false;
|
|
|
18
|
|
|
19 #endregion
|
|
|
20
|
|
|
21 #region · Attached Properties ·
|
|
|
22
|
|
|
23 /// <summary>
|
|
|
24 /// BoundPassword Attached Dependency Property
|
|
|
25 /// </summary>
|
|
|
26 public static readonly DependencyProperty BoundPasswordProperty =
|
|
|
27 DependencyProperty.RegisterAttached("BoundPassword",
|
|
|
28 typeof(string),
|
|
|
29 typeof(PasswordBoxHelper),
|
|
|
30 new FrameworkPropertyMetadata(string.Empty, OnBoundPasswordChanged));
|
|
|
31
|
|
|
32 #endregion
|
|
|
33
|
|
|
34 #region · Attached Property Get/Set Methods ·
|
|
|
35
|
|
|
36 /// <summary>
|
|
|
37 /// Gets the BoundPassword property.
|
|
|
38 /// </summary>
|
|
|
39 public static string GetBoundPassword(DependencyObject d)
|
|
|
40 {
|
|
|
41 return (string)d.GetValue(BoundPasswordProperty);
|
|
|
42 }
|
|
|
43
|
|
|
44 /// <summary>
|
|
|
45 /// Sets the BoundPassword property.
|
|
|
46 /// </summary>
|
|
|
47 public static void SetBoundPassword(DependencyObject d, string value)
|
|
|
48 {
|
|
|
49 d.SetValue(BoundPasswordProperty, value);
|
|
|
50 }
|
|
|
51
|
|
|
52 #endregion
|
|
|
53
|
|
|
54 #region · Attached Properties Callbacks ·
|
|
|
55
|
|
|
56 /// <summary>
|
|
|
57 /// Handles changes to the BoundPassword property.
|
|
|
58 /// </summary>
|
|
|
59 private static void OnBoundPasswordChanged(
|
|
|
60 DependencyObject d,
|
|
|
61 DependencyPropertyChangedEventArgs e)
|
|
|
62 {
|
|
|
63 PasswordBox password = d as PasswordBox;
|
|
|
64
|
|
|
65 if (password != null)
|
|
|
66 {
|
|
|
67 // Disconnect the handler while we're updating.
|
|
|
68 password.PasswordChanged -= PasswordChanged;
|
|
|
69 }
|
|
|
70
|
|
|
71 if (e.NewValue != null)
|
|
|
72 {
|
|
|
73 if (!IsUpdating)
|
|
|
74 {
|
|
|
75 password.Password = e.NewValue.ToString();
|
|
|
76 }
|
|
|
77 }
|
|
|
78 else
|
|
|
79 {
|
|
|
80 password.Password = string.Empty;
|
|
|
81 }
|
|
|
82
|
|
|
83 // Now, reconnect the handler.
|
|
|
84 password.PasswordChanged += new RoutedEventHandler(PasswordChanged);
|
|
|
85 }
|
|
|
86
|
|
|
87 /// <summary>
|
|
|
88 /// Handles the password change event.
|
|
|
89 /// </summary>
|
|
|
90 static void PasswordChanged(object sender, RoutedEventArgs e)
|
|
|
91 {
|
|
|
92 PasswordBox password = sender as PasswordBox;
|
|
|
93 IsUpdating = true;
|
|
|
94 SetBoundPassword(password, password.Password);
|
|
|
95 IsUpdating = false;
|
|
|
96 }
|
|
|
97
|
|
|
98 #endregion
|
|
|
99 }
|
|
|
100 }
|
