Caliburn.Micro support for PasswordBox?

Question

The Caliburn.Micro home page at http://caliburnmicro.com makes the below claim but I am unable to make CM work with a PasswordBox control using any variation I can think of from that example. Don't see how this would work anyway since the names are not the same case. Does anyone have a CM example that does allow me to get the value of the PasswordBox? Is there a particular version of CM required? I'm running version 1.5.2 of CM. Ideally w/o using Attached Properties but if can work with CM and the only way then fine. Please no lectures on security issues as that is not an issue in my case.

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Apply methods between your view and view model automatically with parameters and guard methods

<StackPanel>     <TextBox x:Name="Username" />     <PasswordBox x:Name="Password" />     <Button x:Name="Login" Content="Log in" /> </StackPanel> 

public bool CanLogin(string username, string password) {     return !String.IsNullOrEmpty(username) && !String.IsNullOrEmpty(password); }  public string Login(string username, string password) {     ... } 

Answer 1

Here's a much more simplified example, including a binding convention so that PasswordBox binding in Caliburn.Micro Just Works™:

public static class PasswordBoxHelper {     public static readonly DependencyProperty BoundPasswordProperty =         DependencyProperty.RegisterAttached("BoundPassword",             typeof(string),             typeof(PasswordBoxHelper),             new FrameworkPropertyMetadata(string.Empty, OnBoundPasswordChanged));      public static string GetBoundPassword(DependencyObject d)     {         var box = d as PasswordBox;         if (box != null)         {             // this funny little dance here ensures that we've hooked the             // PasswordChanged event once, and only once.             box.PasswordChanged -= PasswordChanged;             box.PasswordChanged += PasswordChanged;         }          return (string)d.GetValue(BoundPasswordProperty);     }      public static void SetBoundPassword(DependencyObject d, string value)     {         if (string.Equals(value, GetBoundPassword(d)))             return; // and this is how we prevent infinite recursion          d.SetValue(BoundPasswordProperty, value);     }      private static void OnBoundPasswordChanged(         DependencyObject d,         DependencyPropertyChangedEventArgs e)     {         var box = d as PasswordBox;          if (box == null)             return;          box.Password = GetBoundPassword(d);     }      private static void PasswordChanged(object sender, RoutedEventArgs e)     {         PasswordBox password = sender as PasswordBox;          SetBoundPassword(password, password.Password);          // set cursor past the last character in the password box         password.GetType().GetMethod("Select", BindingFlags.Instance | BindingFlags.NonPublic).Invoke(password, new object[] { password.Password.Length, 0 });      }  } 

Then, in your bootstrapper:

public sealed class Bootstrapper : BootstrapperBase {     public Bootstrapper()     {         Initialize();          ConventionManager.AddElementConvention<PasswordBox>(             PasswordBoxHelper.BoundPasswordProperty,             "Password",             "PasswordChanged");     }      // other bootstrapper stuff here }