How to bind to a PasswordBox in MVVM

Question

I have come across a problem with binding to a PasswordBox. It seems it\'s a security risk but I am using the MVVM pattern so I wish to bypass this. I found som

Answer 1

I used this method and passed the password box, although this does violate the MVVM it was essential for me because I was using a content control with data template for my login within my shell which is a complex shell enviroment. So accessing the code behind of the shell would have been crap.

Passing the passwordbox I would think is same as accessing control from code behind as far as I know. I agree passwords, dont keep in memory etc In this implementation I don't have property for password in view model.

Button Command

Command="{Binding Path=DataContext.LoginCommand, ElementName=MyShell}" CommandParameter="{Binding ElementName=PasswordBox}"

ViewModel

private void Login(object parameter)
{
    System.Windows.Controls.PasswordBox p = (System.Windows.Controls.PasswordBox)parameter;
    MessageBox.Show(p.Password);
}