#Reading wpf passwordbox password#
Return Marshal. MaterialDesignInXamlToolkit/MaterialDesignThemes.Wpf/Themes/ Go to file Cannot retrieve contributors at this time 991 lines (964 sloc) 62. In WPF circles, the PasswordBox control has generated quite a bit of discussion. PasswordBox You can enter the password characters as an input by adding the PasswordBox in the SfTextInputLayout. UnmanagedString = Marshal.SecureStringToGlobalAllocUnicode(securePassword) Private string ConvertToUnsecureString( SecureString securePassword)
#Reading wpf passwordbox how to#
A nice explanation of them can be found in How to properly convert SecureString to String by Fabio Pintos. There are some pitfalls of converting a SecureString. The SecureString needs to be converted to string to validate the entered password. PasswordInVM = ConvertToUnsecureString(secureString) Var secureString = passwordContainer.Password Var passwordContainer = parameter as IHavePassword In WPF there is an extra control for that: PasswordBox. From that we can easily obtain the secure password. the textbox in Windows Forms used to have a PasswordChar property. The view is casted to defined interface IHavePassword. In the ViewModel the LoginCommand is linked to the Login method. Therefore the Command and the CommandParameter properties are set. It is always recommended to use System.IO.Path.Combine () instead of adding up the path by using string concatenation. In the XAML part of the View the click event of the login button is send by using the Rela圜ommand pattern that builds on WPF Commanding. In this way you can remove the ConvertToUnsecureString () method at all and you dont have to read the decrypted value of the password. Public partial class LoginView : UserControl, IHavePassword The Property Password in code-behind returns the SecurePassword of the PasswordBox.
The View implements the IHavePassword interface. To access the password in the ViewModel in a secure way some work have to be done.Īt first we define an interface that contains just the SecureString Password as property. you can still read the password from Code-behind, but for MVVM. Therefore the Password and SecurePassword property of WPF PasswordBox is not a DependencyProperty and cannot used for binding. The functionality is very much the same, but we want WPF to display something else than the actual characters when typing in a password, to shield it from nosy people looking over your shoulder. One of the most frustrating issues with the WPF PasswordBox is that the Password property. Keeping cleartext passwords in memory is a security risk.
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