![]() ValuePtr = Marshal. Private string SecureStringToString(SecureString value) & SecureStringToString(_password1) = SecureStringToString(_password2) IsEnabled = (_password1 != null || _password2 != null) RegisterCommand = new DelegateCommand( async () => await RegisterUserAsync() ) Public AppUserViewModel(IAuthenticationService _authService) public class AppUserViewModel : BindableBase Here is my XAML (removed quite a bit of elements for brevity): Īnd Here is my ViewModel (again, remove lot of code for brevity). Also, this behavior needs to be able to access the underlying ViewModel of the the element and update an INPC property in the ViewModel. It is about how to compare two object values - does not matter if they are SecureString or not - in a XAML UserControl without breaking the MVVM pattern where a behavior attached to one element needs to know about the value of another element inside the behavior. The duplicate question mentioned in his comment is about how to compare two SecureString data types. This is not a duplicate question as mentioned in a comment. I am trying to implement a compare behavior whose result will determine if the submit button should be enabled or disabled in the ViewModel. On one of my User Controls, I have two PasswordBoxes to compare the user entered passwords. If the entered password is “xaml1234”, then it will display the message "correct password" on the label.I have a WPF application and am using MVVM pattern. ![]() Here is the button click event implementation in C# in which the program compares the password. Here is the XAML code to create and initialize all these controls. The following example shows the PasswordBox, labels, and a button. Sets the local value of a dependency property on a DependencyObject. Selects all the characters in the PasswordBox.Īttaches a binding to a FrameworkElement, using the provided binding object. (Inherited from FrameworkElement)Įvents Given below are the commonly used events of PasswordBox class.Ĭalled before the LostFocus event occurs. In XAML, you can establish resource items as child object elements of a frameworkElement.Resources property element, through XAML implicit collection syntax. Gets the locally defined resource dictionary. Identifies the PasswordRevealMode dependency property. Gets or sets a value that specifies whether the password is always, never, or optionally obscured. And We then access the Password property on the PasswordBox. In PasswordBoxPasswordChanged, we detect all modifications made to the input. Here we specify the PasswordChanged event handler. To begin, please drag a PasswordBox control to your WPF window. Identifies the Password dependency property. We use the Password property to read the value from the PasswordBox. Identifies the PasswordChar dependency property. Gets or sets the masking character for the PasswordBox. Gets or sets the password currently held by the PasswordBox. Identifies the MaxLength dependency property. ![]() Gets or sets the maximum length for passwords to be handled by this PasswordBox. Identifies the IsPasswordRevealButtonEnabled dependency property. In Windows 10 and later, use PasswordRevealMode instead. Gets or sets a value that specifies whether the visual UI of the PasswordBox includes a button element that toggles showing or hiding the typed characters. Identifies the InputScope dependency property. Gets or sets the context for input used by this PasswordBox.
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