![]() In this example, we use two attached properties. ![]() You can also extend it into an Attachedbehaviour, where you are making the control react to changes to the property. To achieve this, we turn to a regular WPF solution provider, the AttachedProperty.ĪttachedProperties allow you to add extra properties to any control. In the case of this demonstration, the watermark also disappear after you start typing text, so they are more like a field "hint" telling you what is expected. The purpose of a watermark is to convey a message behind the control. Hence I have created a custom class with attached properties such as WatermarkText (for showing the help text about the box), IsMonitoring (for monitoring the input), TextLength (for finding the input text length) and HasText (an internal property which decides whether the watermark text needs to be shown in box or not). #WPF PASSWORDBOX HIDES TEXT CODE#Just download the source code from here, unblock, unzip, load in Visual Studio & run! Very simple solution to a commonly requested pair of controls. There is a WatermarkTextBox in the Extended WPF Toolkit, there is (to date) no solution for the PasswordBox. Also, I prefer to keep my projects as light as possible, so here is a This project contains watermark solutions for the TextBox and the PasswordBox. #WPF PASSWORDBOX HIDES TEXT PASSWORD#PasswordHidden.Visibility = Visibility.To download the source code for this project, please click here. The PasswordBox class in WPF represents a Password TextBox that provides functionality to mask and hide characters. ![]() PasswordUnmask.Visibility = Visibility.Hidden PasswordUnmask.Text = PasswordHidden.Password PasswordHidden.Visibility = Visibility.Hidden PasswordUnmask.Visibility = Visibility.Visible Private void ShowPassword_MouseLeave(object sender, MouseEventArgs e) => HidePasswordFunction() I've attached a simple sample to demonstrate the main idea of the. You can show TextEdit in front of PasswordBo圎dit and bind its TextEdit.EditValue property to PasswordBo圎dit's Password. Private void ShowPassword_PreviewMouseUp(object sender, MouseButtonEventArgs e) => HidePasswordFunction() Andrey Marten (DevExpress Support) A similar question was earlier discussed in the following ticket: Is it possible to show the text in a PasswordBo圎dit. ![]() Now in your code you need to program the functions: private void ShowPassword_PreviewMouseDown(object sender, MouseButtonEventArgs e) => ShowPasswordFunction() The events are PreviewMouseDown PreviewMouseUp and MouseLeave but you can choose the appropriate event for your situation. Next you need to add 3 different events in the trigger element, for example (this is valid for TextBlock or Image, if you want to use a Button you should to choose another events): Next under the PasswordBox tag you should to add a TextBox with Visibility value setted to Hidden: Īnd a trigger to show / hide the password, for example a simple text or a button. Add a ViewModel class, as used in the Model-View. First you should to add the value PasswordChar in your PasswordBox: As a minimalist example, start by creating a new WPF project from Visual Studio: As an example control that we wish to show or hide, modify the xaml to include a button, as follows: As in a previous posting, I will use the MVVM pattern as a means of abstracting the view’s state and behaviour. ![]()
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