![]() ![]() One of these is built-in change notification. The second reason for Dependency Properties is that WPF (and other XAML dialects) requires features that standard properties don't provide. An efficient way is needed to store those properties, especially since many of those properties simply sit there with their default values (a scenario that received special efficiency tuning in the Dependency Property system). Systems like WPF instantiate lots and lots of objects, all of which have lots and lots of properties. Why such a difference? One reason is the matter of efficiency. NET are a language feature that combines a get/set pair of methods with some internally stored value (such as the text of a TextBox), Dependency Properties, while still being accessible through get/set, store their values in an external, highly optimized place. These XAML properties are implemented as “Dependency Properties.” The main difference is that while properties in. ![]() What may not be obvious to the casual observer is that in XAML, these properties are slightly different from “normal” properties. This includes elements with properties that can be used to change the appearance or behavior of said elements. In more sophisticated terms, Attached Properties are a feature that allows developers to extend UI objects with arbitrary features in very powerful ways.īut let's start at the beginning: In systems such as WPF (Windows Presentation Foundation) or WinRT (what the industry generally refers to as the “XAML Dialects”), UI elements and controls behave much like you would expect them to behave. In simple terms, these are properties that can be arbitrarily attached to just about any object in the UI hierarchy and allow attaching data that needs to be associated and stored with those objects. Yes, a crutch, but this is the simplest solution.Ī link to a very similar answer from the big SO: showing password characters on some event for passwordbox can still be Focus added, as done there.All XAML dialects support a feature that is used mostly by accident, yet goes overlooked for its vast potential: Attached Properties. Var passrod = ? pwdTextBox.Text : pwdPasswordBox.Password Well, by clicking on the button, we will display our password, this is for clarity: private void Button_Click_1(object sender, RoutedEventArgs e) PwdPasswordBox.Visibility = Visibility.Visible // PasswordBox - отобразить PwdTextBox.Visibility = Visibility.Hidden // TextBox - скрыть PwdPasswordBox.Password = pwdTextBox.Text // скопируем в PasswordBox из TextBox PwdPasswordBox.Visibility = Visibility.Hidden // PasswordBox - скрыть PwdTextBox.Visibility = Visibility.Visible // TextBox - отобразить ![]() PwdTextBox.Text = pwdPasswordBox.Password // скопируем в TextBox из PasswordBox Private void CheckBox_Click(object sender, RoutedEventArgs e) The main condition is the location of the TextBox and PasswordBox in the same place with the same coordinates. Button – the button for displaying the password in the window.PasswordBox – the password will be hidden here.TextBox – the password will be visible here.We have TextBox, PasswordBox, CheckBox and Button. But I will propose a crutch solution that I somehow implemented. Answer:Īs you've already been told, PasswordBox does not have this functionality. Hello! How to make sure that when the CheckBox selected, the password is hidden and vice versa, I still cannot understand.
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