Wpf Activate Window From Viewmodel. I have a method within the code behind of my View (this metho

I have a method within the code behind of my View (this method does something to my UI). This does not violate the separation of design and logic. But you usually want you ViewModel not to know your Is there a smart way for me to find out what WPF Window is associated with what ViewModel? I'm currently building a dialog service and I need to set the owner to a specific I want to open a new Window in my app but I'm not sure if I should open it from the ViewModel using an ICommand or directly from the view using a standard event. In order to code a method that adds the selected item from a ComboBox to a What is the best way to bind a WPF event in the View to the ViewModel? I have a drop event in my View but I want to replace it to the ViewModel due binding. ViewModelで何か操作したときに、現在のアクティブなWindowを取得したいということが稀にあります。そんな場合、下記のコードで現在アク In a WPF application that uses the MVVM (Model-View-ViewModel) design pattern, the view model is the component that is responsible for handling the application’s presentation If I am correct this solution works as follows: Click button in MainWindow that have binding to a command in MainViewModel -> Pass ViewModel to DialogService that is creating I've an WPF application where tried to implement MVVM pattern and Prism 2. Cancel to true after showing a MessageBox. <Window If you want to perform certain actions at the ViewModel level when the parent window is closed or prevent a window from being closed, bind the CurrentWindowService’s ViewModel is located between the View and Model layers. This is a weak event pattern, late binding and the view doesn't need to be aware of If they are identified in the event as the module required to activate their views, then just put the code to activate the views. I have a window, and have tried to set the DataContext using the full namespace to the ViewModel, but I seem to be doing something wrong. I would WPF C# : How to activate Topmost window I have a main window running and its minimized. Anyway, I'd like to trigger this method from my ViewModel. However, there are When I want to show another window, I have to implement another class with the same interface and logic. Found several solutions but My primary candidate for any viewmodel <-> view communication would be binding. Window Activation and Deactivation Sample This sample demonstrates the use of Activated and Deactivated to only play a media file when a window is currently active. The RelayCommand takes two parameters - the first is the delegate that gets called when the It is ok that the ViewModel creates a new view as a result of the business logic and activate (displays) it. Here is an example: You could try binding it to a Window present in you ViewModel, and from you VM set the Window to whatever is relevant. How can I make this class generic so that I can just pass an instance of any window I have a C#/WPF app based on MVVM pattern. A ViewModel is just WPF commands are used to handle requests from the view, such as button or menu item clicks. I open another window from the main window which is topmost window. On clicking a button on this toolbar, I need to Sometimes when developing a WPF application, I need to access a certain Window (View) from the corresponding ViewModel, to perform or fire a method like this for example: This example demonstrates how to use the WindowService to show a view as a window and control it from the View Model. Have a look at the answer of this question: I have a WPF Window, and in that window I have a grid. I use M-V-VM model and I want to add a TextBox to the grid dynamically in code(in viewmodel) How can I get access to . This is where the controls for interacting with View are housed, while binding is Describe the bug If Activate is called on a Window which is in the background of other windows, that window is not activated and Learn how to programmatically retrieve a View Page from its associated ViewModel, overcoming MVVM pattern constraints. The question pretty much says it all. However i I've come across the situation, where I need access to the controls in the View from the ViewModel. How could this be done? To cancel closing of a window you can subscribe to the Closing event of view and set CancelEventArgs. The CurrentWindowService allows you to obtain I can only suggest that you use WPF as it is supposed to be used and stop trying to use WinForms techniques. The app has a window with a tool bar. I have a Usercontrol which has subscribed to an event fired from another Usercontrol. In Model-View-ViewModel (MVVM) architecture, the ViewModel should not have direct references to the View in order to maintain separation of concerns.

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