![]() ![]() If you leave that out, it will just display Operation.ToString() by default. This tells the ListBox that for each Operation item, it needs to show the Name property. First, I added a name to the ListBox so that I can refer to it from my ContentControl. First, we need to change our ListBox as follows: (new Operation("List Users", new ListUsersControl())) Īll we have left to do is wire up the bindings on the XAML view of MainWindow.xaml. (new Operation("Add User", new AddUserControl())) You will also need to add the following near the top for UserControl to make sense:īack in MainVM, replace the whole (String-based) class with the following (Operation-based): Public Operation(String name, UserControl control) ![]() Add a new class named Operation and implement it like this: One option is to use a Tuple, but a better solution is to create a dedicated class. "Add User") to the corresponding UserControl. Now, we need to map each operation name (e.g. Put this instead of the default grid:Ĭreate another UserControl, ListUsersControl.xaml, and replace the grid with the following: Instead of implementing functionality to add or list users (which isn't the point of this article, we'll just stick some static content instead. ![]() and select "User Control (WPF)" - don't confuse it for the "User Control" which is actually a Windows Forms thing) and name it AddUserControl.xaml. We'll first create each detail as a separate UserControl - this will allow us to easily plug them into our window.Īdd your first UserControl (right click on project, Add -> New Item. Right, now to actually fill in the detail view depending on what master option is selected. Sure enough, pressing F5 to debug the project shows that the ListBox is filled with the values we hardcoded earlier: Note how we're binding to the Operations property, and this is interpreted as belonging to the DataContext, which is a MainVM in this case. This is important because when we do our data binding, the properties are always relative to the DataContext.īack in our XAML view for MainWindow.xaml, we can now see that our binding works by adding an ItemsSource to the master ListBox: ), set the DataContext to an instance of MainVM in the constructor. Make the class public, and set up some hardcoded values for the options that will appear in the master view: Add a new class (right click on project, select Add -> New Item.) and call it MainVM. Next, we need a ViewModel for our MainWindow. The detail view is a ContentControl, which is a container we can use to hold user controls. Isn't that simple? We use a ListBox for the master view, and move it to the left thanks to the DockPanel that contains it. So let's start off by adding a new C# WPF Application: What we're going to do in this article can easily be done using the event-driven model (a la Windows Forms), but I'm writing this mainly for those who are trying to adopt the MVVM approach and who (like me) had a hard time grasping how it works. MVVM (Model-View-ViewModel) is an approach that promotes using data binding and commands over events. I'm going to be using Visual Studio 2013 RC for the examples (just to try it out, really), but you should be able to use SharpDevelop or any version of Visual Studio from 2008 onwards.īefore we begin, a brief note on MVVM is in order. This is an advanced article, so read on only if you have a fair grasp of the following: C#, WPF, data binding, and MVVM. A control panel is a special case of a master/detail layout, where options are usually few and predefined, so you don't need to load any detail dynamically as options are selected. ![]() In this article I'm going to show how you can implement a simple control panel in WPF using the MVVM design pattern. ![]()
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