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This article introduces the knowledge of "how to use the CM framework of C # to achieve multi-page management". In the operation of actual cases, many people will encounter such a dilemma, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!

Traditional way

Background code: ① defines the collection and adds data:

Public IViewModel ActiveWindowView {get; set;} public ObservableCollection ListBoxItems {get; set;} public string SelectedItem {get; set;} ListBoxItems = new ObservableCollection () {}; ListBoxItems.Add ("ShellView"); ListBoxItems.Add ("EventAggregatorView"); ListBoxItems.Add ("ConductorView"); ListBoxItems.Add ("MatchTemplateView"); ListBoxItems.Add ("IndicatorLightView"); ListBoxItems.Add ("MemorandumView") ListBoxItems.Add ("FTPTestView")

Change the selection of ② listbox and switch to the page:

Public void ListBoxItems_SelectionChanged () {switch (SelectedItem) {case "ShellView": ActiveWindowView = new ShellViewModel (); break; case "EventAggregatorView": ActiveWindowView = EventAggregatorViewModel.Instance; break; case "ConductorView": ActiveWindowView = new ConductorViewModel (); break Case "MatchTemplateView": ActiveWindowView = new MatchTemplateViewModel (); break; case "IndicatorLightView": ActiveWindowView = new IndicatorLightViewModel (); break; case "MemorandumView": ActiveWindowView = IoC.Get (); break; case "FTPTestView": ActiveWindowView = new FTPTestViewModel (new FTPConfig ()); break Default:break;}}

③ foreground binding:

Using Conductor under the framework of CM

① backend code: first, you need to inherit Conductor.Collection.OneActive to use the following methods and properties of this class. Secondly, the constructor needs to add the received interface IEnumerable, so the modified code is as follows:

Public MainWindowViewModel (IEnumerable modules) {Items.AddRange (modules); ActivateItem (Items.FirstOrDefault (vm = > vm.GetType () = = typeof (IndicatorLightViewModel));}

If you don't consider the page that is activated for the first time, then the core code has only one sentence:

Items.AddRange (modules)

② foreground code:

In this way, the front and background settings are done, inheriting a framework of multi-screen management class, so that the front and background code is greatly simplified, the function is not reduced, to be exact, it is more powerful, this is the advantage of the CM framework.

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