Wpf contentcontrol binding not updating

03-Jul-2018 21:08 by 5 Comments

Wpf contentcontrol binding not updating - Livesixvideo

It was very natural to use the concepts I explain here.

Using MVVM it took me about 10 minutes to create the basic structure of the dialog withouth writting a single line of code in the files.Create sub-configuration dialogs For this example, I created 2 sub-configuration dialogs just for the demo.I just put a Text Block into a Grid to demonstrate the principles.Of course, we should add real configuration controls such as Check Box, Text Box, etc. Create a View Model class for each View I used to use an abstract base class for all my View Model classes where I implement the INofity Property Changed interface.I also use a trick from Josh Smith to throw an exception if the property name doesn’t exist when the Property Changed event is raised.That gives us 3 new files: Setup the main View to consume datas from its View Model I did some changes in the XAML to databind the List Box’s Items Source property to the View Model.

Because I always set the Data Context property of a view to its associated View Model, there is no ambiguity: . We have a View associated to each Settings View Model Base. Because we want do display the dialog that is currently selected in the menu, we can use a simple Data Binding (here, the List Box has been named List Box Menu): What I’m saying here is that General Settings View Model should be rendered using a General Settings View. Because the Views are created using a Data Template, we do not need to setup the Data Context, it will be automatically registered to the templated object, the View Model.A quick post here about using a Content Presenter (or a Content Control which uses a Content Presenter in its template) with its Content property.The intended usage of Content Presenter is to set the Content to some binding to a data object, then control the element tree via the Content Template property.Because the View are XAML only, I can give them to a designer that will tweak them to make them have a nice look.You can download the source code for this example here.If you choose to participate, the online survey will be presented to you when you leave the Msdn Web site.

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