RadioButton DataBinding, without code-behind

[hhrafn]

Hi, I'm trying to do DataBinding in XAML woutout any coudebehind. However I can't find any of the nice Binding features found on most other WPF controls. What is the most current and prefered way to do databinding on RadioButtons ?

[Mark Salsbery]

hhrafn wrote:

I can't find any of the nice Binding features found on most other WPF controls

Which properties of the RadioButton control are you trying to bind to that are missing "the nice Binding features"?

Mark Salsbery Microsoft MVP - Visual C++ :java:

[hhrafn]

well, I'd like to use the radio buttons like this: (in theory at least) <RadioButtons ItemsSource="{Binding Colors}" /> Then picking up the selected item through a selectedItem binding (?) Basically my problem is that I need it to be MVVM (no codebehind) and this radio button list will also be dynamic (changeable).

[Gideon Engelberth]

Well, a RadioButton is not an items control, and I have never heard of a "RadioButtons" control. You might try using an ListBox to allow you to bind the ItemsSource and make a RadioButton in the ItemTemplate. The tricky part will be binding the IsChecked of the RadioButton to the IsSelected on the ListBoxItem.

[Mark Salsbery]

In addition to Gideon's reply... Why are you hung up on not using code behind? What's the difference between code generated from the XAML and code you write? It's the same class either way. You could provide individual bool properties to bind the IsChecked properties of each radiobutton to. You could also use a converter to modify the IsChecked properties of the radiobuttons into some other form, like an enum etc.

Mark Salsbery Microsoft MVP - Visual C++ :java:

[ausadmin]

I'm not sure if I totally understand your requirement, however you can certainly use MVVM to support a radio button list. Take a look at "Creating an Internationalized Wizard in WPF" [^], in particular the section "Presenting Options via OptionViewModel". In this example the OptionViewModel is used for CheckBox options and RadioButton options. BTW it can be extended for a Combobox - you will see my thread in the discussions for the article, and Karl's solution. I hope this helps. Tim

[hhrafn]

Thank you, this solution looks perfect for me :-D My main requirement in this project is to follow the MVVM pattern, or "total" seperation of View and Code (control). Thanks again.