Radio button navigation

Hi David,

Take a look at our main Features demo's MainControl.xaml. In that we do this all in XAML.

Scroll down to where demoPathPage is defined. We have a ListBox that looks like a radio button list. Each list box item has a Tag with a string name of another page.

There is a binding on the ListBox to set the WizardPage's NextPage property to the value of the currently selected item's Tag. Thus everything is achieved 100% in XAML.

Thanks--very helpful, I'll check that out.

For those using MVVM architecture, there is another solution that avoids code-behind in the wizard. It involves binding the radio buttons to a command that changes the NextPage property of the wizard page. Here is the procedure to implement it.

1) In your view model for the wizard, create a 'SetNextPage' ICommand property, and a 'NextPage' bindable string property. The ICommand class will need a reference to the view model.

2) The Execute() method of the ICommand should convert the parameter passed into it into a string and set the view model's NextPage property to that value.

3) In the XAML for the page with your radio buttons, add a command binding to each radio button that binds the button to the SetNextPage command in the view model. Then add a CommandParameter property that passes the name of the page that should be navigated to if that button is pressed.

4) Still in XAML, bind the NextPage property of the wizard page that has the radio buttons to the NextPage property of the view model.

When a radio button is pressed, the SetNextPage command will change the NextPage property of the view model to the page passed as the CommandParameter by the radio button. Since the NextPage property of the radio button page is bound to that view model property, the change is propagated back to the wizard page, and the wizard will navigate to the desired page when the Next button is clicked.

Just one more reason why I love the MVVM pattern.

[Modified at 04/07/2009 02:22 PM]

Thanks for the helpful post David. I'm sure other customers using MVVM will appreciate it.