Selected Items using MVVM in WinRT

Question

I'm struggling to find a way to bind the SelectedItems property in a ListView to the view model.

Previously I used this: http://www.codeproject.com/Articles/412417/Managing-Multiple-selection-in-View-Model-NET-Metr which no longer works in the RTM release.

Any help is much appreciated!

Thanks in advance :)

score 5 · Answer 1 · answered Sep 19 '12 at 13:02

5

You could look at the ListViewExtensions.BindableSelection from the WinRT XAML Toolkit on CodePlex.

answered Sep 19 '12 at 13:02

mschoneman

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This gave me the same error as before - binding to a type ('null'). – Jamie Sep 19 '12 at 18:33

score 3 · Accepted Answer · answered Sep 19 '12 at 18:36

3

Turns out binding to the attached property was failing because the type of the attached property was being seen as

From the output window in Visual Studio:

type ('null')

After further research it became apparent that any generic class would fail to bind with this exact error. As a quick fix I simply changed the type to "object".

answered Sep 19 '12 at 18:36

Jamie

4,670
5
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Did you change the type of your SelectedItems object to object? – Chris Woolum Jan 17 '13 at 22:26
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I changed `ObservableCollection` to `ObservableCollection – Jamie Jan 17 '13 at 23:03

score -1 · Answer 3 · answered Nov 02 '13 at 13:41

-1

You can direct bind the selected item to another ui element or a property in your mvvm class

answered Nov 02 '13 at 13:41

user2947842

1

Selected Items using MVVM in WinRT

3 Answers3

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