Proposal: Make `SelectedItems` for `ListView` and `TreeView` available in XAML

[karmeye]

Proposal: Make SelectedItems for ListView, TreeView, available in XAML

In this way one can handle multiple selections via binding: SelectedItems="{x:Bind ViewModel.SelectedItems, Mode=TwoWay}", just as is possible now with SelectedItem.

Summary

Rationale

• To be able to bind to SelectedItems

Scope

Capability	Priority
This proposal will allow end users to accomplish binding	Should

Important Notes

Open Questions

I don't know whether there's a technical or design reason for not including it. But it makes sense to me since SelectedItem (SelectedItemProperty) is there so why not also have support for multiple selection?

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Please view the issues below to see if they solve your problem, and if the issue describes your problem please consider closing this one. Thank you!

Open similar issues:

• Proposal: Switch from ListView to ItemsRepeater for TreeView (#2077), similarity score: 0.72

Closed similar issues:

• TreeView should have a SelectedItem property (#197), similarity score: 0.76
• Proposal: Make TreeView.SelectedItem a DependencyProperty (#2458), similarity score: 0.74
• Proposal: Add "ItemSelected" event to TreeView control (#3548), similarity score: 0.70

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