Proposal: Make TreeView.SelectedItem a DependencyProperty

Proposal: Make TreeView.SelectedItem a DependencyProperty

Summary

The TreeView.SelectedItem property is not a DP, hence it is not possible to bind to the view model with the TwoWay mode.

Rationale

One common pattern for a list or tree view is the master detail pattern. The user selects an item from an items view (ListView, ComboBox, ListBox, TreeView etc.) and in a secondary view more details for the given item are presented, for example the body of an email, the content of a directory or the article of an rss feed. In order for the view model to retrieve the selected email from the server, it must know if and which email was selected in the list/tree. In most, if not all, other items controls, the SelectedItem property is infact a DependencyProperty.

[quinmars]

I really like your open source spirit. I had a similar issue with WPF a few years ago. But I would never have thought of reporting this. I would not have even known where. And here it was solved in less than two weeks. Thank you very much!

[chingucoding]

Sure, I’ll create a PR shortly.