However, chances are high that you'll stay below 10 lines of code, as the base class just needs to know three things: That's abstract like in: You will have to write some code (gasp!) in order to getting started. Extending TreeViewBaseĪll the features of V-Tree are being provided by the abstract TreeViewBase class. As I'll refer to WPF's built-in TreeView control a lot, I'll call it V-Tree throughout this article (which is completely random, btw). However, I won't write that all over the place because that just sounds horribly narcistic, and it doesn't really make sense here at CP anyway. Regarding terms: Actually, this is the " WPF TreeView Control," as I published the initial version on my blog. If you're already tired of reading, you might just download the sample, play around, and come back later if you need more information. Pretty much everything I am going to write here is illustrated in the sample application that comes with the download. The tree layout (expanded/selected nodes) can be saved and reapplied.Various extension points - a lot of code is virtual and can be overridden in order to control the behavior of the tree - down to the creation of single TreeViewItem instances.You can get a tree node (UI) by a bound item (data) and vice versa, or recursively iterate through all your tree nodes. This resolves reloading and focus issues with the control. Internally, there is a clear distinction between UI (tree nodes) and bound items.And as opposite to the standard TreeView, the SelectedItem property is not read-only.
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