In this article, we developed the DirectoryTree control and showed how to add the basic design-time support by adding a toolbox icon, checking the control run mode, and applying attributes. In the next article, we'll tackle designers and UITypeEditors to add a richer level of design-time interface. These tools provide another way for developers to configure their custom controls at design-time.
If you want to continue to work with the DirectoryTree code, you could add a number of enhancements. For example, you might provide a SelectedDirectory property that returns the full path of the currently selected node, and allows you to change it programmatically. You could also add a custom ListView control to provide a synchronized file list, simply by responding the DirectorySelected event.
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