Create a Tree View
You can create a tree view on your form.
To add a tree view field to your form
2. Select the Tree View icon on the field palette.
3. Place the tree view field on the form.
4. Set the properties for the tree view field, including AllowLabelEdit, HasButtons, HasLines, and HasRootLine.
As stated previously, the tree view initially appears empty even if you set HasButtons, HasLines, and HasRootLine to TRUE because the contents of the tree view must be defined programmatically.