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Navigating the tree nodes with the Tab key works just fine, as does Shift+Tab to move to a previous node in the tree structure. Also, when I reach the last node in the tree and press Tab again, focus is correctly moved to the next control in the visual tree . But when using Shift+Tab to navigate back to the first node in the tree, the end of the line is reached. Shift+Tab does nothing anymore. The only way to navigate to a control before the tree is to tab all the way around the entire page.
/Henrik
/Henrik