Specifying images for tree node icons

In the sample DataWindow shown in “Creating a new TreeView DataWindow”, different tree node icons display
for collapsed and expanded levels. The icons are also different
for each level. You specify images for these icons as TreeView level
band properties.

The sample DataWindow also displays a tree node icon next
to every row in the detail band. You specify an image for this icon
as a detail band property.

Tree node icons do not display by default. After specifying
images for icons, select the Use Tree Node Icon general property.