TreeView presentation style – PB Docs 2017

The TreeView presentation style provides an easy way to create
DataWindow objects that display hierarchical data in a TreeView, where
the rows are divided into groups that can be expanded and
collapsed.

The TreeView DataWindow displays a hierarchy of nodes, similar to
the way:

In the TreeView DataWindow, each parent node contains other nodes
called child nodes. You can display parent nodes—nodes that contain
child nodes—in expanded or collapsed form.

With the TreeView DataWindow presentation style, you can group
data in a hierarchy that allows users to browse the data and expand
nodes to view details. Each TreeView level or node has an icon that
users can click to expand or collapse the node.

You use the TreeView DataWindow wizard to create a TreeView
DataWindow object. For information, see Creating
a new TreeView DataWindow.

Example

This sample TreeView DataWindow uses the department and employee
tables in the PB Demo DB database and has two TreeView levels. The first
level is the department name. The second level is the city where each
employee resides. The detail data for each employee is grouped in
TreeView leaf nodes under these two levels.

Similarities to the Group presentation
style

Creating and using a TreeView DataWindow is similar to creating
and using a Group DataWindow. However, with the TreeView DataWindow, you
can click the state icon to expand and collapse nodes.

The state icon in a TreeView DataWindow is a plus sign (+) when
the node is collapsed and a minus sign (-) when the node is expanded.
When a node is expanded, connecting lines display by default to show
more detail and indicate how the parent data connects with the child
data. When a node is collapsed, only the parent data displays; the
detail data does not.