Using Zen Components - InterSystems Documentation

Trees7.4 TreesThe following Zen components each provide a hierarchical outline of links. The outline expands or contracts in responseto user clicks:• • 7.4.1 The is a group with the ability to show or hide its children. A right-arrow graphic ( ) beside the label indicates that the group is expanded (displayed), and a down-arrow graphic ( ) indicates that the group is contracted(hidden). A fully contracted group looks like the following example.The user expands the group by clicking on its label. The contents of the then display below the label. As a Zengroup, an may contain any type of Zen component. In particular, each level of the may containadditional, nested groups that can be expanded or contracted independently of the containing group.In the following example, the user has just clicked on the label to expand the group. The cursor is now poised to contractthe by clicking the label again. This example contains three nested groups. The innermost uses a horizontal layout, and contains components instead of components as in the other levels.Using Zen Components 205