Tree widgets are displaying simple, hierarchic data (e.g. widget Folder Browser.). They support drag & drop functions for suitable objects and provide context menu functions in the empty area or single nodes.
These general functions are provided. However it depends on the widget, whether the functions are active.
Search/Search next
Context menu function Search allows a text search within the loaded nodes. hits will be marked. With function Search next the next hit is marked.
Save expanded nodes
Some widgets allow saving the state of the expanded nodes. When saved, the nodes will be displayed again in their expanded state on restart.
It is not possible to save all nodes in the expanded state. Mainly available for unique structure nodes with text names. |
Multi-level expansion on nodes
On expandable nodes, a context menu function is offered which allows to expand the node on multiple levels. The availability and the maximum expansion depth depends on the widget settings. The expansion depth is based on the node on which the function was executed. Multiple selection is possible. In addition to the option of expanding all nodes, you can also expand the tree to exactly one level (Display one level below) or exactly two levels (Display two levels below). All nodes on the last level to be displayed are closed. If, for example, two levels below shall be displayed, all nodes on level two are closed so that only level one and two are displayed.
The availability of the Display All function can be restricted for specific widgets. Instead, a function Display <n> levels below is offered. | |
For specific widgets, it is possible that certain nodes are not expanded even though the maximum expansion depth has not yet been reached (for example, in recursions). |