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Description
Occurs before a node in a TreeView DataWindow expands.
PowerBuilder event information
Event ID: pbm_dwnexpanding
Argument Description
row Long by value. The number of the first row in the group to be expanded.
grouplevel Long by value. The TreeView level of the group to be expanded.
Return value
Set the return code to affect the outcome of the event. Return 0 to continue processing (expand the selected node) or return any other value to cancel the expansion.
Usage
A TreeView node expands when the user clicks the State icon (+) in the TreeView DataWindow or uses any of the Expand methods.
The Expanding event occurs before the Expanded event.