Collapse – PB Docs 150

Collapse method (DataWindows)

Description

Collapses a group in a TreeView DataWindow that has the specified TreeView
level and includes the specified row.

Controls

DataWindow type

Method applies to

PowerBuilder

DataWindow control

Syntax

[PowerBuilder]

Argument

Description

dw_control

A reference to a TreeView-style DataWindow
control

row

The number of the row that belongs to
the TreeView level of the group to be collapsed

groupLevel

The TreeView level of the group to be
collapsed

Return Values

Returns 1 if the collapse operation succeeds and one of the
following negative values if it fails:

  • -1

    DataWindow is null

  • -5

    One or more of the parameters are invalid

  • -16

    DataWindow is not a TreeView DataWindow

Usage

A TreeView DataWindow has several TreeView level bands (groups)
that can be expanded and collapsed. You can use the Collapse method
to collapse a group in a TreeView DataWindow that includes a particular
row in a particular TreeView level.

The Collapse method triggers the Collapsing
and Collapsed events.

Examples

The following example collapses the group at TreeView
level 2 that includes row 3:

See Also


Document get from Powerbuilder help
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