Description
Expands a group in a TreeView DataWindow that has the specified TreeView level and includes the specified row.
Applies to
Syntax
PowerBuilder
Integer dw_control.Expand(long row, long groupLevel)
|
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 expanded |
|
groupLevel |
The TreeView level of the group to be expanded |
Return value
Returns 1 if the expand 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 Expand method to expand a group in a TreeView DataWindow that includes a particular row in a particular TreeView level.
The Expand method triggers the Expanding and Expanded events.
Examples
The following example expands the group at TreeView level 2 that includes row 3:
integer li_ret li_ret = dw_treeview.Expand(3,2)
See also
