ItemFocusChanged
event (DataWindows)
Description
Occurs when the current item in the control changes.
PowerBuilder event
information
Event ID: pbm_dwnitemchangefocus
|
Argument |
Description |
|---|---|
|
row |
Long by value. The number of the row containing the |
|
dwo |
DWObject by value. A reference to the column |
Return Values
There are no special outcomes for this event. The only code
is:
0 — Continue processing
Usage
ItemFocusChanged occurs when focus is set to another column in the
DataWindow, including when the DataWindow is first displayed.
The row and column together uniquely identify an item in the
DataWindow.
PowerBuilder programming
note
In the ItemFocusChanged event, dwo is always a column control.
Therefore, you can get more information about it by examining any
properties that are appropriate for columns such as dwo.id and
dwo.Name.
Examples
This example reports the row and column that just gained focus and
that just lost focus. (The first time the event occurs, there is no item
that just lost focus; the script saves the row number and column name in
two instance variables called ii_row and is_colname so that the old item
is known the next time the event occurs.)
|
1 2 3 4 5 6 7 8 9 10 11 12 13 |
IF ii_row > 0 THEN sle_olditem.Text = "Old row: " + String(ii_row) & + " Old column: " + is_colname END IF sle_newitem.Text = "New row: " + String(row) & + " New column: " + dwo.Name // Replace values of instance variables // with info for next change in focus ii_row = row is_colname = dwo.Name |
See also