Widget Class: _needRefresh

Widget Class: _needRefresh

Marks a widget for a later refresh operation

Syntax
Details

Syntax

objectName._needRefresh( );

Details

If you write new methods for a Widget subclass, your methods may alter widgets such that they are not marked for refresh. For example, your new methods may change the value a widget displays. In this case, if you want the widget to be refreshed when the Frame is refreshed, invoke the _needRefresh method from your method.

Example

The following example marks the widget named stickerPrice to be refreshed and then calls the Frame entry's _refresh method. This causes the Frame to execute the _refresh method on the widget stickerPrice.

Note: The _needRefresh method itself does not execute stickerPrice's _refresh method. [cautionend]

stickerPrice._needRefresh();
_frame_._refresh();

See _refresh in this class for another example of using the _needRefresh method.

Chapter Contents
Previous
Next
Top of Page