Release 10.1A: OpenEdge Development:
Progress 4GL Reference

CAN-SET function

Returns a logical value indicating whether you can set a specified attribute for a specified widget.

Syntax

CAN-SET ( widget-handle , attribute-name )

widget-handle

An expression that evaluates to a widget handle. The handle must refer to a valid widget.

attribute-name

An expression that evaluates to a character-string value. The contents of the string must be an attribute name. For more information on attributes, see the "Attributes and Methods Reference" section.

Notes

For a field-level widget, the CAN-SET function always returns TRUE for the FRAME attribute; however, you can set the frame attribute only if the widget is dynamic. Therefore, before setting the FRAME attribute for a widget, you can test that the operation is valid with a statement similar to the following:

IF CAN-SET(my-handle, "FRAME") AND my-handle:DYNAMIC THEN my-handle:FRAME = frame-handle.

For SpeedScript, use with buffer-field, buffer-object, buffer, and query-object handles.

See also

CAN-QUERY function, LIST-QUERY-ATTRS function, LIST-SET-ATTRS function