OpenEdge Development:<br />Progress 4GL Reference LIST-QUERY-ATTRS function

Returns a comma-separated list of attributes and methods that are supported for an object or widget.

Syntax

A handle to a valid object or widget. The function returns a list of the attributes and methods that are supported for that object or widget.

LIST-QUERY-ATTRS ( `widget-handle` )

The following example uses the LIST-QUERY-ATTRS and LIST-SET-ATTRS functions to populate selection lists with the valid attributes and methods for a specified widget. When you run this procedure, type ? at any time to see lists of valid attributes for the widget that currently has focus.

r-lattrs.p
DEFINE VARIABLE inv-price LIKE item.price. DEFINE VARIABLE inv-value LIKE item.price. DEFINE VARIABLE report-type AS INTEGER INITIAL 1. DEFINE VARIABLE qattr-list AS CHARACTER LABEL "Readable" VIEW-AS SELECTION-LIST INNER-CHARS 20 INNER-LINES 5 SCROLLBAR-VERTICAL SORT. DEFINE VARIABLE wattr-list AS CHARACTER LABEL "Writable" VIEW-AS SELECTION-LIST INNER-CHARS 20 INNER-LINES 5 SCROLLBAR-VERTICAL SORT. DEFINE BUTTON ok-butt LABEL "OK" AUTO-GO. DEFINE BUTTON cancel-butt LABEL "CANCEL" AUTO-ENDKEY. FORM inv-price LABEL "Price" AT ROW 1.25 COLUMN 2 report-type LABEL "Report Sorted ..." AT ROW 2.25 COLUMN 2 VIEW-AS RADIO-SET RADIO-BUTTONS "By Catalog Page", 1, "By Inventory Value", 2 SKIP ok-butt cancel-butt WITH FRAME select-frame SIDE-LABELS. FORM qattr-list wattr-list WITH FRAME list-frame TITLE "Attributes" WIDTH 30 COLUMN 47. ON ? ANYWHERE DO: FRAME list-frame:TITLE = "Attributes for " + FOCUS:TYPE. qattr-list:LIST-ITEMS IN FRAME list-frame = LIST-QUERY-ATTRS(FOCUS). wattr-list:LIST-ITEMS IN FRAME list-frame = LIST-SET-ATTRS(FOCUS). ENABLE qattr-list wattr-list WITH FRAME list-frame. RETURN NO-APPLY. END. ENABLE ALL WITH FRAME select-frame. WAIT-FOR WINDOW-CLOSE OF CURRENT-WINDOW.

r-lattrs.p

DEFINE VARIABLE inv-price LIKE item.price.
DEFINE VARIABLE inv-value LIKE item.price.
DEFINE VARIABLE report-type AS INTEGER INITIAL 1.

DEFINE VARIABLE qattr-list AS CHARACTER LABEL "Readable"
                   VIEW-AS SELECTION-LIST INNER-CHARS 20 INNER-LINES 5
                   SCROLLBAR-VERTICAL SORT.
DEFINE VARIABLE wattr-list AS CHARACTER LABEL "Writable"
                   VIEW-AS SELECTION-LIST INNER-CHARS 20 INNER-LINES 5
                   SCROLLBAR-VERTICAL SORT.
DEFINE BUTTON ok-butt LABEL "OK" AUTO-GO.
DEFINE BUTTON cancel-butt LABEL "CANCEL" AUTO-ENDKEY.
      
FORM
   inv-price LABEL "Price"
      AT ROW 1.25 COLUMN 2
   report-type LABEL "Report Sorted ..."
      AT ROW 2.25 COLUMN 2 
      VIEW-AS RADIO-SET RADIO-BUTTONS "By Catalog Page",    1,
                                      "By Inventory Value", 2
   SKIP
   ok-butt cancel-butt
   WITH FRAME select-frame SIDE-LABELS.

FORM
   qattr-list wattr-list
   WITH FRAME list-frame TITLE "Attributes" WIDTH 30 COLUMN 47.

ON ? ANYWHERE
  DO:
     FRAME list-frame:TITLE = "Attributes for " + FOCUS:TYPE. 
     qattr-list:LIST-ITEMS IN FRAME list-frame = LIST-QUERY-ATTRS(FOCUS).
     wattr-list:LIST-ITEMS IN FRAME list-frame = LIST-SET-ATTRS(FOCUS).
     ENABLE qattr-list wattr-list WITH FRAME list-frame.
     RETURN NO-APPLY.  
END.

ENABLE ALL WITH FRAME select-frame.

WAIT-FOR WINDOW-CLOSE OF CURRENT-WINDOW.

LIST-QUERY-ATTRS function

Syntax

See also