List Box

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4D v16.3

List Box

Constant	Type	Value	Comment
lk add to selection	Longint	1	The row selected is added to the existing selection. If the row specified already belongs to the existing selection, the command does nothing.
lk all	Longint	0	The command affects all sub-levels (default value, used when parameter is omitted).
lk background color	Longint	1
lk background color array	Longint	1
lk break row	Longint	2	The command affects the sub-level to which the "cell" designated by the row and column parameters belongs. Note that these parameters represent the row and column numbers in the list box in standard mode and not in its hierarchical representation. If the row and column parameters are omitted, the command does nothing.
lk control array	Longint	3
lk display footer	Longint	8	Display Footers property Applies to: List box Possible values: lk no (0): hidden lk yes (1): shown
lk display header	Longint	0	Display Headers property Applies to: List box Possible values: lk no (0): hidden lk yes (1): shown
lk display hor scrollbar	Longint	2	0=hidden, 1=shown
lk display ver scrollbar	Longint	4	0=hidden, 1=shown
lk font color	Longint	0
lk font color array	Longint	0
lk footer height	Longint	9	Height in pixels
lk header height	Longint	1	Height in pixels
lk hor scrollbar height	Longint	3	Height in pixels
lk hor scrollbar position	Longint	6	Position of the cursor in pixels
lk inherited	Longint	-255
lk last printed row number	Longint	0	Returns in info the number of the last row printed. Lets you find out the number of the next row to be printed. The number returned may be greater than the number of rows actually printed if the list box contains invisible rows or if the OBJECT SET SCROLL POSITION command has been called. For example, if rows 1, 18 and 20 have been printed, info is 20.
lk level	Longint	3	The command affects all the break rows corresponding to the level column. This parameter designates a column number in the list box in standard mode and not in its hierarchical representation. If the level parameter is omitted, the command does nothing.
lk lines	Longint	1	Height is expressed as a number of lines. 4D calculates the height of a line according to the font.
lk pixels	Longint	0	Height is expressed as a number of pixels (default).
lk printed height	Longint	3	Returns in info the height in pixels of the object actually printed (including headers, lines, etc.). Remember that if the number of rows to print is less than the "capacity" of the list box, its height is automatically reduced.
lk printed rows	Longint	1	Returns in info the number of rows actually printed during the last call to the Print object command. This number includes any break rows added in the case of a hierarchical list box. For example, info is 10 if the list box contains 20 rows and the odd-numbered rows were hidden.
lk printing is over	Longint	2	Returns in info a Boolean indicating whether the last (visible) row of the list box has actually been printed. True = row has been printed; Otherwise, False.
lk remove from selection	Longint	2	The row selected is removed from the existing selection. If the row specified does not belong to the existing selection, the command does nothing.
lk replace selection	Longint	0	The row selected becomes the new selection and replaces the existing selection. The command has the same effect as a user click on a row (however, the On Clicked event is not generated). This is the default action (if the action parameter is omitted).
lk row height array	Longint	4	(4D View Pro license required)
lk row is disabled	Longint	2	The corresponding row is disabled. The text and controls such as check boxes are dimmed or grayed out. Enterable text input areas are no longer enterable. Default value: Enabled
lk row is hidden	Longint	1	The corresponding row is hidden. Hiding rows only affects the display of the list box. The hidden rows are still present in the arrays and can be managed by programming. The language commands, more particularly LISTBOX Get number of rows or LISTBOX GET CELL POSITION, do not take the displayed/hidden status of rows into account. For example, in a list box with 10 rows where the first 9 rows are hidden, LISTBOX Get number of rows returns 10. From the user’s point of view, the presence of hidden rows in a list box is not visibly discernible. Only visible rows can be selected (for example using the Select All command). Default value: Visible
lk row is not selectable	Longint	4	The corresponding row is not selectable (highlighting is not possible). Enterable text input areas are no longer enterable unless the "Single-Click Edit" option is enabled. Controls such as check boxes and lists are still functional however. This setting is ignored if the list box selection mode is "None". Default value: Selectable
lk selection	Longint	1	The command affects selected sub-levels.
lk style array	Longint	2
lk ver scrollbar position	Longint	7	Position of the cursor in pixels
lk ver scrollbar width	Longint	5	Width in pixels