4D Doc Center : List Box

4D v13.4

List Box

Constant	Type	Value	Comment
Listbox 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.
Listbox all	Longint	0	The command affects all sub-levels (default value, used when parameter is omitted).
Listbox 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.
Listbox display footer	Longint	8	0=hidden, 1=shown
Listbox display header	Longint	0	0=hidden, 1=shown
Listbox display hor scrollbar	Longint	2	0=hidden, 1=shown
Listbox display ver scrollbar	Longint	4	0=hidden, 1=shown
Listbox footer height	Longint	9	Height in pixels
Listbox header height	Longint	1	Height in pixels
Listbox hor scrollbar height	Longint	3	Height in pixels
Listbox hor scrollbar position	Longint	6	Position of the cursor in pixels
Listbox 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.
Listbox 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.
Listbox lines	Longint	1	Height designates a number of lines. 4D calculates the height of a line according to the font
Listbox pixels	Longint	0	Height is a number of pixels (default).
Listbox 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.
Listbox 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.
Listbox 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.
Listbox 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.
Listbox 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).
Listbox selection	Longint	1	The command affects selected sub-levels.
Listbox ver scrollbar position	Longint	7	Position of the cursor in pixels
Listbox ver scrollbar width	Longint	5	Width in pixels