4D v16.3
LISTBOX SELECT BREAK
- 4D Language Reference
-
- List Box
-
- Managing List Box Objects
- Managing Hierarchical List Boxes
- Using object arrays in columns (4D View Pro)
- 4D View Pro
- LISTBOX COLLAPSE
- LISTBOX DELETE COLUMN
- LISTBOX DELETE ROWS
- LISTBOX DUPLICATE COLUMN
- LISTBOX EXPAND
- LISTBOX Get arrayUpd
- LISTBOX GET ARRAYS
- LISTBOX GET CELL COORDINATES
- LISTBOX GET CELL POSITION
- LISTBOX Get column formula
- LISTBOX Get column width
- LISTBOX Get footer calculation
- LISTBOX Get footers height
- LISTBOX GET GRID
- LISTBOX GET GRID COLORS
- LISTBOX Get headers height
- LISTBOX GET HIERARCHY
- LISTBOX Get information
- LISTBOX Get locked columns
- LISTBOX Get number of columns
- LISTBOX Get number of rows
- LISTBOX GET OBJECTS
- LISTBOX GET PRINT INFORMATION
- LISTBOX Get row color
- LISTBOX Get row font style
- LISTBOX Get row heightNew
- LISTBOX Get rows height
- LISTBOX Get static columns
- LISTBOX GET TABLE SOURCE
- LISTBOX INSERT COLUMN
- LISTBOX INSERT COLUMN FORMULA
- LISTBOX INSERT ROWS
- LISTBOX MOVE COLUMN
- LISTBOX MOVED COLUMN NUMBER
- LISTBOX MOVED ROW NUMBER
- LISTBOX SELECT BREAK
- LISTBOX SELECT ROW
- LISTBOX SET ARRAYUpd
- LISTBOX SET COLUMN FORMULA
- LISTBOX SET COLUMN WIDTH
- LISTBOX SET FOOTER CALCULATION
- LISTBOX SET FOOTERS HEIGHT
- LISTBOX SET GRID
- LISTBOX SET GRID COLOR
- LISTBOX SET HEADERS HEIGHT
- LISTBOX SET HIERARCHY
- LISTBOX SET LOCKED COLUMNS
- LISTBOX SET ROW COLOR
- LISTBOX SET ROW FONT STYLE
- LISTBOX SET ROW HEIGHTNew
- LISTBOX SET ROWS HEIGHT
- LISTBOX SET STATIC COLUMNS
- LISTBOX SET TABLE SOURCE
- LISTBOX SORT COLUMNS
LISTBOX SELECT BREAK
| LISTBOX SELECT BREAK ( {* ;} object ; row ; column {; action} ) | ||||||||
| Parameter | Type | Description | ||||||
| * | Operator |
|
If specified, object is an object name (string) If omitted, object is a variable | |||||
| object | Form object |
|
Object name (if * is specified) or Variable (if * is omitted) | |||||
| row | Longint |
|
Number of break row | |||||
| column | Longint |
|
Number of break column | |||||
| action | Longint |
|
Selection action | |||||
The LISTBOX SELECT BREAK command can be used to select break rows in the list box object designated by the object and * parameters. The list box must be displayed in hierarchical mode.
If you pass the optional * parameter, you indicate that the object parameter is an object name (string). If you do not pass this parameter, you indicate that the object parameter is a variable. In this case, you pass a variable reference instead of a string.
Break rows are added to represent the hierarchy but they do not correspond to existing rows in the array. To designate a break row to be selected, in the row and column parameters, you must pass the row and column number corresponding to the first occurrence in the corresponding array. These values are returned by the LISTBOX GET CELL POSITION command when the user has selected a break row. This principle is described in the “Management of break rows” paragraph of the Managing Hierarchical List Boxes section.
The action parameter, if it is passed, can set the selection action to be carried out when a selection of break rows already exists in the list box. You can pass a value or one of the following constants, found in the "List Box" theme:
| 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 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). |
Given the following arrays shown in a list box:
We want to select the "Normandy" break row:
$row:=Find in array(T2;"Normandy")
$column:=2
LISTBOX COLLAPSE(*;"MyListbox") `collapsing of all levels
LISTBOX SELECT BREAK(*;"MyListbox";$row;$column)Here is the result:
LISTBOX GET CELL POSITION
LISTBOX SELECT ROW
Managing Hierarchical List Boxes
Product: 4D
Theme: List Box
Number:
1117
Created: 4D v12
4D Language Reference ( 4D v16)
4D Language Reference ( 4D v16.1)
4D Language Reference ( 4D v16.2)
4D Language Reference ( 4D v16.3)
