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  • List Boxes containing more than 10 000 elements
  • Visibility/Invisibility of elements in a List Box or Combo Box control
  • Equivalence
  • Sorted/Unsorted List Box control
  • Miscellaneous
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Stored procedures
Adds an element into:
  • a memory List Box control,
  • a memory Combo Box control.
Remarks:
  • To add an element at a specific position, use ListInsert.
  • ListAdd can be used on the single-selection and multi-selection List Box controls.
  • To add an image into a standard List Box control, use gImage.
  • To add elements into a Combo Box control found in a container column of a Table control, use Content.
Versions 15 and later
Android This function is now available for Android applications.
New in version 15
Android This function is now available for Android applications.
Android This function is now available for Android applications.
Versions 17 and later
iPhone/iPad This function is now available for iPhone/iPad applications.
New in version 17
iPhone/iPad This function is now available for iPhone/iPad applications.
iPhone/iPad This function is now available for iPhone/iPad applications.
Versions 21 and later
Universal Windows 10 App This function is now available in Universal Windows 10 App mode.
New in version 21
Universal Windows 10 App This function is now available in Universal Windows 10 App mode.
Universal Windows 10 App This function is now available in Universal Windows 10 App mode.
Example
// Ajout de "Dubois" dans le champ "LISTE_ListeClient"
ListAdd(LISTE_ListeClient, "Dubois")
Universal Windows 10 AppAndroid
// Ajout de "Dubois" et "Dupont" dans le champ Liste "LISTE_ListeClient"
ListAdd(LISTE_ListeClient, "Dubois" + CR + "Dupont")
Universal Windows 10 AppAndroid
// La combo "COMBO_Civilité" affiche les titres de civilité:
// "Monsieur", "Madame" et "Mademoiselle".
// Un entier représentant une civilité sera retourné au langage.
ListAdd(COMBO_Civilité, "Monsieur" + gStoredValue("1"))
Syntax
<Result> = ListAdd(<Control to use> [, <Element> [, <Path of image to display>]])
<Result>: Boolean
  • True if the element was added,
  • False otherwise.
<Control to use>: Control name
Name of the control to be used:
  • Memory List Box,
  • Memory listview,
  • Memory Combo Box.
If this parameter corresponds to an empty string (""), the element is added to the List Box control (or Combo Box) to which the current event belongs.
<Element>: Optional character string
Element that will be added into the specified control. If this parameter is not specified, an empty row is added into the List Box or Combo Box control.
This parameter can contain:
  • Carriage Return characters (CR) to add several elements.
  • tabs (TAB) to obtain a multi-element List Box control (see Notes).
  • the gStoredValue function to indicate the value to be returned when the element is selected.
Android The Carriage Return characters (CR) are supported while the tabulations (TAB) are not supported.
<Path of image to display>: Optional character string
Name and path of image that will be added into a ListView control. You also have the ability to use an image memo item.
This parameter is taken into account for ListView controls displayed in ListView mode only.
If this parameter is not specified, the default image (defined in the "Details" tab in the description window of control) will be used.
Universal Windows 10 AppAndroidiPhone/iPad This parameter is not available.
Remarks

List Boxes containing more than 10 000 elements

The maximum number of elements found in a List Box control is limited by the available memory (theoretical maximum: 2 billion rows). Nevertheless, filling a List Box control with an important number of elements (more than 10 000) affects performance
To add many elements to a List Box control, it is recommended to use a browsing List Box control (i.e., a list directly linked to an HFSQL data file).
AndroidiPhone/iPad

Visibility/Invisibility of elements in a List Box or Combo Box control

To make an element invisible in a List Box or Combo Box control, use gStoredValue.
Universal Windows 10 AppAndroidiPhone/iPad

Equivalence

The two following syntaxes are equivalent:
ListeAjoute(<Nom du champ>, [<Élément>])
and
<Nom du champ>[Indice] = <Élément>
Universal Windows 10 AppAndroidiPhone/iPad

Sorted/Unsorted List Box control

  • If the List Box control is sorted, the new element is inserted according to the sort order.
  • If the List Box control is not sorted, the new element is added at the end of the list.
The control type (sorted or not) is chosen during the control description ("Details" tab).

Use ListAdd rather than ListInsert to add an element to a sorted List Box control.

Miscellaneous

  • To add elements into a Table control, use TableAdd.
  • ListAdd can be used on:
    • a column of type"Combo Box" in a Table control.
    • a "Table" Combo Box control.
Component: wd270obj.dll
Minimum version required
  • Version 9
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