ListCount (Function)

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Limitations
List Box control based on a data file
Last element
Miscellaneous

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ListCount (Function)

In french: ListeOccurrence

Returns the number of elements in a List Box, ListView or Combo Box control.

Note: The ListCount function can be used on both:

List Box controls based on a data file or populated programmatically,
single-selection or multi-selection List Box controls.

Example

// Nombre d'éléments présents dans le champ "LISTE_ListeClient"
ResNombreElément = ListCount(LISTE_ListeClient)

Syntax

<Result> = ListCount(<List Box control>)

<Result>: Integer

Number of elements (rows) found in the specified control.

<List Box control>: Control name

Name of the List Box or Combo Box control to be used. If this parameter corresponds to an empty string (""), the control to which the current process belongs will be used.
The name of the List Box (or Combo Box) control to use must be specified.

Remarks

Limitations

If the specified List Box or Combo Box control is linked to a data file that contains more than 2,147,483,647 records, the returned value is truncated to this value.

List Box control based on a data file

For a List Box control based on a data file, ListCount returns:

the total number of records found in the linked file if no filter was defined.
the number of records matching the filter if a filter was defined.
the number of records found in the query linked to the control.

The end of initialization code of control is run once the total is calculated.

Caution: The time required to calculate the number of records may be long.

Last element

To position on the last element of List Box control, use the following syntax:

ListeSelectPlus(<Champ Liste>, <Champ Liste>.Occurrence)

<Champ Liste> = <Champ Liste>.Occurrence

<Champ Liste> = ListeOccurrence(<Champ Liste>)

Miscellaneous

To find out the number of rows in a Table control, use TableCount.
ListCount can be used on a "Combo Box" table column.

Component: wd300obj.dll