gLink (Function)

ONLINE HELP
WINDEV, WEBDEV AND WINDEV MOBILE

Version:

Home | Sign in | English

This content has been translated automatically. Click here to view the French version.

Help / WLanguage / WLanguage functions / Controls, pages and windows / Graphic string functions

Where to use gLink
Added value
Case sensitivity
Auto-filled combo boxes
Retrieved element
Scheduler control
Special case: Combo Box control or Combo in a Table control field

WINDEV

WEBDEV

WINDEV Mobile

Others

See also

gLink (Function)

In french: gLien

Warning
From version 27, this function is kept for backward compatibility. It is recommended to use gStoredValue.

Adds an "invisible" value to an element in a List Box, Combo Box or Scheduler control. This value will be the stored value when the control element is selected by the user.

Remarks:

To get the stored value associated with an element of the control, use the StoredValue property.
To retrieve the value defined by gLink:
- use the gLinkActivate function.
- check "Return value specified with gStoredValue" ("Details" tab of the control description).
In this case, the control will directly return the value of gLink that corresponds to the selected option.

Example

// Code du champ Bouton permettant de remplir le champ Combo
// ----------------------------------------------
// 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" + gLink("1"))
// Seule la chaîne de caractères "1" est retournée au langage.
// Cette chaîne de caractères retournée n'est pas affichée dans le champ Combo.

// Code du champ Bouton permettant de connaître la valeur de gLien
// -----------------------------------------------------------
// Code permettant d'obtenir la valeur du gLien de l'option sélectionnée 
Info(COMBO_Civilité[COMBO_Civilité].ValeurMémorisée)
// Affiche "1" dans notre exemple.

Syntax

<Result> = gLink(<String to return>)

<Result>: Character string

Control string that must be used in ListAdd, ListInsert or ListModify.

<String to return>: Character string

Text value to return. Only this string will be returned to the language. This string will not be displayed in the row.

Remarks

Where to use gLink

gLink can be called anywhere in the row to be added.

For example:

ListAdd(COMBO_COMBO1, gLink("1") + "Monsieur")
// ou
ListAdd(COMBO_COMBO1, "Monsieur" + gLink("1"))

Added value

Values added with gLink are not taken into account for sort operations and keyboard shortcuts.

If multiple values are added to an element of a list box with gLink, only the first value will be returned.

ListAdd(LISTE_LISTE1, "MonElément" + gLink("Lien1") + gLink("Lien2"))

In this example, only the "Link1" value will be returned.

ListSeek takes into account the values added by gLink.

Case sensitivity

gLink is case-insensitive.

Therefore, the following code:

ListAdd(LISTE_LISTE1, "MonElément" + gLink("AAA"))

will be equivalent to:

ListAdd(LISTE_LISTE1, "MonElément" + gLink("aaa"))

Auto-filled combo boxes

gLink is used to manage "Auto-filled Combo Box" controls.

Retrieved element

When an element is retrieved from a List Box or Combo Box control, the priority order is as follows:

Values added by gLink.
Values added by gToRetrieve.

To get the stored value associated with an element of the control, use the StoredValue property.

Scheduler control

If the resources in the schedule have been created with SchedulerAddResource using gLink, the name of the resource obtained with the SelectedResource property will correspond to the value specified in the gLink function for this resource.

Example:

// Ajoute une ressource (ici une salle de réunion) dans le champ Planning
// Reunion est le fichier de données qui décrit les différentes salles disponibles
SchedulerAddResource(PLN_OccupationSalles, Reunion.Nom + gLink(Reunion.IDReunion))

...

// Code de clic sur le bouton BTN_NOUVEAU_RDV
MonRDV is Appointment
IF PLN_OccupationSalles.RessourceSélectionnée = "" THEN
        RETURN
END

MonRDV.StartDate = PLN_OccupationSalles.DateDébut
MonRDV.EndDate = PLN_OccupationSalles.DateFin
MonRDV.Resource = PLN_OccupationSalles.RessourceSélectionnée
// Le nom de la ressource correspond à la valeur précisée 
// dans la fonction gLien pour cette ressource

Special case: Combo Box control or Combo in a Table control field

If gLink must return an empty string (""), the result will be different if the control used is a Combo Box control or a Combo Box column in a Table control.

The following code is used:

ListAdd(COMBO, "MyElement" + gLink(""))

the value retrieved will be:

an empty string ("") in the case of a Combo Box control,
0 (zero) in the case of a Combo Box column in a Table control.

To use the same code to retrieve the value of gLink for a Combo Box control and a Combo Box column, it is recommended to use a Combo Box control in a container column in the Table control.

Component: wd300obj.dll