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Menu Principal / Informatiques / Bureautique / Microsoft Word / Utiliser les variables tableaux en VBA Excel


Utiliser les variables tableaux en VBA Excel


Les variables tableaux servent à stocker et manipuler des groupes de données du même type.
Les éléments du tableau sont indexés séquentiellement. Chaque élément est identifiable par un numéro d'indice. Les modifications apportées à une donnée du tableau n'affectent pas les autres éléments.
Créer un tableau de taille X revient en quelque sort à déclarer X variables différentes, en une fois.


Un tableau est constitué d'une ou plusieurs dimensions. Le nombre d'éléments pour chaque dimension est défini par des limites inférieures et supérieures. La taille et les dimensions peuvent être fixes (statiques) ou libres (dynamiques).

Seuls les tableaux dynamiques peuvent modifier leur taille et leur dimension en cours de procédure.


Passer par un tableau n'est pas une obligation. Toutefois, cette méthode permet des gains de temps significatifs, notamment pour la manipulation des grands groupes de données. Sur les grandes collections, il convient d'éviter l'énumération qui est très lente.








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