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  • Quels sont les différents types de collections intégrées à Excel VBA ?

    Il est facile d’y accéder et de les manipuler, même si la collection contient un grand nombre d’éléments. Il existe déjà des collections intégrées à Excel VBA. La collection Worksheets (Feuilles) en est un exemple. Pour chaque feuille de calcul d’un classeur, il existe un élément dans la collection Worksheets.

  • Comment recréer une collection à l'aide du code VBA ?

    Si le classeur est rouvert, la collection doit être recréée à l’aide du code VBA. Si vous voulez qu’une collection soit disponible dans l’entièreté de votre module de code, vous devez déclarer l’objet collection dans la section « déclarations » en haut de la fenêtre du module

  • Comment créer une collection en VBA ?

    Un objet collection simple peut être créé en VBA à l’aide du code suivant : Sub CréerCollection() Dim MaCollection As New Collection MaCollection.Add "Élément 1" MaCollection.Add "Élément 2" MaCollection.Add "Élément 3" End Sub

  • Comment écrire un code VBA dans Excel ?

    Pour écrire du code VBA dans Excel, ouvrez l’éditeur VBA (ALT + F11). Tapez « Sub HelloWorld », appuyez sur Entrée et vous avez créé une macro! OU Copiez et collez l’une des procédures énumérées sur cette page dans la fenêtre de code. Qu’est-ce que Excel VBA? VBA est le langage de programmation utilisé pour automatiser Excel.

Introduction

Collections are a very important part of VBA. If you have used the language for any length of time then you will have used Collections. The most common ones are the Workbooks, Worksheets, Range and Cells collections. The following code shows some examples of using the VBA Workbookscollection: Collections are similar to arrays so it is important to

Collections Webinar

If you are a member of the website, click on the image below to view the webinar. (Note: Website members have access to the full webinar archive.) excelmacromastery.com

What Is A Collection?

Collections and arrays are both used to group variables. They both store a set of similar items e.g. a list of student marks or country names. Using a collection or array allows you to quickly and easily manipulate a large number of items. In my post on arrays,I explained in simple terms what arrays are and why they are so useful. I will briefly re

Collections vs arrays?

We have looked at what collections and arrays have in common. So what is the difference and why use one over the other? The main difference is that with an array you normally set the size once. This means that you know the size before you start adding elements. Let me explain this with an example. excelmacromastery.com

How to Create A Collection

You can declare and create in one line as the following code does As you can see you don’t need to specify the size. Once your collection has been created you can easily add items to it. You can also declare and then create the collection if and when you need it. excelmacromastery.com

Removing All Items from A Collection

The Collection does not have a RemoveAllfunction. However to remove all items from a collection you can simply set it to a new collection: VBA will delete the collection because we are no longer referencing it. When we remove all items we generally want to use the collection again so we are effectively killing two birds with one stone by using this

Adding Items to A Collection

It is simple to add items to a collection. You use the add property followed by the value you wish to add You can have any basic type in a collection such as a Double When you add items in this manner they are added to the next available index. In the fruit example, Apple is added to position 1 and Pear to position 2. excelmacromastery.com

Accessing Items of A Collection

To Access the items of a collection you simply use the index. As we saw the index is the position of the item in the collection based on the order they were added. The order can also be set using the Before or Afterparameter. You can also use the ItemProperty to access an item in the collection. It is the default method of the collection so the fol

Adding Different Types

You can also add different types of items to a collection. This is seldom needed. In VBA the Sheetscollections contains sheets of type Worksheet and of type Chart. (To create a Chart sheet simple right click on any Chart, select Move and select the radio button for New sheet). The following code displays the type and name of all the sheets in the c

Adding Items Using A Key

You can also add items using a key as the next example shows: I included the parameter names to make the above example clear. However you don’t need to do this. Just remember the key is the second parameter and must be a unique string. The following code shows a second example of using keys: Using keys is has three advantages: 1. If the order chang

VBA

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Excel VBA Collections: How to Read between Collections and Worksheets (3/5)

Excel VBA Collections: How to Read between Collections and Worksheets (3/5)

Excel VBA: Using Class Modules with Collections (5/5)

Excel VBA: Using Class Modules with Collections (5/5)

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Introduction

Collections are a very important part of VBA. If you have used the language for any length of time then you will have used Collections. The most common ones are the Workbooks, Worksheets, Range and Cells collections. The following code shows some examples of using the VBA Workbookscollection: Collections are similar to arrays so it is important to ...

Collections Webinar

If you are a member of the website, click on the image below to view the webinar. (Note: Website members have access to the full webinar archive.)

Collections vs arrays?

We have looked at what collections and arrays have in common. So what is the difference and why use one over the other? The main difference is that with an array you normally set the size once. This means that you know the size before you start adding elements. Let me explain this with an example.

How to Create A Collection

You can declare and create in one line as the following code does As you can see you don’t need to specify the size. Once your collection has been created you can easily add items to it. You can also declare and then create the collection if and when you need it.

Removing All Items from A Collection

The Collection does not have a RemoveAllfunction. However to remove all items from a collection you can simply set it to a new collection: VBA will delete the collection because we are no longer referencing it. When we remove all items we generally want to use the collection again so we are effectively killing two birds with one stone by using this...

Adding Items to A Collection

It is simple to add items to a collection. You use the add property followed by the value you wish to add You can have any basic type in a collection such as a Double When you add items in this manner they are added to the next available index. In the fruit example, Apple is added to position 1 and Pear to position 2.


What is a VBA collection?

What is the difference between VBA collection and macro enable Excel?

What is a collection in Excel?

How to traverse a VBA collection?






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