VBA Select Case: une alternative de multiples If Else Si états
Lorsque vous avez de nombreuses conditions à vérifier ou que vous souhaitez effectuer une opération sur la base du choix de l’utilisateur, vous pouvez utiliser des instructions If Else If. Mais ils sont gênants lorsqu’il s’agit de conditions multiples. Dans ce cas, la meilleure solution dans Excel VBA est la méthode Select Case *.
Qu’est-ce qu’une instruction Select Case dans VBA?
Les instructions Select Case dans VBA sont utiles lorsque vous avez plusieurs conditions à vérifier. Ils sont comme des instructions switch dans d’autres langages de programmation. Il vérifie la variable donnée et exécute le cas correspondant.
Syntaxe de Select Case dans Excel VBA
Select Case variable case Condition1 result1 case Condition2 Condition2
cas ConditionN
résultatN
[cas sinon
resultElse]
Select Case:Here Select Case* is a keyword to start the case check. Variable: Variable is any variable that you want to check. Case: from the next line, we start checking the conditions with variables. You can have as many conditions as you want. We can check any condition with the keyword case. The condition can be a logical statement or a straight value of the Selected Variable. It will always result in true-false value. These all are valid statements:
Sélectionnez la région du cas
«en utilisant une valeur directe
Cas « Central »
Plage (« D1 »). Valeur = région
‘en utilisant une instruction is
Case Is = « Central »
Plage (« D1 »). Valeur = région
Fin Sélectionnez
With is you can put arithmetic logical operators to check if the Case is equal to(=), greater than(>), less than(<), etc. You can use the comma (",") to do one operation on multiple conditions (like or operator).
Case Is = « Ouest », « Nord », « Sud »
Plage (« D1 »). Valeur = région
You can also use To operator to check among large ranges.
Cas 1 à 40
Grade = « F »
Cas 41 à 60
Grade = « C »
Cas 61 à 80
Grade = « B »
Cas 81 à 100
Note = « A »
The Case Else statement is optional. You can use it to do something by default if none of the case match. Like showing a message that the choice is invalid or something.
Cas Else
MsgBox « Option non valide »
Now that we know about the basics of the Select Case, let's have an example. === Example: Create A Grading Function UsingVBA Select Case We need to create a function that checks the supplied value and returns the grades according to below rules: * If >41, Grade="F" * If between 41 and 60, Grade="C" * If between 61 and 80, Grade="B" * If between 81 and 100, Grade="A" * else #VALUE! error. We will use the Select Case as a Switch statement of VBA here. The code for the custom function will be:
Fonction GRADES (num As Double)
Sélectionnez le numéro de cas
Le cas est <41
GRADES = « F »
Cas 41 à 60
GRADES = « C »
Cas 61 à 80
GRADES = « B »
Cas 81 à 100
GRADES = « A »
Cas Else
GRADES = « #VALUE! »
Fin Sélectionnez
Fonction de fin
image:https://www.office-skill.site/images/wp-content-uploads-2020-01-Capture-43.jpg[image,width=658,height=282] Now if you use this function on the sheet, it will return the grades easily. image:https://www.office-skill.site/images/wp-content-uploads-2020-01-Capture-42.jpg[image,width=369,height=288] So yeah guys, this is how the Select Case (switch) statement is used in Excel VBA to check multiple conditions. Instead of multiple If Else If statement we use the Select Case statement to switch results. If you have any doubts regarding this article or any other Excel/VBA related articles, ask in the comments section below. Download the working file below: image:https://www.office-skill.site/images/wp-content-uploads-2015-06-image-481.png[image 48,width=128,height=49] === Related Articles: `link:/office-skill-fr/using-loops-using-loops-in-vba-in-microsoft-excel[Using Loop in VBA in Microsoft Excel]`| The loops in VBA enable us to do a similar task over and over without repetition of code. There are 3 types of loops in Excel VBA. `link:/office-skill-fr/using-loops-for-loops-with-7-examples[7 Examples of For Loops in Microsoft Excel VBA]`| The 7 examples of for loop can make your automation life easy. Let's start with simple for loop. === Popular Articles: `link:/office-skill-fr/keyboard-formula-shortcuts-50-excel-shortcuts-to-increase-your-productivity[50 Excel Shortcuts to Increase Your Productivity]` | Get faster at your task. These 50 shortcuts will make you work even faster on Excel. `link:/office-skill-fr/formulas-and-functions-introduction-of-vlookup-function[The VLOOKUP Function in Excel]` | This is one of the most used and popular functions of excel that is used to lookup value from different ranges and sheets. `link:/office-skill-fr/tips-countif-in-microsoft-excel[COUNTIF in Excel 2016]` | Count values with conditions using this amazing function. You don't need filter your data to count specific value. Countif function is essential to prepare your dashboard. `link:/office-skill-fr/excel-formula-and-function-excel-sumif-function[How to Use SUMIF Function in Excel]` | This is another dashboard essential function. This helps you sum up values on specific conditions.