VBA Select Case: una alternativa de múltiple Si else if
Cuando tenga que comprobar muchas condiciones o desee realizar alguna operación en función de la elección del usuario, puede utilizar las declaraciones If Else If. Pero son problemáticos cuando se trata de múltiples afecciones. En ese caso, la mejor solución en Excel VBA es el método Select Case *.
¿Qué es una instrucción Select Case en VBA?
Las declaraciones de Select Case en VBA son útiles cuando tiene varias condiciones para verificar. Son como declaraciones de cambio en otros lenguajes de programación. Comprueba la variable dada y ejecuta el caso coincidente.
Sintaxis de Select Case en Excel VBA
Select Case variable case Condition1 result1 case Condition2 Condition2
caso ConditionN
resultadoN
[caso más
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:
Seleccione la región del caso
‘utilizando un valor directo
Caso «Central»
Rango («D1»). Valor = región
‘usando una declaración is
Caso es = «Central»
Rango («D1»). Valor = región
Finalizar Seleccionar
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).
Caso es = «Oeste», «Norte», «Sur»
Rango («D1»). Valor = región
You can also use To operator to check among large ranges.
Caso 1 a 40
Grado = «F»
Caso 41 a 60
Grado = «C»
Caso 61 a 80
Grado = «B»
Caso 81 a 100
Grado = «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.
Caso demás
MsgBox «Opción no válida»
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:
Función GRADES (num As Double)
Seleccione Número de caso
El caso es <41
GRADOS = «F»
Caso 41 a 60
GRADOS = «C»
Caso 61 a 80
GRADOS = «B»
Caso 81 a 100
GRADOS = «A»
Caso demás
GRADOS = «# ¡VALOR!»
Finalizar Seleccionar
Función final
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-es/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-es/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-es/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-es/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-es/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-es/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.