Switch function
Evaluates a list of expressions and returns a Variant value or an expression associated with the first expression in the list that is True.
Syntax
Switch(expr-1, value-1, [ expr-2, value-2…, [ expr-n, value-n ]])
The Switch function syntax has these parts:
| Part | Description |
|---|---|
| expr | Required. Variant expression that you want to evaluate. |
| value | Required. Value or expression to be returned if the corresponding expression is True. |
Remarks
The Switch function argument list consists of pairs of expressions and values. The expressions are evaluated from left to right, and the value associated with the first expression to evaluate to True is returned.
If the parts aren't properly paired, a run-time error occurs. For example, if expr-1 is True, Switch returns value-1. If expr-1 is False, but expr-2 is True, Switch returns value-2, and so on.
Switch returns a Null value if:
None of the expressions is True.
The first True expression has a corresponding value that is Null.
Switch evaluates all of the expressions, even though it returns only one of them. For this reason, you should watch for undesirable side effects. For example, if the evaluation of any expression results in a division by zero error, an error occurs.
Example
This example uses the Switch function to return the name of a language that matches the name of a city.
Function MatchUp(CityName As String)
Matchup = Switch(CityName = "London", "English", CityName _
= "Rome", "Italian", CityName = "Paris", "French")
End Function
See also
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