[Solved] What is wrong with this parameter validation? function Set-Name { param( [ValidateLength(3,10)] [int]$Name ) Write-Output $Name } | PowerShell

PowerShell - Scripting Best Practices

What is wrong with this parameter validation?

function Set-Name {
  param(
    [ValidateLength(3,10)]
    [int]$Name
  )
  Write-Output $Name
}

AValidateLength requires three arguments

BValidateLength cannot be applied to integers

CMissing ValidateNotNullOrEmpty attribute

DParameter name is invalid

Step-by-Step Solution

Solution:

Step 1: Understand ValidateLength usage
[ValidateLength()] applies only to strings to check their length.
Step 2: Check parameter type
Parameter $Name is typed as [int], so applying ValidateLength causes an error.
Final Answer:
ValidateLength cannot be applied to integers -> Option B
Quick Check:
ValidateLength works only on strings [OK]

Quick Trick: Use ValidateLength only with string parameters [OK]

Common Mistakes:

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What is wrong with this parameter validation?