[Solved] Identify the error in this parameter declaration:param( [Parameter(Mandatory)] [ValidateSet('On','Off')] $Switch ) | PowerShell

PowerShell - Functions

Identify the error in this parameter declaration:

param(
  [Parameter(Mandatory)]
  [ValidateSet('On','Off')]
  $Switch
)

AParameter attribute cannot be used with ValidateSet

BValidateSet values must be numeric

CMandatory attribute missing =true or $true

DParameter name must be capitalized

Step-by-Step Solution

Solution:

Step 1: Check Mandatory attribute syntax
The Mandatory attribute requires an explicit value like = $true. Just Mandatory is invalid.
Step 2: Validate other options
ValidateSet accepts strings, Parameter and ValidateSet can be combined, and parameter names are case-insensitive.
Final Answer:
Mandatory attribute missing =true or $true -> Option C
Quick Check:
Mandatory needs explicit true value [OK]

Quick Trick: Always write Mandatory=$true, not just Mandatory [OK]

Common Mistakes:

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