PowerShell - Functions
You want to create an advanced function that accepts pipeline input by property name and supports ShouldProcess. Which of these parameter declarations is correct?
You want to create an advanced function that accepts pipeline input by property name and supports ShouldProcess. Which of these parameter declarations is correct?
hard📝 Application Q8 of 15
Step-by-Step Solution
Solution:
Step 1: Understand pipeline input attributes
ValueFromPipelineByPropertyName=$true allows the parameter to accept pipeline input by matching property names.Step 2: Check parameter type and attribute
ComputerName is typically a string. [Parameter(ValueFromPipelineByPropertyName=$true)] [string]$ComputerName correctly uses string type and ValueFromPipelineByPropertyName=$true.Step 3: Evaluate other options
[Parameter(ValueFromPipeline=$true)] [int]$ComputerName uses ValueFromPipeline=$true but type int is unlikely for ComputerName. [Parameter(ValueFromPipelineByPropertyName=$false)] [string]$ComputerName disables pipeline input. [Parameter(ValueFromPipelineByPropertyName=$true)] [int]$ComputerName uses int type incorrectly.Final Answer:
[Parameter(ValueFromPipelineByPropertyName=$true)] [string]$ComputerName -> Option AQuick Check:
Pipeline input by property name needs matching property and correct type [OK]
Quick Trick: Use ValueFromPipelineByPropertyName for property name pipeline input [OK]
Common Mistakes:
- Using wrong parameter type for pipeline input
- Confusing ValueFromPipeline and ValueFromPipelineByPropertyName
- Disabling pipeline input accidentally
Master "Functions" in PowerShell
Want More Practice?
15+ quiz questions · All difficulty levels · Free
Free Signup - Practice All QuestionsMore PowerShell Quizzes