Mastering Windows PowerShell Scripting - Third Edition

About ValueFromPipelineByPropertyName

ValueFromPipelineByPropertyName attempts to fill a parameter from the property of an object in the input pipeline. When filling a value by property name, the name and type of the property is important, but not the object that implements the property.

For example, a function might be created to accept a string value from a Name property:

function Get-Name {    [CmdletBinding()]    param (        [Parameter(Mandatory, ValueFromPipelineByPropertyName)]        [String]$Name    )    process {        $Name    }}

Any command that returns an object which contains a Name property in a string is acceptable input for this function. Additional parameters might be defined, which would further restrict the input object type, assuming the new properties ...