Mastering Windows PowerShell Scripting - Third Edition

ValueFromPipelineByPropertyName and parameter aliases

We have not looked at parameter aliases yet. Any parameter may be given one or more aliases using the Alias attribute, as shown in the following example:

function Get-InputObject {    [CmdletBinding()]    param (        [Parameter(ValueFromPipelineByPropertyName)]        [Alias('First', 'Second', 'Third')]        $InputObject    )}

The alias name is considered when determining whether a property on an input object is suitable to fill a parameter when filling a parameter by property name.

One of the more common uses of this is to provide support for a Path parameter via a pipeline from Get-Item or Get-ChildItem. For example, the following pattern might be used to expose a Path parameter. This is used in the short helper ...