Call the properties/methods on the Piped Object

Question

I am trying to understand how to pipe | an object and call the properties or methods on that.

Ex:
$a = Get-Item Registry::HKLM\SOFTWARE\WOW6432Node\Microsoft\Test\abc\
$a.GetSomething()  //calls the method
(Get-Item Registry::HKLM\SOFTWARE\WOW6432Node\Microsoft\Test\abc\).GetSomething() //calls the method

Can I pipe the output of the Get-Item and invoke properties/methods on it?

Get-Item Registry::HKLM\SOFTWARE\WOW6432Node\Microsoft\Test\abc\ | call GetSomething()

Answer 1

The short answer is no. You can't call a method like this using Pipeline. But you can surround your Get-Item invoke in parentheses and invoke it:

(Get-Item Registry::HKLM\SOFTWARE\WOW6432Node\Microsoft\Test\abc\).GetSomething()

---

If you don't want that, you could abuse the Select-Object cmdlet:

Get-Item Registry::HKLM\SOFTWARE\WOW6432Node\Microsoft\Test\abc\  | select { $_.GetSomething() }

Answer 2

It's not possible without writing something to make it so. That something would be pretty confusing.

Like this.

filter Invoke-Method {
    param(
        [String]$Method,

        [Object[]]$ArgumentList
    )

    $_.GetType().InvokeMember(
        $Method.Trim(),
        ([System.Reflection.BindingFlags]'InvokeMethod'),
        $null,
        $_,
        $ArgumentList
   )
}
"qwerty" | Invoke-Method Replace 'q', 'z'

Properties are easier in that there's already a command to do that:

(...).GetSomething() | Select-Object Property1, Property2