`Select-PSObject` from variable?

[FH-Inway]

Select-PSFObject can add properties from objects other than the object it is selecting from like e.g. this:

$myObject = @{
  Id = "Test"
}

$myOtherObject = @{
  Name = "Test"
  Path = "C:\Temp\test.txt"
}

$myObject | Select-PSFObject 'Id as Name', 'Path from myOtherObject WHERE Name = Id'

I'm wondering if it is also possible to add a property based on a variable? I tried several variations of the following, but never got the expected result.

$myObject = @{
  Id = "Test"
}

$myVariable = "C:\Temp\test.txt"

$myObject | Select-PSFObject 'Id as Name', 'Path from myVariable'

Asked differently, is it possible to express the following two variations in a more succinct and readable way?

$myObject | Select-PSFObject 'Id as Name', @{Name = "Path"; Expression = { [string]$myVariable } }

# or

$myOtherObject = @{
  Path = $myVariable
}

$myObject | Select-PSFObject 'Id as Name', 'Path from myOtherObject'

[FriedrichWeinmann]

It can't do that yet
But it definitely should be able to do that, so in the imminent future it will be able to :)

Thanks for the great suggestion!

[FH-Inway]

More out of curiosity about how it works behind the scenes, I took a stab at this: FH-Inway@91b01c7

Needs obviously some work, but hopefully I'm on the right track here.

Used the following tests (as seemed to make more sense to me than from).

$myObject = @{
  Id = "Test"
}

$myVariable = "C:\Temp\test.txt"

$myObject | Select-PSFObject 'Id as Name', '$myVariable as Path'

<#
Name Path
---- ----
Test C:\Temp\test.txt
#>

Just the variable also works and uses the variable name as property name.

$myObject = @{
  Id = "Test"
}

$myVariable = "C:\Temp\test.txt"

$myObject | Select-PSFObject 'Id as Name', '$myVariable'

<#
Name myVariable       
---- ----------
Test C:\Temp\test.txt
#>

[FH-Inway]

Poked a bit more and created #664 to enable a more targeted discussion of the changes.

Let me know if this is of use to you and feel free to ignore. I'm mainly working on this to satisfy my curiosity and learn something.