Get Parameters for Methods in PowerShell

Question

Is there a way to get the parameters for a Method MemberType when using Get-Member?

Example:

Get-Process | Get-Member -MemberType Method

What I need from this example is the parameters and parameter types of each member in the list.

The purpose of this is to get the members, parameters, and parameter types of a COM+ object I have to create documentation for. So an example can't be .net specific.

I will be piping the member and parameter info into a razor template to generate the appropriate html.

Edit: A better example would be this...

$comObj = New-Object -ComObject COMAdmin.COMAdminCatalog
$comObj | Get-Member -MemberType Method

In this example I need to get the parameter names (if there are any) for each method returned.

Answer 1

Get-Member is meant more for exploring .NET types than PowerShell Commands. For a simple "view" of a command's parameters try this:

Get-Command Get-Process -Syntax

For details on the parameters try this:

Get-Command Get-Process | Select -Expand ParameterSets

If you're looking for more detail on a .NET type member's parameters then try this:

C:\PS> Get-Process | Get-Member -Name WaitForExit

   TypeName: System.Diagnostics.Process

Name        MemberType Definition
----        ---------- ----------
WaitForExit Method     bool WaitForExit(int milliseconds), void WaitForExit()

As for COM objects, that is likely to be a bit more hit or miss. PowerShell doesn't always get type metadata for COM objects. BTW I do get parameter info (the parameter types) for the COM object you list in your question:

C:\PS> $comObj = New-Object -ComObject COMAdmin.COMAdminCatalog
C:\PS> $comObj | gm QueryApplicationFile


   TypeName: System.__ComObject#{790c6e0b-9194-4cc9-9426-a48a63185696}

Name                 MemberType Definition
----                 ---------- ----------
QueryApplicationFile Method     void QueryApplicationFile (string, string, string, bool, bool, SAFEARRAY(Variant))

I'm afraid that is all the info PowerShell will give you in this case.