Vista - invoking .net classes in powershell

I am trying to figure out why these lines work:

PS C:\> $test = [system.net.webrequest]
PS C:\> $test2 = [system.net.webclient]

and this one generares an error:

PS C:\> $testftp = [System.Net.WebRequestMethods.Ftp]
Unable to find type [System.Net.WebRequestMethods.Ftp]: make sure that
the assembly containing this type is loaded.
At line:1 char:45
+ $testftp = [System.Net.WebRequestMethods.Ftp] <<<<

$WC = NEW-OBJECT System.Net.WebClienT
$wc
$wc | gm


"Jim B" wrote:

> I am trying to figure out why these lines work:
>
> PS C:\> $test = [system.net.webrequest]
> PS C:\> $test2 = [system.net.webclient]
>
> and this one generares an error:
>
> PS C:\> $testftp = [System.Net.WebRequestMethods.Ftp]
> Unable to find type [System.Net.WebRequestMethods.Ftp]: make sure that
> the assembly containing this type is loaded.
> At line:1 char:45
> + $testftp = [System.Net.WebRequestMethods.Ftp] <<<<
>
>

"Jim B" <jim.butts@gmail.com> wrote in message
news:1167805768.483223.168000@s34g2000cwa.googlegroups.com...
>I am trying to figure out why these lines work:
>
> PS C:\> $test = [system.net.webrequest]
> PS C:\> $test2 = [system.net.webclient]
>
> and this one generares an error:
>
> PS C:\> $testftp = [System.Net.WebRequestMethods.Ftp]
> Unable to find type [System.Net.WebRequestMethods.Ftp]: make sure that
> the assembly containing this type is loaded.
> At line:1 char:45
> + $testftp = [System.Net.WebRequestMethods.Ftp] <<<<

"WebRequestMethods.Ftp" is derived from the class container
"WebRequestMethods", so the right syntax in PowerShell is
"WebRequestMethods+Ftp".

Hope that helps,
Jacques

This absolutely helps. Thank you. Is there someplace that the "+"
notation is documented? Was there some way for me to determine this on
my own?

On Jan 3, 11:27 am, "Jacques Barathon [MS]"
<jbara...@online.microsoft.com> wrote:
> "Jim B" <jim.bu...@gmail.com> wrote in messagenews:1167805768.483223.168000@s34g2000cwa.googlegroups.com...
>
> >I am trying to figure out why these lines work:
>
> > PS C:\> $test = [system.net.webrequest]
> > PS C:\> $test2 = [system.net.webclient]
>
> > and this one generares an error:
>
> > PS C:\> $testftp = [System.Net.WebRequestMethods.Ftp]
> > Unable to find type [System.Net.WebRequestMethods.Ftp]: make sure that
> > the assembly containing this type is loaded.
> > At line:1 char:45
> > + $testftp = [System.Net.WebRequestMethods.Ftp] <<<<"WebRequestMethods.Ftp" is derived from the class container
> "WebRequestMethods", so the right syntax in PowerShell is
> "WebRequestMethods+Ftp".
>
> Hope that helps,
> Jacques

"Jim B" <jim.butts@gmail.com> wrote in message
news:1167952249.416317.180550@v33g2000cwv.googlegroups.com...
> This absolutely helps. Thank you. Is there someplace that the "+"
> notation is documented? Was there some way for me to determine this on
> my own?

I am not sure about the documentation. As for determining it on your own, I
figured it out thanks to the tab expansion feature (I use MOW's version
called PowerTab so you may want to install it before reading further:
http://thepowershellguy.com/blogs/po.../default.aspx).

Now that you have installed PowerTab, you can explore .NET types from your
console:

PS> [system.net.web # press Tab
PS> [System.Net.WebRequest] # press Tab again
PS> [System.Net.WebRequestMethods] # here you can see that there is a
closing bracket, which means that there is no known subtype

From there, if you know that there is a sub-class called "FTP", there is a
high chance that the parent class is a generic container class and that you
have to use the "+" notation.

That's a completely empirical approach, probably not 100% reliable but it
has worked for me the rare times I was confronted to this issue.

Jacques