Powershell - browse for folder - a better way to do this? - winforms

Question

I am working with a script that prompts the user to select a folder or folders. The code follows.
$wrkfolder = "C:\MyPC\WorkingFolder" #workfolder starting location
$app = New-Object -ComObject shell.Application
# Display Browse for File to select a folder or ALL folders
$folder = $app.BrowseForFolder(0,"Select Folder -- Cancel to select ALL",0,$wrkfolder)
if ($folder.self.path -ne "") {
$fldr = $folder.Self.Path
$fldrName = $folder.Self.Name
}
Currently, that prompts the user with a folder browse input dialog, and if the user selects CANCEL, it will select all the folders in the $wrkfolder. Or, if they select a single folder, it will return that folder. If the user closes the dialog, it returns $null (which is the same thing as selecting Cancel).
I'd like for it the script to allow the user to have the option to select a folder, select multiple folders, select ALL folders, and for the Cancel to actually close the dialog & return a value that I could then exit the script.
Without re-inventing the wheel on this form, is there an easy way to prompt the user with a browse input folder dialog & allow them to select 1+ folders, all folders or to cancel the script? There has to be a better way to do this than what I've got thus far.

Answer 1

This won't help you unless you're running the PowerShell V3 beta but for future reference, you can use the Out-GridView's new PassThru parameter e.g.:
Get-ChildItem -Directory | Out-GridView -PassThru | ...
Out-GridView allows multi-selection and you can also cancel the whole pipeline operation via the cancel button.