param
(
    [String]$Path,
    [boolean]$OutGridView
)

Function Get-FolderSize($Path){
$c=0
Get-ChildItem $Path -Recurse | % {if($_.Mode -ne "d-----"){$c += (Get-Item ($_).Fullname).Length}}
("{0:N2}" -f ($c / 1024 / 1024 ))
}


$outarray = @()
$full = (Get-ChildItem $path | ? {$_.Mode -like "d*"}).count
$count = 0


foreach($subitem in Get-ChildItem $path | ? {$_.Mode -like "d*"}) {
$size = Get-FolderSize $subitem.FullName
$obj = New-Object psobject
$obj | Add-Member -MemberType NoteProperty -Name "Folder" -Value $subitem.FullName
$obj | Add-Member -MemberType NoteProperty -Name "Size" -Value ($size.ToString() + "MB")
Write-Progress -Activity $subitem.Name -PercentComplete (($count / $full)*100)
$count++
$outarray += $obj
}

if($OutGridView)
{
    $outarray | Out-GridView
}
else
{
    $outarray | format-table Folder,@{n='Size';e={$_.Size};align='right'}
}