OpenFileDialog

When working on Windows, you always have the benefit of making use of integrated Windows features. One of these is OpenFileDialog, which comes with the PresentationFramework library. The following function demonstrates a simple usage of it to retrieve and return selected files within the GUI:

function Show-OpenFileDialog
{
    <#
    .SYNOPSIS
    Shows up an open file dialog.
    .EXAMPLE
    Show-OpenFileDialog
    #>
    [CmdletBinding()]
    param
    (
    [Parameter(Mandatory=$false, Position=0)]
    [System.String]
    $Title = 'Windows PowerShell',

    [Parameter(Mandatory=$false, Position=1)]
    [Object]
    $InitialDirectory = "$Home\Documents",

    [Parameter(Mandatory=$false, Position=2)]
    [System.String]
    $Filter = 'PowerShell-files|*.ps1|Everything|*.*'
    )
    Add-Type -AssemblyName PresentationFramework

    ...