Create Custom Intellisense for AD cmdlets with SearchBase parameter using TabExpansion++ Module

Set-ADSearchBase-Intellisense.ps1

<#

Author: I.C.A. Strachan
Version:
Version History:

Purpose: Custom Intellisense completion for AD cmdlets with SearchBase parameter
         ActiveDirectory & TabExpansion++ module is required.

         Link to Trevor Sullivan's video demonstration: https://goo.gl/0TdWuv

#>

#region Get AD cmdlets with SearchBase parameter
$ADCmdlestWithSearchBase = Get-Command -Module ActiveDirectory |
ForEach-Object{
   $psItem.Name |
   Where-Object {
        (Get-Command $psItem).ParameterSets.Parameters.Name -eq 'SearchBase'
   }
}
#endregion

#region Configure custom intellisense for AD cmdlets with SearchBase
$sbADSearchBase= {
   param($commandName, $parameterName, $wordToComplete, $commandAst, $fakeBoundParameter)

   $ADPaths = ActiveDirectory\Get-ADOrganizationalUnit -filter *

   foreach ($ADPath in $ADPaths){
      $completionResult =@{
         CompletionText       = $ADPath.DistinguishedName
         ToolTip              = ('The organization unit DistinguishedName {0}' -f $ADPath.DistinguishedName)
         ListItemText         = $ADPath.Name
         CompletionResultType = 'ParameterValue'
      }

      New-CompletionResult @completionResult
   }
}

$tabExpansion =  @{
   CommandName   = $ADCmdlestWithSearchBase
   ParameterName = 'SearchBase'
   ScriptBlock   = $sbADSearchBase
}

TabExpansion++\Register-ArgumentCompleter @tabExpansion
#endregion