SharePoint 2010 : List "Order field" is hidden

just run the below script and "order" field will be visible in the list.

[void][System.Reflection.Assembly]::LoadWithPartialName("Microsoft.SharePoint")

Add-PSSnapin Microsoft.SharePoint.Powershell -ErrorAction SilentlyContinue

$WebAppUrl = "http://site/"

$site=new-object Microsoft.SharePoint.SPSite($WebAppUrl) 

foreach ($web in $site.AllWebs) 

{ 

  Write-Host      $web.Url

 

  for ($i = 0; $i -lt $webLists.Count; $i++)

  {

 

     $spList = $weg.Lists[$i] #;   # ... }

      #foreach ($spList in $web.Lists) 

      # { 

            #if ($spList.BaseTemplate -eq "GenericList" -or $spList.BaseTemplate -eq  "DocumentLibrary" )

            if ($spList.BaseTemplate -eq "GenericList")

             {

                  # Write-Host  $spList.title

                 

                  if ($web.Url -eq "http://site")

                  {

                     #Write-Host  $spList.title

                   

                      $orderField = $spList.Fields["Order"]

                        $type = $orderField.GetType()

                        $mi = $type.GetMethod("SetFieldBoolValue", [reflection.bindingflags]"nonpublic, instance")

                        $parameters = "CanToggleHidden", $true

                        $mi.Invoke($orderField, $parameters)

                       

                        if($orderField.Hidden -eq $true)

                        {

                              Write-Host  "Surya" $spList.Title

                             

                              #if($spList.title -ne "Relationships List"  -or $spList.title -ne "Web Site Menu - First Level"   -or $spList.title -ne "Variation Labels" -or $spList.title -ne "TaxonomyHiddenList" -or $spList.title  -ne "Suggested Content Browser Locations" -or $spList.title -ne "Reusable Content" -or  $spList.title -ne "Reporting Metadata" -or $spList.title -ne "Notification List" -or  $spList.title -ne "Quick Deploy Items" -or $spList.title -ne "QuickLinksList")

                              #{

                                    $orderField.Hidden = $false

                                    $orderField.Update()

                              #}

                        }

                  }

                 

             }

           

            #SPListTemplateType.GenericList

      }

}

$web.Dispose()

$site.Dispose()