SharePoint 2010 - Title field not showing up in list of columns for Content type created using Powershell

Question

I have used following power-shell script for creating a new content type with one custom column.

$siteURL = "My Site URL"
$contentTypeName = "Test Content Type 1"
$contentTypeGroupName = "Content Type Group Name"

[System.Reflection.Assembly]::LoadWithPartialName("Microsoft.SharePoint")
[System.Reflection.Assembly]::LoadWithPartialName("System.Collections.Specialized")
$site = New-Object microsoft.sharepoint.spsite($siteURL)
$web = $site.openweb()

$cTypeID = $web.AvailableContentTypes["Item"]
$cTypes = $web.ContentTypes
$cType = New-Object Microsoft.SharePoint.SPContentType($cTypeID, $cTypes, $contentTypeName)
$cType.Group = $contentTypeGroupName
$cTypes.Add($cType)

$web.fields.add("myField2", ([Type]"Microsoft.SharePoint.SPFieldType")::Text, $false)
$field = $web.fields.getfield("myField2")
$fieldLink = new-object Microsoft.SharePoint.SPFieldLink($field)
$cType.fieldlinks.add($fieldLink)
$cType.Update() 

$web.Dispose()
$site.Dispose()

This code creates the content type successfully and adds a site column to it.

But when i go to content type gallery and try to expand the content type. Only one field i.e. "myField2" is appearing in the list of columns. I was expecting "Title" field to also appear in the list, as its implicitly part of every custom content type. But its not there.

Can anybody explain why is it so ? or My understanding is wrong somewhere ?

Thanks in advance.

Answer 1

So, it turned out that somebody screwed up with the default Item content type and hence the Title column was not visible under the Item content type. And, hence also not visible under my custom content type, as it was inheriting from Item content type.

While googling around, i came across a similar question here. Jason provided the STSADM commands for resetting the built-in fields to their default state. Below are the commands which did the trick,

stsadm -o deactivatefeature -name Fields -url http://Site Collection URL -force
stsadm -o activatefeature -name Fields -url http://Site Collection URL -force

What these commands are doing is, they are actually deactivating and activating back the Fields feature on the affected Site Collection.