ContentType.FieldLinks.Add() issue with hidden and required

Question

I have a feature that does the following in the feature activation Code :

• Creates a new SiteColumn (Type=Text, Hidden=False and Required =True)
• Set the french version of the Name (using CurrentUICulture switching)
• Create a new ContentType
• Add the SiteColumn to the new Content Type
• Create a new list
• Attach the ContentType to the list

But that causes some unexpected behaviors.

Sometimes my Column in the list is Hidden=True, sometimes Required=False. It seems to be totally Random.

It seems related to the ContentType.FieldLinks.Add() since the values are wrong in the content type.

Anyone faced something like that before?

Thanks

Answer 1

• Have you made the list content type enabled - SPList.ContentTypeEnabled?
• Try to set the 'Required' property on the fieldlink from the content type and not directly on the site column itself
• You don't have to set the 'Hidden' property, it's false by default.