public static SPContentType CreateContentType(this SPWeb web,
SPContentTypeId parentContentTypeId,
string ctName,
string group,
Action <SPContentType> action,
bool updateChildren = false)
{
return(web.CreateContentType(parentContentTypeId, ctName,
contentType =>
{
if (!string.IsNullOrEmpty(group))
{
contentType.Group = group;
}
if (action != null)
{
action(contentType);
}
},
updateChildren));
}