django xadmin中form_layout添加字段显示方式

from xadmin.layout import Fieldset
class ProductCategoryAdmin(object):
  list_display = ['pc_name',,'pc_icorn','pc_link','sort','pc_parent']
  form_layout = (
    Fieldset(None,
         'pc_name','pc_icorn','pc_link','sort'
         ),
    Fieldset(None,
         'pc_id','pc_parent',**{"style":"display:None"} #隐藏前面两个字段
         ),
  )
xadmin.site.register(ProductCategory,ProductCategoryAdmin)