public static void SetCategoryHidden(Document doc, BuiltInCategory builtInCategory, bool n)
{
try
{
Categories cates = doc.Settings.Categories;
Category cate = cates.get_Item(builtInCategory);
doc.ActiveView.SetCategoryHidden(cate.Id, n);
}
catch (Exception)
{
TaskDialog.Show("Error", "設置類別可見性失敗");
}
}