c# - 确定 Windows 更新分类

Question

从 Windows 更新 COM 库 (WUAPILib) 我可以访问IUpdate接口，但是我看不到任何方法可以用来获取更新分类（关键、重要、可选）以与 Windows 更新相同的方式对更新进行分组控制面板中的 UI 可以。

Answer 1

在 IUpdate 的帮助下，您可以从更新 ID 中获取 IcategoryCollection。

现在，第一个 ICategory 存储操作系统的更新类型的分类。请特别注意放置注释的行：

Console.WriteLine("Patch name = " + ic.Name.ToString());
// In the ICategory collection, first element ICategory stores information of "Update Classification"; 
// whereas second Icategory element stores the product type information.

测试代码：

UpdateSession uSession = new UpdateSession();
IUpdateSearcher uSearcher = uSession.CreateUpdateSearcher();
uSearcher.Online = false;
ISearchResult sResult = uSearcher.Search("IsInstalled=1 And IsHidden=0");
Console.WriteLine("Found " + sResult.Updates.Count + " updates" + Environment.NewLine);
   foreach (IUpdate update in sResult.Updates)
   {
          Console.WriteLine();
          Console.WriteLine("Required update " + update.KBArticleIDs[0].ToString() + " is installed...");
          Console.WriteLine("Update ID = "+update.Identity.UpdateID);
          ICategoryCollection icc = update.Categories;
          foreach (ICategory ic in icc)
          {
            Console.WriteLine("Patch description = " + ic.Description.ToString());
            Console.WriteLine("Patch category = " + ic.CategoryID.ToString());
            Console.WriteLine("Patch Type = " + ic.Type.ToString());
            Console.WriteLine("Patch name = " + ic.Name.ToString()); 
// only first ICategory element stores the patch name,
// which reveals the Classification information
          }
   }

样本输出：