如何獲得com +應用程序的所有com +組件的列表？

Question

我正在嘗試使用c＃和ASP.NET來使用COM +。 我一直在關注一個例子 ，但其中一部分失敗了。

dynamic oCatalog = Activator.CreateInstance(Type.GetTypeFromProgID("ComAdmin.COMAdminCatalog"));
/* Get the Applications collection and populate it */
dynamic applicationInstances = oCatalog.GetCollection("Applications");
applicationInstances.Populate();
foreach (dynamic applicationInstance in applicationInstances)
    {
        Response.Write("<p>" + applicationInstance.Name.ToString() + "-" + applicationInstance.Key.ToString() + "</p>");
        dynamic objComponents = oCatalog.GetCollection("Components", applicationInstance.Key);
        objComponents.Populate();
        foreach(dynamic Components in objComponents)
        {
            Response.Write("<p>" + Components.Name.ToString() + "</p>");
        }           
    }

當上面調用oCatalog.GetCollection（“Components”，applicationInstance.Key）被調用時，我得到錯誤：

System.Reflection.TargetParameterCountException：調用GetCollection時出錯。

如何獲取應用程序實例中的當前組件列表？

Answer 1

您需要為特定應用程序的組件詢問“applications”集合：

ICOMAdminCatalog2 oCatalog = (ICOMAdminCatalog2) Activator.CreateInstance(Type.GetTypeFromProgID("ComAdmin.COMAdminCatalog"));

ICatalogCollection applications = oCatalog.GetCollection("Applications");
applications.Populate();
foreach (ICatalogObject applicationInstance in applications)
{
    ICatalogCollection comps = applications.GetCollection("Components", applicationInstance.Key);
    comps.Populate();
    foreach (ICatalogObject comp in comps)
    {
        Console.WriteLine("{0} - {1}", comp.Name, comp.Key);
    }
}

有關示例，請訪問： http ： //msdn.microsoft.com/en-us/library/windows/desktop/ms686093（v = vs。85）.aspx