/// <summary>
/// lists the installed updates (still experimental)
/// </summary>
/// <returns>returns a list of installed updates</returns>
public static List<UpdateOpInfo> listInstalledUpdatesFromHistory()
{
UpdateSession session = new UpdateSession();
IUpdateSearcher updateSearcher = session.CreateUpdateSearcher();
int count = updateSearcher.GetTotalHistoryCount();
IUpdateHistoryEntryCollection foundUpdates = updateSearcher.QueryHistory(0, count);
HashSet<UpdateOpInfo> set = new HashSet<UpdateOpInfo>();
for (int i = 0; i < count; ++i)
{
var upd = foundUpdates[i];
UpdateOpInfo ud = new UpdateOpInfo();
ud.title = upd.Title;
ud.ID = upd.UpdateIdentity.UpdateID;
/* Note: The Date value seems to be in UTC and not in local
* time, because this value was off by a few hours. */
ud.date = upd.Date;
ud.operation = upd.Operation;
ud.result = upd.ResultCode;
//Check whether we have to add or remove the update.
if (isInstallSuccess(upd))
set.Add(ud);
else if (isUninstallSuccess(upd))
set.Remove(ud);
upd = null;
ud = null;
} //for
foundUpdates = null;
updateSearcher = null;
session = null;
List<UpdateOpInfo> result = new List<UpdateOpInfo>();
foreach (var item in set)
{
result.Add(item);
}
set = null;
return result;
}
/// <summary>
/// lists the update history
/// </summary>
/// <returns>returns the applied updates as list of UpdateOpInfo structures</returns>
public static List<UpdateOpInfo> listUpdateHistory()
{
UpdateSession session = new UpdateSession();
IUpdateSearcher updateSearcher = session.CreateUpdateSearcher();
int count = updateSearcher.GetTotalHistoryCount();
var history = updateSearcher.QueryHistory(0, count);
List<UpdateOpInfo> result = new List<UpdateOpInfo>();
for (int i = 0; i < count; ++i)
{
UpdateOpInfo opInfo = new UpdateOpInfo();
/* Note: The Date value seems to be in UTC and not in local
* time, because this value was off by a few hours. */
opInfo.date = history[i].Date;
opInfo.ID = history[i].UpdateIdentity.UpdateID;
opInfo.operation = history[i].Operation;
opInfo.result = history[i].ResultCode;
opInfo.title = history[i].Title;
result.Add(opInfo);
} //for
history = null;
updateSearcher = null;
session = null;
return result;
}
