Dear,

I'm using Output Cache Provider for Page Setting, and set cache Duration 6000 seconds

So now, i had try using some function for clear cache, but not working

DataCache.ClearHostCache(true);

DataCache.ClearCache();

DataCache.ClearPortalCache(PortalSettings.PortalId, true);

And also, I try find in Scheduler for clear cache

var portals = PortalController.Instance.GetPortals();
                foreach (KeyValuePair kvp in OutputCachingProvider.GetProviderList())
                {
                    try
                    {
                        foreach (PortalInfo portal in portals)
                        {
                            kvp.Value.PurgeExpiredItems(portal.PortalID);
                            kvp.Value.PurgeCache(portal.PortalID);
                            ScheduleHistoryItem.AddLogNote(string.Format("Purged output cache for {0}.  ", kvp.Key));
                        }
                    }
                    catch (NotSupportedException exc)
                    {
                        //some output caching providers don't use this feature
                        Logger.Debug(exc);
                    }
                }

Not working too. Because i do not permission for user can login Server, so i want creat one button for clear cache all my portal.

I mean, i want creat button like 

and