MonoTouch.Dialog.Section.Clear C# (CSharp) Method

		public void Clear ()
		{
			foreach (var e in Elements)
				e.Dispose ();
			Elements = new List<Element> ();

			var root = Parent as RootElement;
			if (root != null && root.TableView != null)
				root.TableView.ReloadData ();
		}

        public void DebugPage()
        {
            TraceHelper.AddMessage("Debug: constructor");

            // render URL and status
            var serviceUrl = new EntryElement("URL", "URL to connect to", WebServiceHelper.BaseUrl);
            var service = new Section("Service")
            {
                serviceUrl,
                new StringElement("Store New Service URL", delegate
                {
                    serviceUrl.FetchValue();
                    // validate that this is a good URL before storing it (a bad URL can hose the phone client)
                    Uri uri = null;
                    if (Uri.TryCreate(serviceUrl.Value, UriKind.RelativeOrAbsolute, out uri) &&
                        (uri.Scheme == "http" || uri.Scheme == "https"))
                        WebServiceHelper.BaseUrl = serviceUrl.Value;
                    else
                        serviceUrl.Value = WebServiceHelper.BaseUrl;
                }),
                new StringElement("Connected", App.ViewModel.LastNetworkOperationStatus.ToString()),
            };

            // render user queue
            var userQueue = new Section("User Queue");
            userQueue.Add(new StringElement(
                "Clear Queue",
                delegate
                {
                    RequestQueue.DeleteQueue(RequestQueue.UserQueue);
                    userQueue.Clear ();
                }));

            List<RequestQueue.RequestRecord> requests = RequestQueue.GetAllRequestRecords(RequestQueue.UserQueue);
            if (requests != null)
            {
                foreach (var req in requests)
                {
                    string typename;
                    string reqtype;
                    string id;
                    string name;
                    RequestQueue.RetrieveRequestInfo(req, out typename, out reqtype, out id, out name);
                    var sse = new StyledStringElement(String.Format("  {0} {1} {2} (id {3})", reqtype, typename, name, id))
                    {
                        Font = UIFont.FromName("Helvetica", UIFont.SmallSystemFontSize),
                    };
                    userQueue.Add (sse);
                }
            }

            // render system queue
            var systemQueue = new Section("System Queue");
            systemQueue.Add(new StringElement(
                "Clear Queue",
                delegate
                {
                    RequestQueue.DeleteQueue(RequestQueue.SystemQueue);
                    systemQueue.Clear ();
                }));

            requests = RequestQueue.GetAllRequestRecords(RequestQueue.SystemQueue);
            if (requests != null)
            {
                foreach (var req in requests)
                {
                    string typename;
                    string reqtype;
                    string id;
                    string name;
                    RequestQueue.RetrieveRequestInfo(req, out typename, out reqtype, out id, out name);
                    var sse = new StyledStringElement(String.Format("  {0} {1} {2} (id {3})", reqtype, typename, name, id))
                    {
                        Font = UIFont.FromName("Helvetica", UIFont.SmallSystemFontSize),
                    };
                    systemQueue.Add (sse);
                }
            }

            var traceMessages = new Section("Trace Messages");
            traceMessages.Add(new StringElement(
                "Clear Trace",
                delegate
                {
                    TraceHelper.ClearMessages();
                    traceMessages.Clear ();
                }));
            traceMessages.Add(new StringElement(
                "Send Trace",
                delegate
                {
                    TraceHelper.SendMessages(App.ViewModel.User);
                }));
            foreach (var m in TraceHelper.GetMessages().Split('\n'))
            {
                // skip empty messages
                if (m == "")
                    continue;

                // create a new (small) string element with a detail indicator which
                // brings up a message box with the entire message
                var sse = new StyledStringElement(m)
                {
                    Accessory = UITableViewCellAccessory.DetailDisclosureButton,
                    Font = UIFont.FromName("Helvetica", UIFont.SmallSystemFontSize),
                };
                string msg = m;  // make a copy for the closure below
                sse.AccessoryTapped += delegate
                {
                    var alert = new UIAlertView ("Detail", msg, null, "Ok");
                    alert.Show ();
                };
                traceMessages.Add(sse);
            };

            var root = new RootElement("Debug")
            {
                service,
                userQueue,
                systemQueue,
                traceMessages,
            };

            var dvc = new DialogViewController (root, true);
            dvc.TableView.BackgroundColor = UIColorHelper.FromString(App.ViewModel.Theme.PageBackground);
            this.PushViewController (dvc, true);
            //this.NavigationController.PushViewController (dvc, true);
        }