I am writing a bridge to synchronise our client application with EWS via the managed API.
I'm running into a lot of problems caused by the fact that I don't know who has last updated the appointment I'm working with(Outlook client/owa/My bridge).
There are certain appointments (tagged with a category[0] = 'Booking') that I don't want the user to modify, but I cant tell whether it was updated by the user or my bridge.
is there a way I can create the appointment as Read-only, or get the old info for the appointment and revert it back ?
I've tried to kind of show what I mean below :
public void TimerCallback(object source, ElapsedEventArgs e)
{
FPollTimer.Enabled = false;
try
{
GetEventsResults notificationEvents = FCalendarSubscription.GetEvents();
EWSMethods.monitorFRM.log("Notification count = " + FEWSUser + ":" + notificationEvents.AllEvents.Count.ToString());
if (notificationEvents.AllEvents.Count > 0)
{
foreach (ItemEvent itemEvent in notificationEvents.ItemEvents)
{
// -- check to see if this is a valid appointment -- //
// -- Echange creates two appts and deletes one of -- //
// -- them for any appointment creation -- //
try
{
//Folder tempFolder = Folder.Bind(FEWSService, itemEvent.ParentFolderId.ToString());
EWSMethods.monitorFRM.log("Notification-" + FEWSUser + " : " + itemEvent.EventType.ToString());
// -- Is this item in the stack? -- //
if (NeedPingPongcheck(itemEvent))
{
CheckPingPong(itemEvent);
}
else
{
Appointment o_appointment = Appointment.Bind(FEWSService, itemEvent.ItemId.ToString());
if (o_appointment != null) WriteEventToDB(itemEvent);
}
}
catch (Exception exc2)
{
EWSMethods.monitorFRM.log("TimerCallBack inner " + exc2.Message);
}
}
}
}
catch (Exception exc)
{
EWSMethods.monitorFRM.log("timercallback outer " + exc.Message);
//MessageBox.Show(e.Message);
}
FPollTimer.Enabled = true;
}
public void WriteEventToDB(ItemEvent item)
{
try
{
EWSMethods.monitorFRM.log("Attempting write to DB ");
string s_allday;
string s_appointmentid;
//MessageBox.Show(item.ItemId.ToString());
// -- use the old item id for deleted (moved) appointments -- //
if (item.EventType == EventType.Moved)
{
s_appointmentid = item.OldItemId.ToString();
}
else
{
s_appointmentid = item.ItemId.ToString();
}
// Get all properties of email message
PropertySet pset = new PropertySet(BasePropertySet.FirstClassProperties);
// Get the body in text
pset.RequestedBodyType = Microsoft.Exchange.WebServices.Data.BodyType.Text;
// -- set up allDay flag -- //
Appointment o_appointment = Appointment.Bind(FEWSService, item.ItemId.ToString(),pset);
if ((o_appointment.IsAllDayEvent) & (o_appointment != null))
{
s_allday = "Y";
}
else
{
s_allday = "N";
}
// --
if (o_appointment.Categories[0] != "Booking")
{
AddInterimEntry(o_appointment,
item,
s_allday,
s_appointmentid,
item.EventType.ToString());
}
else
{
if ((item.EventType == EventType.Modified) || (item.EventType == EventType.Moved)) {
EWSMethods.monitorFRM.log("Booking item skipped." + item.OldItemId.ToString());
}
}
}
catch (Exception e)
{
EWSMethods.monitorFRM.log(e.Message);
}
}
Thanks in advance.
Related
I am using google API to get location in my project. It gives location sometimes but most of the time it does not give any location. and from today it is giving server return an error 403 forbidden.
When i am hitting the URL in my browser it is giving location.
I am not using any key for my API can it cause this issue.
Just to add-
I get the lat and long from my api and then i get the location from google api and stores it in my database.
What i am doing is:-
public static string getGoogleLocationByLogLat(string log, string lat)
{
try
{
if (log == "")
{
log = "0.0";
}
if (lat == "")
{
lat = "0.0";
}
XmlTextReader xReader;
bool element = false;
string location = "", time, GL, parentEmail, respDateTime;
string parentElementName = "";
string childElementName = "";
string childElementValue = "", prmryCntact = "";
string url = "http://maps.google.com/maps/api/geocode/xml?latlng=" + lat + "," + log + "&sensor=true";
xReader = new XmlTextReader(url);
while (xReader.Read())
{
if (xReader.NodeType == XmlNodeType.Element)
{
if (element)
{
parentElementName = parentElementName + childElementName + "<br>";
}
element = true;
childElementName = xReader.Name;
}
else if (xReader.NodeType == XmlNodeType.Text | xReader.NodeType == XmlNodeType.CDATA)
{
element = false;
childElementValue = xReader.Value;
if (childElementName == "formatted_address")
{
location = childElementValue;
break;
}
}
}
if (location.Trim() == "")
{
location = "Location not found";
}
return location;
}
catch (Exception ex)
{
return "LOCATION NOT FOUND";
}
}
Add your API key
&key=yourkey
With the latest policy updates to the maps api, i believe this must be the case that you're hitting...
Also use https ... It's permitted only over https
Using Websockets, I am able to use 1 computer and 1 kinect v2.0 to generate JSON objects of the joints x,y, and z coordinates in real-time. The next steps is to have this data transferred to another computer, using possibly TCP/IP network. My question is to anyone who knows how this is done. Having this data transferred to another computer.
Output that needs to be transferred to another computer in real-time
namespace WebSockets.Server
{
class Program
{
// Store the subscribed clients.
static List<IWebSocketConnection> clients = new List<IWebSocketConnection>();
// Initialize the WebSocket server connection.
static Body[] bodies = new Body[6];
//static KinectSensor kinectSensor = null;
static CoordinateMapper _coordinateMapper;
static Mode _mode = Mode.Color;
static void Main(string[] args)
{
//const string SkeletonStreamName = "skeleton";
//SkeletonStreamMessage skeletonStreamMessage;// = new SkeletonStreamMessage { stream = SkeletonStreamName };
KinectSensor kinectSensor = KinectSensor.GetDefault();
BodyFrameReader bodyFrameReader = null;
bodyFrameReader = kinectSensor.BodyFrameSource.OpenReader();
ColorFrameReader colorFrameReader = null;
colorFrameReader = kinectSensor.ColorFrameSource.OpenReader();
_coordinateMapper = kinectSensor.CoordinateMapper;
kinectSensor.Open();
WebSocketServer server = new WebSocketServer("ws://localhost:8001");
server.Start(socket =>
{
socket.OnOpen = () =>
{
// Add the incoming connection to our list.
clients.Add(socket);
};
socket.OnClose = () =>
{
// Remove the disconnected client from the list.
clients.Remove(socket);
};
socket.OnMessage = message =>
{
if (message == "get-video")
{
int NUMBER_OF_FRAMES = new DirectoryInfo("Video").GetFiles().Length;
// Send the video as a list of consecutive images.
for (int index = 0; index < NUMBER_OF_FRAMES; index++)
{
foreach (var client in clients)
{
string path = "Video/" + index + ".jpg";
byte[] image = ImageUtil.ToByteArray(path);
client.Send(image);
}
// We send 30 frames per second, so sleep for 34 milliseconds.
System.Threading.Thread.Sleep(270);
}
}
else if (message == "get-bodies")
{
if (kinectSensor.IsOpen)
{
if (bodyFrameReader != null)
{
bodyFrameReader.FrameArrived += bodyFrameReader_FrameArrived;
}
}
}
else if (message == "get-color")
{
if (kinectSensor.IsOpen)
{
if (colorFrameReader != null)
{
colorFrameReader.FrameArrived += colorFrameReader_FrameArrived;
}
}
}
};
});
// Wait for a key press to close...
Console.ReadLine();
kinectSensor.Close();
}
private static void colorFrameReader_FrameArrived(object sender, ColorFrameArrivedEventArgs e)
{
//throw new NotImplementedException();
using (ColorFrame colorFrame = e.FrameReference.AcquireFrame()) {
if (colorFrame != null) {
var blob = colorFrame.Serialize();
foreach (var client in clients)
{
if (blob != null)
{
client.Send(blob);
Console.WriteLine("After color Blob sent");
}
}
}
}
}
private static void bodyFrameReader_FrameArrived(object sender, BodyFrameArrivedEventArgs e)
{
//throw new NotImplementedException();
bool dataReceived = false;
using (BodyFrame bodyFrame = e.FrameReference.AcquireFrame())
{
if (bodyFrame != null)
{
if (bodies == null)
{
bodies = new Body[bodyFrame.BodyCount];
}
// The first time GetAndRefreshBodyData is called, Kinect will allocate each Body in the array.
// As long as those body objects are not disposed and not set to null in the array,
// those body objects will be re-used.
bodyFrame.GetAndRefreshBodyData(bodies);
dataReceived = true;
}
}
if (dataReceived)
{
foreach (var client in clients)
{
var users = bodies.Where(s => s.IsTracked.Equals(true)).ToList();
if (users.Count>0){
string json = users.Serialize(_coordinateMapper, _mode);
Console.WriteLine("jsonstring: " + json);
Console.WriteLine("After body serialization and to send");
}
}
}
}
}
}
Try changing it from
WebSocketServer server = new WebSocketServer("ws://localhost:8001");
to
WebSocketServer server = new WebSocketServer(" ws://192.168.X.X:8001");
on the client end. Enter the IP address of the client computer and make sure both server and client are on the same network.
I'm new to Windows phone 8 development. I'm trying to navigate from my AzureFunctions class to another page but I always get this error
Object reference not set to an instance of an object.
I have googled but still can't find any solution. Do you guys have any idea how to achieve this?
My RegisterPage (where I called InsertData method in AzureFunctions class)
private void signUp_button_Click(object sender, RoutedEventArgs e)
{
if (email_validation && password_validation && confirmPassword_validation == true)
{
new AzureFunctions().InsertData(new UserInfo_Table_Azure()
{
Email = regisEmail_textBox.Text,
Password = regisPassword_textBox.Password,
DOB = (DateTime)DOB_picker.Value,
UserCancerInfo = (Boolean)userCancerInfo_checkBox.IsChecked,
FamilyCancerInfo = (Boolean)userFamilyCancerInfo_checkBox.IsChecked
});
}
else
{
String errorMsg = "";
if (email_validation == false)
{
errorMsg += "Your email is not valid\r\n";
regisEmail_textBox.BorderBrush = new SolidColorBrush(Colors.Red);
}
if (password_validation == false)
{
errorMsg += "Your password can't be empty\r\n";
regisPassword_textBox.BorderBrush = new SolidColorBrush(Colors.Red);
}
if (confirmPassword_validation == false)
{
errorMsg += "Your Confirm password and password aren't matched";
comfirmPassword_textBox.BorderBrush = new SolidColorBrush(Colors.Red);
}
MessageBox.Show(errorMsg);
}
}
My AzureFunctions Class
public async void InsertData(object data)
{
try
{
SystemFunctions.SetProgressIndicatorProperties(true);
SystemTray.ProgressIndicator.Text = "Registering...";
//Check type of data
if (IsUserInfo_Data(data))
{
//Insert data into UserInfo_Table
await azure_userInfo_table.InsertAsync((UserInfo_Table_Azure)data);
Debug.WriteLine("Success inserting data to azure");
SystemFunctions.SetProgressIndicatorProperties(false);
MessageBoxResult result = MessageBox.Show(AppResources.RegisterSuccessfully, AppResources.Congratulation, MessageBoxButton.OK);
if (result == MessageBoxResult.OK)
{
try
{
new RegisterPage().NavigationService.Navigate(new Uri("/MainPage.xaml", UriKind.Relative));
}
catch (NullReferenceException e)
{
Debug.WriteLine(e.Message);
}
}
}
else if (IsPoop_Data(data))
{
//Insert data into Poop_Table
await azure_poop_table.InsertAsync((Poop_Table_Azure)data);
Debug.WriteLine("Success");
}
}
catch (MobileServiceInvalidOperationException e)
{
SystemFunctions.SetProgressIndicatorProperties(false);
Debug.WriteLine("Failed: " + e.Message);
}
}
Not really a good idea to do navigation from a non-Page, but this should work
App.RootFrame.Navigate(...)
i found this example(https://developer.nokia.com/Community/Wiki/Windows_Phone_8_communicating_with_Arduino_using_Bluetooth) in my research to develop a bluetooth console to windows phone 8. This example work very well, except for the TERMINATE function. When i call TERMINATE function, the ReceiveMessages function still trying receive data, but there is no more socket available and it generate a system.exception. I tried a lot of workaround, but i dont have enough experience with C#, this is my first APP. Anyone know how can i workaround this situation or have a better example?
i did only 1 modificiation:
private async void AppToDevice()
{
if (!connected)
{
ConnectAppToDeviceButton.Content = "Connecting...";
PeerFinder.AlternateIdentities["Bluetooth:Paired"] = "";
var pairedDevices = await PeerFinder.FindAllPeersAsync();
if (pairedDevices.Count == 0)
{
Debug.WriteLine("No paired devices were found.");
}
else
{
foreach (var pairedDevice in pairedDevices)
{
if (pairedDevice.DisplayName == DeviceName.Text)
{
connectionManager.Connect(pairedDevice.HostName);
ConnectAppToDeviceButton.Content = "Disconnect";
DeviceName.IsReadOnly = true;
//ConnectAppToDeviceButton.IsEnabled = false;
continue;
}
}
}
}
else
{
connectionManager.Terminate();
ConnectAppToDeviceButton.Content = "Connect";
}
}
I found a solution here:
WinRT: DataReader.LoadAsync Exception with StreamSocket TCP
I did only a few modifications:
public void Terminate()
{
try
{
if (socket != null)
{
taskLoadLength.Cancel();
taskLoadLength.Close();
taskLoadMessage.Cancel();
taskLoadMessage.Close();
socket.Dispose();
dataReadWorker.CancelAsync();
dataReader.Dispose();
dataWriter.Dispose();
isInicialized = false;
}
}
catch (Exception e)
{
MessageBox.Show(e.Message);
}
}
private void ReceiveMessages(object sender, DoWorkEventArgs ev)
{
while (true)
{
try
{
// Read first byte (length of the subsequent message, 255 or less).
//uint sizeFieldCount = await dataReader.LoadAsync(1);
taskLoadLength = dataReader.LoadAsync(1);
taskLoadLength.AsTask().Wait();
uint sizeFieldCount = taskLoadLength.GetResults();
if (sizeFieldCount != 1)
{
// The underlying socket was closed before we were able to read the whole data.
return;
}
// Read the message.
uint messageLength = dataReader.ReadByte();
taskLoadMessage = dataReader.LoadAsync(messageLength);
taskLoadMessage.AsTask().Wait();
uint actualMessageLength = taskLoadMessage.GetResults();
//uint actualMessageLength = await dataReader.LoadAsync(messageLength);
if (messageLength != actualMessageLength)
{
// The underlying socket was closed before we were able to read the whole data.
return;
}
// Read the message and process it.
string message = dataReader.ReadString(actualMessageLength);
MessageReceived(message);
}
catch (AggregateException ae)
{
MessageBox.Show(ae.Message);
}
catch (Exception e)
{
MessageBox.Show(e.Message);
}
}
}
I am using DDE client to attach and listen stock market prices. That client has a callback method I implemented what to do when it receives price changes. The problem is that I get StackOverflowException (periodically and not at the same time interval). I found something about Thread.BeginCriticalRegion(), but I'm not sure if it would help. I have a few more hours until market opening when I can test it.
I would be more than greatful if someone could give me an idea how to override this exception.
Thanks in advance,
Aleksandar
IList<SymbolObject> _symbols; //initialized when the app runs for the first time
void _ddeClient_Advise(object sender, DdeAdviseEventArgs args)
{
if (!IsReady)
return;
if (string.IsNullOrEmpty(args.Text))
{
_logMessages.LogMessagesAdd("advise dde symbol", string.Format("args.Text is empty or NULL for {0}", args.Item), true);
return;
}
try
{
string[] argsArray = args.Text.Replace("\0", "").Replace('\0'.ToString(), "").Split(' '); // sometimes happens here
var list = _symbols.Where(s => s.DDESymbol == args.Item).ToList();
if (list.Count == 0)
return;
decimal? val = null;
try
{
var stringParts = StringUtils.CleanProphitXUrl(argsArray[0]).Split('.');
argsArray = null;
if (stringParts.Length >= 2)
val = decimal.Parse(stringParts[0] + "." + (stringParts[1].Length > 2 ? stringParts[1].Substring(0, 2) : stringParts[1]));
else
val = decimal.Parse(stringParts[0]);
stringParts = null;
}
catch (Exception ex)
{
_logMessages.LogMessagesAdd("call Price Alerts application service", ex.Message, true);
return;
}
foreach (var l in list)
{
if (_lastPrices[l.DDESymbol] == null)
continue;
if (_lastPrices[l.DDESymbol].ToString() != val.ToString())
{
try
{
_quotePublishingService.PublishQuote(l.DDESymbolId, l.Symbol, args.Item, val, WebSyncPublisherUrl,
PublishingChannel); // a call to wcf service
}
catch (Exception ex)
{
_logMessages.LogMessagesAdd("call the service", ex.Message, true); // save to sql db
return;
}
_lastPrices[l.DDESymbol] = val.ToString();
}
}
list = null;
val = null;
}
catch
{
}
}
public static string CleanProphitXUrl(string value) // StringUtils.CleanProphitXUrl snippet
{
StringBuilder sb = new StringBuilder();
sb.Append(value.Substring(0, value.LastIndexOf(".") + 1));
try
{
value = value.Replace('\r'.ToString(), "").Replace('\t'.ToString(), "").Replace('\n'.ToString(), "");
for (int i = sb.Length; i < value.Length; i++)
{
if (char.IsNumber(value[i]))
sb.Append(value[i]);
}
}
catch
{
}
return sb.ToString();
}
A StackOverflowException is caused by making to many method calls usually resulting from unintended recursion. Based on a cursory check of the code you posted I do not believe it is the culprit. The problem likely lies somewhere else.