UWP Application : Map Route API (MapRouteFinder.GetDrivingRouteAsync) does not respond and even no way to refresh or cancel a request

Question

UWP Application : Map Route API (MapRouteFinder.GetDrivingRouteAsync) does not respond and even no way to refresh or cancel a request

Amit Tyagi 1

0

I am trying to draw a route on Map Control in UWP application for desktops for specific locations:

Start: { Latitude = 33.8917742, Longitude = -87.5261236 } End: { Latitude = 32.318231, Longitude = -86.902298 }

Caller API: MapRouteFinder.GetDrivingRouteAsync(startPoint, endPoint)

Issue: after I call, it never respond , It does not accept cancelation token, then I have tried to cancel manually with different approach but does not work. It seems initiator never canceled.

Please let me know in case required more details.

Please find Video and Sample Code here: https://drive.google.com/drive/folders/1_hQtOxLV8YCO-AwzKGLKIGXCfJX1hL8R?usp=sharing

Device Info:
OS Name Microsoft Windows 10 Pro
Version 10.0.18362 Build 18362
OS Manufacturer Microsoft Corporation
System Manufacturer Hewlett-Packard
System Model HP EliteBook 840 G2
System Type x64-based PC
Processor Intel(R) Core(TM) i7-5600U CPU @ 2.60GHz, 2601 Mhz, 2 Core(s), 4 Logical Processor(s)
BIOS Version/Date Hewlett-Packard M71 Ver. 01.28, 4/18/2019
SMBIOS Version 2.7
Embedded Controller Version 150.91
BIOS Mode Legacy
BaseBoard Manufacturer Hewlett-Packard
BaseBoard Product 2216
BaseBoard Version KBC Version 96.5B
Platform Role Mobile
Locale United States
Time Zone India Standard Time
Installed Physical Memory (RAM) 12.0 GB
Total Physical Memory 11.9 GB
Available Physical Memory 2.38 GB
Total Virtual Memory 17.1 GB
Available Virtual Memory 4.07 GB
Page File Space 5.23 GB
Kernel DMA Protection Off

Nico Zhu (Shanghai Wicresoft Co,.Ltd.) 12,871 Reputation points

2020-10-01T03:00:54.817+00:00

GetDrivingRouteAsync is async method. have you add await key keyword before when GetDrivingRouteAsync call this method?
Amit Tyagi 1 Reputation point

2020-10-01T05:52:22.71+00:00
Code Snap:
var startPoint = new Geopoint(new BasicGeoposition() { Latitude = 33.8917742, Longitude = -87.5261236 });
var endPoint = new Geopoint(new BasicGeoposition() { Latitude = 32.318231, Longitude = -86.902298 });

var routeResult = await MapRouteFinder.GetDrivingRouteAsync(startPoint, endPoint);

if (routeResult.Status == MapRouteFinderStatus.Success) { MapRouteView viewOfRoute = new MapRouteView(routeResult.Route); viewOfRoute.RouteColor = Colors.Orange; viewOfRoute.OutlineColor = Colors.Red; myMap.Routes.Add(viewOfRoute); }
Nico Zhu (Shanghai Wicresoft Co,.Ltd.) 12,871 Reputation points

2020-10-01T06:41:23.23+00:00

Have you enable vpn for current OS, could you try to disable it and test again.
Amit Tyagi 1 Reputation point

2020-10-01T06:56:01.277+00:00

No VPN Enable, I have checked with Performance Profiler and Network traffic, Driving direction REST API is providing response, after that It just hang out and never return MapRouteFinderResult object and after sometime build crash. Please find attached response from REST API for driving route 29507-routejson-copy.txt
Amit Tyagi 1 Reputation point

2020-10-01T07:04:26.037+00:00

Please find Video and Sample Code here: https://drive.google.com/drive/folders/1_hQtOxLV8YCO-AwzKGLKIGXCfJX1hL8R?usp=sharing
Amit Tyagi 1 Reputation point

2020-10-01T07:05:22.62+00:00

I have removed MapKey in Sample
Nico Zhu (Shanghai Wicresoft Co,.Ltd.) 12,871 Reputation points

2020-10-01T08:32:46.057+00:00

Ok, I got it, please try to uninstall the map app, and reinstall it from store, and test again.
Amit Tyagi 1 Reputation point

2020-10-01T09:12:41.897+00:00

I am not able to uninstall system map app. it is up to date, Does it maters for sample app?
Amit Tyagi 1 Reputation point

2020-10-01T10:03:48.017+00:00

After restart my system, My app was able to draw route, Can you please bit explain why it happened.

1 answer

Your answer

Nico Zhu (Shanghai Wicresoft Co,.Ltd.) 12,871 Reputation points

2020-10-01T03:00:54.817+00:00

GetDrivingRouteAsync is async method. have you add await key keyword before when GetDrivingRouteAsync call this method?
Amit Tyagi 1 Reputation point

2020-10-01T05:52:22.71+00:00

Code Snap:
var startPoint = new Geopoint(new BasicGeoposition() { Latitude = 33.8917742, Longitude = -87.5261236 });
var endPoint = new Geopoint(new BasicGeoposition() { Latitude = 32.318231, Longitude = -86.902298 });

var routeResult = await MapRouteFinder.GetDrivingRouteAsync(startPoint, endPoint);

if (routeResult.Status == MapRouteFinderStatus.Success) { MapRouteView viewOfRoute = new MapRouteView(routeResult.Route); viewOfRoute.RouteColor = Colors.Orange; viewOfRoute.OutlineColor = Colors.Red; myMap.Routes.Add(viewOfRoute); }
Nico Zhu (Shanghai Wicresoft Co,.Ltd.) 12,871 Reputation points

2020-10-01T06:41:23.23+00:00

Have you enable vpn for current OS, could you try to disable it and test again.
Amit Tyagi 1 Reputation point

2020-10-01T06:56:01.277+00:00

No VPN Enable, I have checked with Performance Profiler and Network traffic, Driving direction REST API is providing response, after that It just hang out and never return MapRouteFinderResult object and after sometime build crash. Please find attached response from REST API for driving route 29507-routejson-copy.txt
Amit Tyagi 1 Reputation point

2020-10-01T07:04:26.037+00:00

Please find Video and Sample Code here: https://drive.google.com/drive/folders/1_hQtOxLV8YCO-AwzKGLKIGXCfJX1hL8R?usp=sharing
Amit Tyagi 1 Reputation point

2020-10-01T07:05:22.62+00:00

I have removed MapKey in Sample
Nico Zhu (Shanghai Wicresoft Co,.Ltd.) 12,871 Reputation points

2020-10-01T08:32:46.057+00:00

Ok, I got it, please try to uninstall the map app, and reinstall it from store, and test again.
Amit Tyagi 1 Reputation point

2020-10-01T09:12:41.897+00:00

I am not able to uninstall system map app. it is up to date, Does it maters for sample app?
Amit Tyagi 1 Reputation point

2020-10-01T10:03:48.017+00:00

After restart my system, My app was able to draw route, Can you please bit explain why it happened.

Answer 1

Daniele 1,996

The code below works for me to handle cases when Bing Map route service does not answer in a constrained time box, let me know if it helps you too

MapRouteFinderResult routeResult;
using (var cts = new CancellationTokenSource(TimeSpan.FromSeconds(30)))
{
    try
    {
        routeResult = await MapRouteFinder.GetDrivingRouteAsync(startPoint, endPoint).AsTask(cts.Token);
    }
    catch (TaskCanceledException)
    {
        routeResult = null;
    }
    catch (OperationCanceledException)
    {
        routeResult = null;
    }
}

Amit Tyagi 1 Reputation point

2020-10-01T07:30:19.813+00:00

Thanks dear, I had tried it too but it does not close MapRouteFinder existing request that remain open and resulted It will take out you for first time but next time when you call again same API, It just block.

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UWP Application : Map Route API (MapRouteFinder.GetDrivingRouteAsync) does not respond and even no way to refresh or cancel a request

1 answer

Your answer