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ArcGIS API for Microsoft Silverlight 2.0 using ArcGis 9.3.1 release of the map servic

leosnowmaple

ArcGIS API for Microsoft Silverlight 2.0 using ArcGis server 9.3.1 release of the map service problems: the current release of the map with ArcGis 9.3.1 service

delivery network of services (NAServer), in the ArcGIS API for Microsoft Silverlight 1.2 version to access all normal, using the new ArcGIS API for

Microsoft Silverlight 2.0 release, VS 2010 development environment, the access to these services made possible by routing error: error solving route,

unable to find attribute invalid context! ! Error, how to solve? ArcGIS API for Microsoft Silverlight 2.0 is designed for arcgis server 10 to access the

service may indeed release 9.3.1 problems? ?

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Accepted answers

All comments

SomeGISGuy

v2.0 is compatible with AGS9.3.1, but does offer new routing functionality that was not available in 9.3.1 (so stay clear of those added features).
Could you share some code? It's really hard to guess what the problem could be.

leosnowmaple

Maybe I did not make things clear, I am not saying that the map server 10 service release new features, currently I use the test code is InteractiveSDKSource of network analysis applications RoutingBarriers instance! The examples in the previous 1.2 version, I use their web analytics service release is run, and now upgrade to ArcGIS API for Microsoft Silverlight 2.0, the access to the same analysis of their published web services error, error message is: outing error: error solving route, unable to find attribute invalid context!! ask is what causes, how to solve? ? ! !

SomeGISGuy

Again I cannot guess what is wrong if you don't share some code, or the requests going between the browser and the server.

leosnowmaple

Sample - Interactive SDK to use the online map services (map service, network analysis services) is currently in the ArcGIS API for Microsoft Silverlight Interactive SDK is used in the 2.0 release of the service ARCGIS SERVER 10, right? For example: procedures used in network analysis service, http://tasks.arcgisonline.com/ArcGIS/rest/services/NetworkAnalysis/ESRI_Route_NA/NAServer/Route I use ARCGIS SERVER 9.3.1 release of the service, currently using the following code Access Times of the wrong: error message is: outing error: error solving route, unable to find attribute invalid context!!

Path analysis of the full code is as follows (in the API 1.2 use of normal):

leosnowmaple

XAML:
<UserControl x:Class="ArcGISSilverlightSDK.RoutingBarriers"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:esri="http://schemas.esri.com/arcgis/client/2009">
    <Grid x:Name="LayoutRoot" Background="White">

        <Grid.Resources>
            <esri:SimpleMarkerSymbol x:Key="StopSymbol" Size="20" Style="Circle" Color="Salmon" >
                <esri:SimpleMarkerSymbol.ControlTemplate>
                    <ControlTemplate>
                        <Grid>
                            <Ellipse Fill="{Binding Symbol.Color}" Width="{Binding Symbol.Size}" Height="{Binding Symbol.Size}" Stroke="Black" StrokeThickness="1" />
                            <TextBlock HorizontalAlignment="Center" VerticalAlignment="Center"
                                Text="{Binding Path=Attributes[StopNumber]}"
                                FontSize="9" Margin="0" FontWeight="Bold" Foreground="Black" />
                        </Grid>
                    </ControlTemplate>
                </esri:SimpleMarkerSymbol.ControlTemplate>
            </esri:SimpleMarkerSymbol>
            <esri:SimpleMarkerSymbol x:Key="BarrierSymbol" Size="15" Style="Square" Color="Red" />
            <esri:SimpleLineSymbol x:Key="RouteSymbol" Color="#990000FF" Width="5"/>
        </Grid.Resources>

        <esri:Map x:Name="MyMap" Background="White" Extent="-117.22,34.04,-117.17,34.07"
      MouseClick="MyMap_MouseClick" >
            <esri:Map.Layers>
                <esri:ArcGISTiledMapServiceLayer
                      Url="http://server.arcgisonline.com/ArcGIS/rest/services/ESRI_StreetMap_World_2D/MapServer"/>
                <esri:GraphicsLayer ID="MyRouteGraphicsLayer" />
                <esri:GraphicsLayer ID="MyStopsGraphicsLayer" />
                <esri:GraphicsLayer ID="MyBarriersGraphicsLayer" />
            </esri:Map.Layers>
        </esri:Map>

        <Grid HorizontalAlignment="Right" VerticalAlignment="Top" Margin="10" >
            <Rectangle Fill="#77919191" Stroke="Gray" RadiusX="10" RadiusY="10" Margin="0" >
                <Rectangle.Effect>
                    <DropShadowEffect/>
                </Rectangle.Effect>
            </Rectangle>
            <StackPanel Orientation="Horizontal" Margin="5">
                <RadioButton Content="Add Stops" x:Name="StopsRadioButton" IsChecked="true"
      Foreground="White" GroupName="add" VerticalAlignment="Center" />
                <RadioButton Content="Add Barriers" x:Name="BarriersRadioButton"
      Foreground="White" GroupName="add" VerticalAlignment="Center" />
                <Button Content="Clear" Click="Button_Click" Margin="5,0,0,0"/>
            </StackPanel>
        </Grid>
    </Grid>
</UserControl>

leosnowmaple

code behind c#:
using System.Collections.Generic;
using System.Windows;
using System.Windows.Controls;
using ESRI.ArcGIS.Client;
using ESRI.ArcGIS.Client.Tasks;

namespace ArcGISSilverlightSDK
{
    public partial class RoutingBarriers : UserControl
    {
        RouteTask _routeTask;
        List<Graphic> _stops = new List<Graphic>();
        List<Graphic> _barriers = new List<Graphic>();
        RouteParameters _routeParams = new RouteParameters();

        public RoutingBarriers()
        {
            InitializeComponent();

            _routeTask =
                new RouteTask("http://tasks.arcgisonline.com/ArcGIS/rest/services/NetworkAnalysis/ESRI_Route_NA/NAServer/Route");
            _routeTask.SolveCompleted += routeTask_SolveCompleted;
            _routeTask.Failed += routeTask_Failed;

            _routeParams.Stops = _stops;
            _routeParams.Barriers = _barriers;
            _routeParams.UseTimeWindows = false;
        }

        private void MyMap_MouseClick(object sender, ESRI.ArcGIS.Client.Map.MouseEventArgs e)
        {
            if (StopsRadioButton.IsChecked.Value)
            {
                GraphicsLayer stopsLayer = MyMap.Layers["MyStopsGraphicsLayer"] as GraphicsLayer;
                Graphic stop = new Graphic() { Geometry = e.MapPoint, Symbol = LayoutRoot.Resources["StopSymbol"] as ESRI.ArcGIS.Client.Symbols.Symbol };
                stop.Attributes.Add("StopNumber", stopsLayer.Graphics.Count + 1);
                stopsLayer.Graphics.Add(stop);
                _stops.Add(stop);
            }
            else if (BarriersRadioButton.IsChecked.Value)
            {
                GraphicsLayer stopsLayer = MyMap.Layers["MyBarriersGraphicsLayer"] as GraphicsLayer;
                Graphic barrier = new Graphic() { Geometry = e.MapPoint, Symbol = LayoutRoot.Resources["BarrierSymbol"] as ESRI.ArcGIS.Client.Symbols.Symbol };
                stopsLayer.Graphics.Add(barrier);
                _barriers.Add(barrier);
            }
            if (_stops.Count > 1)
            {
                if (_routeTask.IsBusy)
                    _routeTask.CancelAsync();
                _routeTask.SolveAsync(_routeParams);
            }
        }

        private void routeTask_Failed(object sender, TaskFailedEventArgs e)
        {
            string errorMessage = "Routing error: ";
            errorMessage += e.Error.Message;
            foreach (string detail in (e.Error as ServiceException).Details)
                errorMessage += "," + detail;

            MessageBox.Show(errorMessage);
            GraphicsLayer graphicsLayer = MyMap.Layers["MyStopsGraphicsLayer"] as GraphicsLayer;
            graphicsLayer.Graphics.RemoveAt(graphicsLayer.Graphics.Count - 1);
        }

        private void routeTask_SolveCompleted(object sender, RouteEventArgs e)
        {
            GraphicsLayer routeLayer = MyMap.Layers["MyRouteGraphicsLayer"] as GraphicsLayer;
            RouteResult routeResult = e.RouteResults[0];
            routeResult.Route.Symbol = LayoutRoot.Resources["RouteSymbol"] as ESRI.ArcGIS.Client.Symbols.Symbol;

            routeLayer.Graphics.Clear();
            Graphic lastRoute = routeResult.Route;

            routeLayer.Graphics.Add(lastRoute);
        }

        private void Button_Click(object sender, RoutedEventArgs e)
        {
            _stops.Clear();
            _barriers.Clear();

            foreach (Layer layer in MyMap.Layers)
                if (layer is GraphicsLayer)
                    (layer as GraphicsLayer).ClearGraphics();
        }
    }
}

leosnowmaple

Morten Nielsen (SharpGIS):
Hello!
Code is also posted, to see what the problem is how to solve? ! How ArcGIS API for Microsoft Silverlight 2 release access ARCGIS SERVER 9.3.1 Network analysis services, which are not error, normal use .....

RobertDolormente

Any solution for this? I'm running into the same issue. I'm trying to take advantage of the new features with Silverlight 4 and ArcGIS API for Silverlight 2.1 but the route task doesn't seem to like the 9.3.1 Route map service. Getting the following error: "Error solving route, unable to find attribute. Invalid context." If I revert to ArcGIS API for Silverlight 1.0 it works fine but can't use new features like the legend. Any ideas?

JenniferNery

Are you using the same url? http://tasks.arcgisonline.com/ArcGIS/rest/services/NetworkAnalysis/ESRI_Route_NA/NAServer. This seems to be a broken link and might be what causes the issue? Also the version of http://tasks.arcgisonline.com/ArcGIS/rest/services/NetworkAnalysis seem updated to 10.01.

RobertDolormente

Are you using the same url? http://tasks.arcgisonline.com/ArcGIS/rest/services/NetworkAnalysis/ESRI_Route_NA/NAServer. This seems to be a broken link and might be what causes the issue? Also the version of http://tasks.arcgisonline.com/ArcGIS/rest/services/NetworkAnalysis seem updated to 10.01.

No, I'm using a service created with some local data with the City. It works in an app that we developed with the ArcGIS API for Silverlight 1.0 but when I move the same code to an app using 2.1, I get the error I reported in my last post.

Thanks for your help!

HoudiniSutherland

Guys, did anyone get this thing to work? I am facing the exact same issue. I created and publish my network service, created the app in VS to call it, and BOOM! that stupid message. I am using V 2.2 of the API.

ChristopherHill

Hi all,

I have used the above code sample and replaced it with a 9.3.1 routing service. I tested the sample with 1.2, 2.0 and 2.1 Silverlight API and have not been able to reproduce the error mentioned. The problem may be with the Routing service itself. If someone has a public service they don't mind sharing i would be happy to test against their service.

.Chris

HoudiniSutherland

Hi all,

I have used the above code sample and replaced it with a 9.3.1 routing service. I tested the sample with 1.2, 2.0 and 2.1 Silverlight API and have not been able to reproduce the error mentioned. The problem may be with the Routing service itself. If someone has a public service they don't mind sharing i would be happy to test against their service.

.Chris

Chris,

I will check if it is possible to actually share the info of the service. However, just to point out; I am using ArcGIS 10, not 9.3.1, and also I am using ArcGIS API for Microsoft Silverlight 2.2. As stated before, I am calling my own network service, not ESRI's service: (http://tasks.arcgisonline.com/ArcGIS/rest/services/NetworkAnalysis/ESRI_Route_NA/NAServer/Route), which by the way works perfectly. I can't see why I am not attaining success with calling my service as I did when I called ERIS's.

HoudiniSutherland

Nope, the service isn't public at the moment.

GaryBushek

Same issue. We are using ArcGIS 10 and the Silverlight 2.4 API. And get the message "Unable to find attribute . Invalid context.".

The differences we can see are:
1. the Impedence field on ESRI's service is "Time" and our Impedence field is named "Cost".
2. ESRI's service uses a spatial reference of 4326 and ours is projected as 26918.
3. Our's was not built from an SDC dataset but an uncompressed Network dataset.

Any help is appreciated.

Thanks

MuhammadWaqar_ul_islam

DOES ANY BODY FIND THIS ISSUE SOLVED
I TIRED A LOT DIDNOT FIND ANY THING
I HAVE API 2.2 2.3.2.4 even 3 with arcgis server 10
on Arcinfo network work fine
i m attaching small gdb for ur testing

NorthKarachi.gdb.rar

VesaLaakko

Try to add hierarchy attribute to your network dataset, build and check you use it. Helped for me.

t. Vesa

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