BingTrafficIncidentDataProvider Class

Allows you to receive information about traffic incidents within a specified area from the Bing Maps service and display incident icons on the map.

Namespace: DevExpress.XtraMap

Assembly: DevExpress.XtraMap.v22.1.dll

Declaration

C#

public class BingTrafficIncidentDataProvider :
    BingMapDataProviderBase

VB.NET

Public Class BingTrafficIncidentDataProvider
    Inherits BingMapDataProviderBase

Remarks

Follow the steps below to create a map with traffic incidents:

• Create an InformationLayer object and add it to the MapControl.Layers collection.

• Create a BingTrafficIncidentDataProvider object and specify its BingKey property. Assign the object to the layer’s DataProvider property.

• Call the provider’s RequestTrafficIncidents method to receive a list of incidents.

To include traffic location codes in the method’s result, enable the BingTrafficIncidentDataProvider.Options.IncludeLocationCodes property.

After you obtain a list of incidents, the provider raises the TrafficIncidentCalculated event. You can handle the event to access the collection of received incidents or add custom logic.

Example

The following code displays traffic incidents that occur in the specified area:

C#

using DevExpress.Map;
using DevExpress.XtraMap;
using System;
using System.Windows.Forms;

namespace TrafficIncidents {
    public partial class Form1 : Form {

        private void Form1_Load(object sender, EventArgs e) {
            // Create and configure a background layer.
            ImageLayer imageLayer = new ImageLayer();
            mapControl1.Layers.Add(imageLayer);
            BingMapDataProvider provider = new BingMapDataProvider();
            imageLayer.DataProvider = provider;
            provider.BingKey = "Insert your Bing Key.";
            provider.Kind = BingMapKind.RoadLight;

            // Create an information layer and add it to the map.
            InformationLayer infoLayer = new InformationLayer();
            mapControl1.Layers.Add(infoLayer);

            // Create and configure a BingTrafficIncidentDataProvider. Assign it to the information layer.
            BingTrafficIncidentDataProvider trafficIncidentDataProvider = new BingTrafficIncidentDataProvider();
            infoLayer.DataProvider = trafficIncidentDataProvider;
            trafficIncidentDataProvider.BingKey = "Insert your Bing Key.";
            BingTrafficIncidentSeverity incidentSeverity = BingTrafficIncidentSeverity.LowImpact | BingTrafficIncidentSeverity.Minor | BingTrafficIncidentSeverity.Moderate | BingTrafficIncidentSeverity.Serious;
            BingTrafficIncidentType incidentType = BingTrafficIncidentType.Accident | BingTrafficIncidentType.Construction | BingTrafficIncidentType.Miscellaneous;
            trafficIncidentDataProvider.RequestTrafficIncidents(new SearchBoundingBox( -115.338457, 36.268745, -114.988268, 36.1010376),
                                                                incidentSeverity,
                                                                incidentType);
            infoLayer.DataRequestCompleted += OnDataRequestCompleted;
        }
        private void OnDataRequestCompleted(object sender, RequestCompletedEventArgs e) {
            // Call the ZoomToFitLayerItems method to zoom the map so that it displays the obtained incidents.
            mapControl1.ZoomToFitLayerItems();
        }
    }
}

VB.NET

Imports DevExpress.Map
Imports DevExpress.XtraMap
Imports System
Imports System.Windows.Forms

Namespace TrafficIncidents
    Public Partial Class Form1
        Inherits Form

        Private Sub Form1_Load(ByVal sender As Object, ByVal e As EventArgs)
            ' Create and configure a background layer.
            Dim imageLayer As ImageLayer = New ImageLayer()
            mapControl1.Layers.Add(imageLayer)
            Dim provider As BingMapDataProvider = New BingMapDataProvider()
            imageLayer.DataProvider = provider
            provider.BingKey = "Insert your Bing Key."
            provider.Kind = BingMapKind.RoadLight

            ' Create an information layer and add it to the map.
            Dim infoLayer As InformationLayer = New InformationLayer()
            mapControl1.Layers.Add(infoLayer)

            ' Create and configure a BingTrafficIncidentDataProvider. Assign it to the information layer.
            Dim trafficIncidentDataProvider As BingTrafficIncidentDataProvider = New BingTrafficIncidentDataProvider()
            infoLayer.DataProvider = trafficIncidentDataProvider
            trafficIncidentDataProvider.BingKey = "Insert your Bing Key."
            Dim incidentSeverity As BingTrafficIncidentSeverity = BingTrafficIncidentSeverity.LowImpact Or BingTrafficIncidentSeverity.Minor Or BingTrafficIncidentSeverity.Moderate Or BingTrafficIncidentSeverity.Serious
            Dim incidentType As BingTrafficIncidentType = BingTrafficIncidentType.Accident Or BingTrafficIncidentType.Construction Or BingTrafficIncidentType.Miscellaneous
            trafficIncidentDataProvider.RequestTrafficIncidents(New SearchBoundingBox(-115.338457, 36.268745, -114.988268, 36.1010376), incidentSeverity, incidentType)
            infoLayer.DataRequestCompleted += AddressOf OnDataRequestCompleted
        End Sub

        Private Sub OnDataRequestCompleted(ByVal sender As Object, ByVal e As RequestCompletedEventArgs)
            ' Call the ZoomToFitLayerItems method to zoom the map so that it displays the created isochrone.
            mapControl1.ZoomToFitLayerItems()
        End Sub
    End Class
End Namespace

Implements

ISupportWebRequest

Inheritance

Object

InformationDataProviderBase

WebInformationDataProvider

BingMapDataProviderBase

BingTrafficIncidentDataProvider