BingTrafficIncidentDataProvider.RequestTrafficIncidents(SearchBoundingBox, BingTrafficIncidentSeverity, BingTrafficIncidentType) Method

Requests incidents for the specified region.

Namespace: DevExpress.Xpf.Map

Assembly: DevExpress.Xpf.Map.v21.2.dll

NuGet Package: DevExpress.Wpf.Map

Declaration

C#

public void RequestTrafficIncidents(
    SearchBoundingBox boundingBox,
    BingTrafficIncidentSeverity severity,
    BingTrafficIncidentType type
)

VB.NET

Public Sub RequestTrafficIncidents(
    boundingBox As SearchBoundingBox,
    severity As BingTrafficIncidentSeverity,
    type As BingTrafficIncidentType
)

Parameters

Name	Type	Description
boundingBox	SearchBoundingBox	Limits the area for which traffic incidents are requested.
severity	BingTrafficIncidentSeverity	Specifies the severity level of incidents.
type	BingTrafficIncidentType	Specifies the type of incidents.

Example

How to: Display Traffic Incidents on the Map

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

XAML

<Window
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
        xmlns:local="clr-namespace:TrafficIncidents"
        xmlns:dxm="http://schemas.devexpress.com/winfx/2008/xaml/map" x:Class="TrafficIncidents.MainWindow"
        mc:Ignorable="d"
        Title="MainWindow" Height="450" Width="800" Loaded="OnWindowLoaded">
    <Grid>
        <dxm:MapControl x:Name="mapControl">
            <dxm:ImageLayer>
                <dxm:BingMapDataProvider BingKey="Insert your Bing Key." 
                                         Kind="RoadLight"/>
            </dxm:ImageLayer>
            <dxm:InformationLayer DataRequestCompleted="OnDataRequestCompleted">
                <dxm:BingTrafficIncidentDataProvider x:Name="incidentProvider" 
                                                     BingKey="Insert your Bing Key." />
            </dxm:InformationLayer>
        </dxm:MapControl>
    </Grid>
</Window>

C#

using DevExpress.Xpf.Map;
using System.Windows;

namespace TrafficIncidents {
    public partial class MainWindow : Window {
        private void OnWindowLoaded(object sender, RoutedEventArgs e) {
            BingTrafficIncidentSeverity incidentSeverity = BingTrafficIncidentSeverity.LowImpact | BingTrafficIncidentSeverity.Minor | 
                                                                BingTrafficIncidentSeverity.Moderate | BingTrafficIncidentSeverity.Serious;
            BingTrafficIncidentType incidentType = BingTrafficIncidentType.Accident | BingTrafficIncidentType.Construction | 
                                                        BingTrafficIncidentType.Miscellaneous | BingTrafficIncidentType.Weather;
            SearchBoundingBox searchArea = new SearchBoundingBox { WestLongitude = -115.338457, NorthLatitude = 36.268745, 
                                                                    EastLongitude = -114.988268, SouthLatitude= 36.1010376 };
            incidentProvider.RequestTrafficIncidents( searchArea, incidentSeverity, incidentType);
        }
        private void OnDataRequestCompleted(object sender, RequestCompletedEventArgs e) {
            // Zoom the map so that it displays the obtained incidents.
            mapControl.ZoomToFitLayerItems();
        }
    }
}

VB.NET

Imports DevExpress.Xpf.Map

Namespace TrafficIncidents
    Public Partial Class MainWindow
        Inherits Window

        Private Sub OnWindowLoaded(ByVal sender As Object, ByVal e As RoutedEventArgs)
            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 Or BingTrafficIncidentType.Weather
            Dim searchArea As SearchBoundingBox = New SearchBoundingBox With {
                .WestLongitude = -115.338457,
                .NorthLatitude = 36.268745,
                .EastLongitude = -114.988268,
                .SouthLatitude = 36.1010376
            }
            incidentProvider.RequestTrafficIncidents(searchArea, incidentSeverity, incidentType)
        End Sub

        Private Sub OnDataRequestCompleted(ByVal sender As Object, ByVal e As RequestCompletedEventArgs)
            ' Zoom the map so that it displays the obtained incidents.
            mapControl.ZoomToFitLayerItems()
        End Sub
    End Class
End Namespace