AzureTrafficIncidentCalculationResult Class

Contains traffic incident results received from the Microsoft Azure service.

Namespace: DevExpress.XtraMap

Assembly: DevExpress.XtraMap.v24.2.dll

Declaration

C#

public class AzureTrafficIncidentCalculationResult :
    RequestResultBase

VB.NET

Public Class AzureTrafficIncidentCalculationResult
    Inherits RequestResultBase

Related API Members

The following members return AzureTrafficIncidentCalculationResult objects:

• AzureTrafficIncidentCalculatedEventArgs.RequestResult

Remarks

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

This example obtains a list of incidents in the specified area from the Azure Maps service and displays information about obtained incidents in a MemoEdit control:

C#

using DevExpress.XtraMap;
using System.Text;
// ...
const string key = "your key";
AzureTrafficIncidentDataProvider trafficIncidentProvider;
// ...
public Form1() {
    InitializeComponent();
    trafficIncidentProvider = new AzureTrafficIncidentDataProvider {
        AzureKey = key 
    };
    imageLayer2.DataProvider = new AzureMapDataProvider() {
        AzureKey = key,
        Tileset = AzureTileset.BaseHybridRoad
    };
    imageLayer1.DataProvider = new AzureMapDataProvider() {
        AzureKey = key,
        Tileset = AzureTileset.Imagery,
    };
    informationLayer1.DataProvider = trafficIncidentProvider;
    informationLayer1.DataRequestCompleted += OnDataRequestCompleted;
    trafficIncidentProvider.TrafficIncidentCalculated += OnTrafficIncidentCalculated;  
    trafficIncidentProvider.RequestTrafficIncidents(new SearchBoundingBox(-115.338457, 36.268745, 
      -114.988268, 36.1010376), 18, -1,
      new AzureTrafficIncidentOptions {
          OriginalPosition = false,
          IncidentGeometryType = AzureTrafficIncidentGeometryType.Shifted
      });
}
void OnDataRequestCompleted(object sender, RequestCompletedEventArgs e) {
    mapControl1.ZoomToFitLayerItems();
}
private void OnTrafficIncidentCalculated(object sender, AzureTrafficIncidentCalculatedEventArgs e) {
    if (e.Cancelled) return;
    if (e.RequestResult.ResultCode != RequestResultCode.Success) {
        memoEdit1.Text = "Traffic incidents were not found for this area.";
        return;
    }
    StringBuilder resultList = new StringBuilder("");
    int resCounter = 1;
    foreach (AzureTrafficIncidentResult resultInfo in e.RequestResult.IncidentResults) {
        resultList.Append(string.Format("Incident {0}:  \r\n", resCounter));
        resultList.Append(string.Format("Cause: {0}\r\n", resultInfo.Cause));
        resultList.Append(string.Format("Description: {0}\r\n", resultInfo.Description));
        resultList.Append(string.Format("Start Time: {0}\r\n", resultInfo.StartDate));
        resultList.Append(string.Format("End Time: {0}\r\n", resultInfo.EndDate));
        resultList.Append(string.Format("Lat: {0}, Lon: {1}\r\n", resultInfo.Point.Latitude, resultInfo.Point.Longitude));
        resultList.Append(string.Format("_______________________\r\n"));
        resCounter++;
    }
    memoEdit1.Text = resultList.ToString();
}

VB.NET

Imports Microsoft.VisualBasic
Imports DevExpress.XtraMap
Imports System.Text
' ...
Private Const key As String = "your key"
Private trafficIncidentProvider As AzureTrafficIncidentDataProvider
' ...
Public Sub New()
    InitializeComponent()
    trafficIncidentProvider = New AzureTrafficIncidentDataProvider With {.AzureKey = key}
    imageLayer2.DataProvider = New AzureMapDataProvider() With {
        .AzureKey = key,
        .Tileset = AzureTileset.BaseHybridRoad
    }
    imageLayer1.DataProvider = New AzureMapDataProvider() With {
        .AzureKey = key,
        .Tileset = AzureTileset.Imagery
    }
    informationLayer1.DataProvider = trafficIncidentProvider
    AddHandler informationLayer1.DataRequestCompleted, AddressOf OnDataRequestCompleted
    AddHandler trafficIncidentProvider.TrafficIncidentCalculated, AddressOf OnTrafficIncidentCalculated
    trafficIncidentProvider.RequestTrafficIncidents(New SearchBoundingBox(-115.338457, 36.268745, -114.988268, 36.1010376), 18, -1, New AzureTrafficIncidentOptions With {
        .OriginalPosition = False,
        .IncidentGeometryType = AzureTrafficIncidentGeometryType.Shifted
    })
End Sub
Private Sub OnDataRequestCompleted(ByVal sender As Object, ByVal e As RequestCompletedEventArgs)
    mapControl1.ZoomToFitLayerItems()
End Sub
Private Sub OnTrafficIncidentCalculated(ByVal sender As Object, ByVal e As AzureTrafficIncidentCalculatedEventArgs)
    If e.Cancelled Then
        Return
    End If
    If e.RequestResult.ResultCode <> RequestResultCode.Success Then
        memoEdit1.Text = "Traffic incidents were not found for this area."
        Return
    End If
    Dim resultList As New StringBuilder("")
    Dim resCounter As Integer = 1
    For Each resultInfo As AzureTrafficIncidentResult In e.RequestResult.IncidentResults
        resultList.Append(String.Format("Incident {0}:  " & vbCrLf, resCounter))
        resultList.Append(String.Format("Cause: {0}" & vbCrLf, resultInfo.Cause))
        resultList.Append(String.Format("Description: {0}" & vbCrLf, resultInfo.Description))
        resultList.Append(String.Format("Start Time: {0}" & vbCrLf, resultInfo.StartDate))
        resultList.Append(String.Format("End Time: {0}" & vbCrLf, resultInfo.EndDate))
        resultList.Append(String.Format("Lat: {0}, Lon: {1}" & vbCrLf, resultInfo.Point.Latitude, resultInfo.Point.Longitude))
        resultList.Append(String.Format("_______________________" & vbCrLf))
        resCounter += 1
    Next resultInfo
    memoEdit1.Text = resultList.ToString()
End Sub

Inheritance

Object

RequestResultBase

AzureTrafficIncidentCalculationResult