RequestResultBase.FaultReason Property

Returns the fault reason of a request.

Namespace: DevExpress.Xpf.Map

Assembly: DevExpress.Xpf.Map.v18.2.dll

Declaration

C#

public string FaultReason { get; }

VB.NET

Public ReadOnly Property FaultReason As String

Property Value

Type	Description
String	A String value.

Example

This example demonstrates how to manually process received Bing Search request results.

• Create a InformationLayer object and add it to the MapControl.Layers collection. Assign the BingSearchDataProvider object to the InformationLayer.DataProvider property.
• Handle the BingSearchDataProvider.SearchCompleted event. In the event handler, implement the request result processing.

Note

If you run the application, and see a window with the following error message: ”The specified Bing Maps key is invalid. To create a developer account, refer to https://www.microsoft.com/en-us/maps/create-a-bing-maps-key”, refer to the following tutorial: How to: Get a Bing Maps Key.

Note

A complete sample project is available at https://github.com/DevExpress-Examples/how-to-manually-process-search-using-a-custom-search-panel-t189413.

MainWindow.xaml.vb

Private Sub searchProvider_SearchCompleted(ByVal sender As Object, ByVal e As BingSearchCompletedEventArgs)
    If e.Cancelled Then
        Return
    End If
    If e.RequestResult.ResultCode <> RequestResultCode.Success Then
        Return
    End If

    Dim sb As New StringBuilder()

    Dim requestResult As SearchRequestResult = e.RequestResult
    sb.Append(String.Format("Result Code: {0}" & vbLf, requestResult.ResultCode))
    If String.IsNullOrEmpty(requestResult.FaultReason) Then
        sb.Append(String.Format("Fault Reason: (none)" & vbLf, requestResult.FaultReason))
    Else
        sb.Append(String.Format("Fault Reason: {0}" & vbLf, requestResult.FaultReason))
    End If
    sb.Append(String.Format("Search Location: {0}" & vbLf, requestResult.Keyword))
    sb.Append(String.Format("Estimated Matches: {0}" & vbLf, requestResult.EstimatedMatches))
    sb.Append(String.Format("SearchResults:" & vbLf & "{0}", ProcessLocationList(requestResult.SearchResults)))

    tbSearchResult.Text = sb.ToString()

End Sub

Private Function ProcessLocationList(ByVal results As List(Of LocationInformation)) As String
    If results Is Nothing Then
        Return ""
    End If

    Dim sb As New StringBuilder()
    For i As Integer = 0 To results.Count - 1
        sb.Append(String.Format("{0}) {1}", i + 1, ProcessLocationInformation(results(i))))
    Next i
    Return sb.ToString()
End Function
Private Function ProcessLocationInformation(ByVal info As LocationInformation) As String
    If info Is Nothing Then
        Return ""
    End If

    Dim sb As New StringBuilder()

    sb.Append(String.Format("{0}" & vbLf, info.DisplayName))
    sb.Append(String.Format(vbTab & "Adress: {0}" & vbLf, info.Address))
    sb.Append(String.Format(vbTab & "Location: {0}" & vbLf, info.Location))
    Return sb.ToString()
End Function

MainWindow.xaml.cs

private void searchProvider_SearchCompleted(object sender, BingSearchCompletedEventArgs e) {
    if (e.Cancelled) return;
    if (e.RequestResult.ResultCode != RequestResultCode.Success) return;

    StringBuilder sb = new StringBuilder();

    SearchRequestResult requestResult = e.RequestResult;
    sb.Append(String.Format("Result Code: {0}\n", requestResult.ResultCode));
    if (String.IsNullOrEmpty(requestResult.FaultReason))
        sb.Append(String.Format("Fault Reason: (none)\n", requestResult.FaultReason));
    else
        sb.Append(String.Format("Fault Reason: {0}\n", requestResult.FaultReason));
    sb.Append(String.Format("Search Location: {0}\n", requestResult.Keyword));
    sb.Append(String.Format("Estimated Matches: {0}\n", requestResult.EstimatedMatches));
    sb.Append(String.Format("SearchResults:\n{0}", ProcessLocationList(requestResult.SearchResults)));

    tbSearchResult.Text = sb.ToString();

}

string ProcessLocationList(List<LocationInformation> results) {
    if (results == null) return "";

    StringBuilder sb = new StringBuilder();
    for (int i = 0; i < results.Count; i++) {
        sb.Append(String.Format("{0}) {1}", i + 1, ProcessLocationInformation(results[i])));
    }
    return sb.ToString();
}
string ProcessLocationInformation(LocationInformation info) {
    if (info == null) return "";

    StringBuilder sb = new StringBuilder();

    sb.Append(String.Format("{0}\n", info.DisplayName));
    sb.Append(String.Format("\tAdress: {0}\n", info.Address));
    sb.Append(String.Format("\tLocation: {0}\n", info.Location));
    return sb.ToString();
}

Related GitHub Examples

The following code snippets (auto-collected from DevExpress Examples) contain references to the FaultReason property.

Note

The algorithm used to collect these code examples remains a work in progress. Accordingly, the links and snippets below may produce inaccurate results. If you encounter an issue with code examples below, please use the feedback form on this page to report the issue.

C#

how-to-manually-process-search-using-a-custom-search-panel-t189413/CS/MapControl_SearchPanel/MainWindow.xaml.cs#L35

sb.Append(String.Format("Result Code: {0}\n", requestResult.ResultCode));
if (String.IsNullOrEmpty(requestResult.FaultReason))
    sb.Append(String.Format("Fault Reason: (none)\n", requestResult.FaultReason));

how-to-get-information-about-a-geopoint-using-the-bing-geocode-web-service-e4258/CS/GetLocationInformation/MainWindow.xaml.cs#L32

resultList.Append(String.Format("Status: {0}\n", result.ResultCode));
resultList.Append(String.Format("Fault reason: {0}\n", result.FaultReason));
resultList.Append(String.Format("______________________________\n"));

VB.NET

how-to-manually-process-search-using-a-custom-search-panel-t189413/VB/MapControl_SearchPanel/MainWindow.xaml.vb#L42

sb.Append(String.Format("Result Code: {0}" & vbLf, requestResult.ResultCode))
If String.IsNullOrEmpty(requestResult.FaultReason) Then
    sb.Append(String.Format("Fault Reason: (none)" & vbLf, requestResult.FaultReason))

how-to-get-information-about-a-geopoint-using-the-bing-geocode-web-service-e4258/VB/GetLocationInformation/MainWindow.xaml.vb#L39

resultList.Append(String.Format("Status: {0}" & ControlChars.Lf, result.ResultCode))
resultList.Append(String.Format("Fault reason: {0}" & ControlChars.Lf, result.FaultReason))
resultList.Append(String.Format("______________________________" & ControlChars.Lf))

how-to-get-routes-to-the-destination-point-using-the-bing-map-route-data-service-e4250/VB/CalculateRoutesFromMajorRoads/MainWindow.xaml.vb#L25

resultList.Append(String.Format("Status: {0}" & ControlChars.Lf, result.ResultCode))
resultList.Append(String.Format("Fault reason: {0}" & ControlChars.Lf, result.FaultReason))
resultList.Append(ProcessIntermediatePoints(result.IntermediatePoints))