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This example shows how you can implement a custom proxy to make a request for map tiles from the Bing Maps web service.
To customize a web request, handle the MapImageDataProviderBase.WebRequest event. Then, use the web request arguments to specify your custom map request settings (e.g., custom MapWebRequestEventArgs.Credentials , MapWebRequestEventArgs.Headers for a proxy, etc.) to the Bing Maps data provider.
<Window
x:Class ="WebRequest.MainWindow"
xmlns ="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x ="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:dxm ="http://schemas.devexpress.com/winfx/2008/xaml/map"
Title ="MainWindow" Height ="350" Width ="525" >
<Grid >
<dxm:MapControl Name ="mapControl1" >
<dxm:ImageTilesLayer x:Name ="imageTilesLayer" >
<dxm:ImageTilesLayer.DataProvider >
<dxm:BingMapDataProvider BingKey ="INSERT_YOUR_BING_KEY_HERE"
WebRequest ="BingMapDataProvider_WebRequest" />
</dxm:ImageTilesLayer.DataProvider >
</dxm:ImageTilesLayer >
<dxm:VectorLayer >
<dxm:MapDot Location ="54.196353,37.611622" Size ="10" />
</dxm:VectorLayer >
</dxm:MapControl >
</Grid >
</Window >
Imports System
Imports System.Windows
Imports System.Net
Imports DevExpress.Xpf.Map
Imports System.Globalization
Namespace WebRequest
Partial Public Class MainWindow
Inherits Window
Public Sub New ()
InitializeComponent()
End Sub
Private Sub BingMapDataProvider_WebRequest(ByVal sender As Object , ByVal e As MapWebRequestEventArgs)
e.Proxy = proxy
End Sub
Private proxy As New MyProxy()
Public Class MyProxy
Implements IWebProxy
Private credentials_Renamed As ICredentials
Public Property Credentials() As ICredentials Implements IWebProxy.Credentials
Get
Return credentials_Renamed
End Get
Set (ByVal value As ICredentials)
credentials_Renamed = value
End Set
End Property
Public Function GetProxy(ByVal destination As Uri) As Uri Implements IWebProxy.GetProxy
Return destination
End Function
Public Function IsBypassed(ByVal host As Uri) As Boolean Implements IWebProxy.IsBypassed
Return True
End Function
End Class
End Class
End Namespace
using System ;
using System.Windows ;
using System.Net ;
using DevExpress.Xpf.Map ;
using System.Globalization ;
namespace WebRequest {
public partial class MainWindow : Window {
public MainWindow ( ) {
InitializeComponent();
}
private void BingMapDataProvider_WebRequest (object sender, MapWebRequestEventArgs e ) {
e.Proxy = proxy;
}
MyProxy proxy = new MyProxy();
public class MyProxy : IWebProxy {
ICredentials credentials;
public ICredentials Credentials {
get {
return credentials;
}
set {
credentials = value ;
}
}
public Uri GetProxy (Uri destination ) {
return destination;
}
public bool IsBypassed (Uri host ) {
return true ;
}
}
}
}
See Also