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How to: Customize a Web Request for a Map Web Service

  • 2 minutes to read

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>
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