How do I access a Web Service through a Proxy Server?

The Web Service Proxy Generator by default uses the system proxy settings. Typically these settings are the same settings that are configured for the proxy in Internet Explorer which effectively mimics the system settings.

You can override Http Proxy settings in several ways.

.config File overrides

One of the easiest ways to override configuration settings is via a config file setting that .NET recognizes. You can simply add the following into yourapplication.exe.config and/or vfp9.exe.config:

<configuration>
  <defaultProxy>
    <proxy  proxyaddress="http://127.0.0.1:8888" />      
  </defaultProxy>
  </system.net>   
</configuration>

Explicitly setting Http Proxy Settings in Code

You can explicitly override the proxy settings via code using Proxy property of the native .NET service object (loProxy.oService.Proxy). The following example demonstrates:

DO WebStoreServiceProxy

LOCAL loProxy as WebStoreSerivceProxy
loProxy = CREATEOBJECT("WebStoreServiceProxy")

loBridge = loProxy.oBridge

*** Create the Http Proxy instance and point at Host and Port
loWebProxy = loBridge.CreateInstance("System.Net.WebProxy","127.0.0.1",8888)

*** Optionally create credentials for the proxy
loWebProxy.Credentials = loBridge.CreateInstance("System.Net.NetworkCredential","rstrahl","wwind")

*** Assign the Http Proxy to the .NET instance
loProxy.oService.Proxy = loWebProxy

loItem = loProxy.DownloadInventoryItem("WCONNECT50")
? loItem

The key here is:

loService.Proxy = loBridge.CreateInstance("System.Net.WebProxy","127.0.0.1",8888)

which creates an instance of the WebProxy object. Once you have the Http Proxy you can also assign a user name and password as shown in the longer example above. Do this only if your proxy requires authentication for browsing (which is rare these days).