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WebClient sending an XDocument

I have an application which is sent an XML Document from a web page. The idea is to act on this XML file, update it as necessary and then send the file back. Now the initial send is done from a web page using Response.Write and is read by a C# WebClient object. All good so far.

However I'm not sure how best to send the resultant XML file back to the web service. I am working in a Windows Mobile 7 application and would prefer to use the WebClient object.

I have constructed the XML file (including some embedded images as CData sections) and effectively just want to call a URL passing the XML in some form. Obviously not as a query string but how?

Bob Learned

I haven't done any Windows 7 development, so I am wondering why you are using the WebClient, instead of adding a web reference, and using the generated proxy to call a web method?

ChrisMDrew

ASKER

The main reason is I expect this to be ported to Android and as such I don't want to be tied into a Microsoft environment. If I stay with WebClient / URI's that will convert easier. Also I'm not writing the web service side of things - this is a traditional ASP web site.

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Bob Learned

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ChrisMDrew

ASKER

I have implemented the web post using the following :-

string webServiceURL = IsolatedStorageHelper.GetObject<string>("blu3server");
string page = "whereabouts_update.aspx";

// Now issue an asynchronous request to post updated data back to the server
Uri serviceUri = new Uri(webServiceURL + page, UriKind.Absolute);
WebClient webClient = new WebClient();

// Upload this to the server
webClient.UploadStringCompleted += new UploadStringCompletedEventHandler(webClient_UploadStringCompleted);
webClient.UploadStringAsync(serviceUri ,xDocument.ToString(SaveOptions.DisableFormatting));

Which seems to work - I have a dummy .aspx file which does nothing but in the webClient_UploadStringCompleted event there are no errors returned. My continuing problem is

1> How do I recover the posted data in the target web page
2> If there is an error how does the target web page report this to the caller?

Probably obvious but not so far to me!

Bob Learned

I don't understand what you mean by " How do I recover the posted data in the target web page"...