Question

Hi i need to post some data to a web server from windows phone 7 app, i have following url

someurl/devices.json

and i need to send two arguments with it

"externalDeviceId"  and "platform" as parameters

can any one let me know how to do it. i have been trying something like this

   WebClient client = new WebClient();
      client.UploadStringCompleted += new UploadStringCompletedEventHandler(webClient_UploadStringCompleted);
      client.Headers["Content-Type"] = "application/x-www-form-urlencoded";
      client.Encoding = Encoding.UTF8;
      string argument = "externalDeviceId=123456789987654321"+"&platform=wp7"
      client.UploadStringAsync(new Uri("someurl/devices.json"), "POST", argument);

but i get a web exception in the webClient_UploadStringCompleted callback.

i also tried something like this

soemurl/devices.json&externalDeviceId=123456789987654321&Platform=windowsphone7 but this is not working too get an error 404.

let me know where i am going wrong. this is on windows phone 7.

well it worked, if i comment out the header and encoding line it works

WebClient client = new WebClient();
client.UploadStringCompleted += new 
UploadStringCompletedEventHandler(webClient_UploadStringCompleted);
// client.Headers["Content-Type"] = "application/x-www-form-urlencoded";
 //client.Encoding = Encoding.UTF8;
 string argument = "externalDeviceId=123456789987654321"+"&platform=wp7"
 client.UploadStringAsync(new Uri("soemurl    
 /devices.json"), "POST", argument);

thanks Tetsujin no Oni san for helping … i was going in circles from last one day and just some discussion and it helped fixing this problem

Answer 1

With your API URI as given, what happens if you make your arguments actually follow the correct protocol for query string parameters?

http://api.maxchatter.com/75b7bb32e5fc752546263a/devices.json?externalDeviceId=123456789987654321&Platform=windowsphone7