<p>I'm testing the basics for exchanging rest messages between a asp.net mvc site and a WCF 3.5 service.
The service is built using the template found in the WCF REST Starter Kit found on codeplex.
I would like to exchange json messages using jquery.
The REST Singleton service is working properly and it also provide examples of all the possible calling adding the help parameter ad the end of the uri.
I arrive to perform GET requests with the built in jquery $.getJSON.
I have problems doing the PUT (for updating values) and POST.</p>

<pre><code>$.ajax({
     type: "PUT",
     dataType: "json",
     url: "http://localhost:1045/Service.svc/?format=json",
     data: '{"Value":testvalue}'
 }); 
</code></pre>

<p>What is the best approach for this? Is it possible not to use Ms. Ajax at all and is it correct to bypass it?</p>

"PUT" and "DELETE" are not supported by all browsers according to jQuery
The type of request to make ("POST" or
  "GET"), default is "GET". Note: Other
  HTTP request methods, such as PUT and
  DELETE, can also be used here, but
  they are not supported by all
  browsers.
http://docs.jquery.com/Ajax/jQuery.ajax#options
I didn't really understand your question though.  Are you having a problem doing a PUT and a POST or just a POST?  Does the GET work fine?
One error that I noticed was your data, notice I added it without quotes.
```
```
$.ajax({
     type: "PUT",
     dataType: "json",
     url: "http://localhost:1045/Service.svc/?format=json",
     data: { Value: "testvalue" }
});
```
```