WCF - getting the below error when making an AJAX call from jQuery.

[jaikanthn]

Hi,

I'm new to WCF.

I'm getting the below error when I try to call a WCF service from jQuery.

Error Code 415 - 'Cannot process the message because the content type 'application/json; charset=utf-8' was not the expected type 'text/xml; charset=utf-8'.

Here is the ajax call from jQuery:-

$.ajax({
type: "POST",
url: "Service.svc/ConvertTemperatureSimple",
data: 2,
contentType: "application/json; charset=utf-8",
dataType: "json",
success: function () {
alert("success");
},
error: function (err) {
alert(err.status + " - " + err.statusText);
}
});

And here is what I have in my web.config file:-

<system.serviceModel>
<behaviors>
<serviceBehaviors>
<behavior>
<serviceMetadata httpGetEnabled="true" />
</behavior>
</serviceBehaviors>
</behaviors>
</system.serviceModel>


And here is OperationContart I have in the Service.svc.cs file:-

[OperationContract]
[WebInvoke(Method = "POST", RequestFormat = WebMessageFormat.Json, ResponseFormat = WebMessageFormat.Json, BodyStyle = WebMessageBodyStyle.Wrapped)]
decimal ConvertTemperatureSimple(decimal t, string unit);

I'm using WCF 4 & VS 2010. Please let me know if you need additional information.

I even tried putting the below in web.config but that didn't help.

<protocolMapping>
<add scheme="http" binding="wsHttpBinding" bindingConfiguration="" />
</protocolMapping>

This time it gave me this error:-

415 - Cannot process the message because the content type 'application/json; charset=utf-8' was not the expected type 'application/soap+xml; charset=utf-8'.

I can't get this to work. I'm thinking there must be something incorrect in my web.config file. Any help is appreciated.

Thanks
Jai