jQuery WCF Service MVC2 VS2010 .NET 4.0 call with parameters fails

Question

In Visual Studio 2010 I created a new Ajax enabled WCF Service

[ServiceContract(Namespace = "TestWCFAjax.Bridge")]
[AspNetCompatibilityRequirements(RequirementsMode = AspNetCompatibilityRequirementsMode.Allowed)]
public class Bridge
{
    [OperationContract]
    public string DoWork()
    {
        return "jQuery WCF call without parameters from MVC2 works." ; 
    }

    [OperationContract]
    public string DoWork1(string parm)
    {
        return parm + " jQuery WCF call with parameters from MVC2 fails";
    }

In the Home Controllers Index.aspx view I add the jQuery:

function CallWebMethod() {

$.ajax(
{
     type: "POST",
contentType: "application/json; charset-utf-8",
url: "http://localhost:1452/Bridge.svc/DoWork1",
dataType: "json",
data: '{"parm":"test"}',
error: jqueryError,
success: function (msg) {
     alert("back");
     var divForResult = document.getElementById("test");
     divForResult.innerHTML = "Result: <b>" + msg.d + "</b>";
    }
 })
}

function jqueryError(request, status, error) {
    alert(request.responseText + " " + status + " " + error);
}

(using the built-in Web Server in VS 2010)

When I call DoWork, it works fine. When I call DoWork1 it always returns "error undefined" and the WCF call never happens.

I've tried every combination of: [WebInvoke(Method = "POST", BodyStyle = WebMessageBodyStyle.WrappedRequest, ResponseFormat = WebMessageFormat.Json, RequestFormat = WebMessageFormat.Json)] I can think of and it does not help.

I must be missing something simple.

There are MANY posting about how to make this work, and other than the "no parameter" version, none have worked for me.

Can anyone post a sample MVC2 jQuery 1.4 .NET 4.0 WCF VS2010 working sample or spot the likely error?

Thanks.

how did you configure your base address on the wcf config? Is the Bridge.svc included in it? Is it mandatory to put this? Tks — Pascal

Rob Rob · Accepted Answer · 2010-04-22T18:04:26

contentType: "application/json; charset-utf-8",

should be

contentType: "application/json; charset=utf-8",

jQuery WCF Service MVC2 VS2010 .NET 4.0 call with parameters fails

2 Answers