Thanks for the info. How exactly are you writing directly to the
response using WCF? My IIS hosted WCF service is basically just
acting like a proxy to a windows hosted WCF service, so they both use
the same contract, but the IIS hosted service is a REST based
service. Is there a way to maintain this uniformity of contracts,
while writing directly to the response of the IIS service?
On Oct 23, 8:22 am, tenaciousd <[EMAIL PROTECTED]> wrote:
> If you're going to do cross-domain calls you can't do a POST, only a
> GET. I think even if you specify POST as your type jQuery will
> convert it to a GET if your datatype is jsonp (check their doc but I'm
> pretty sure that's the case).
>
> As for WCF the key is just making sure that you wrap your return in
> the callback method and write it to the Response. In other words, you
> can't simply have a WCF endpoint that returns a json-formatted
> object. Instead you need to write something like
> "callbackMethodName(" + yourJSONObject + ");" to the Response. Once
> you've done this jQuery will execute the callback call, in which it
> will do an eval() on yourJSONObject and then call the success method,
> passing it the JSON object in the data parameter. At that point you
> will have dot notation on your JSON object.
>
> On Oct 22, 7:31 pm, RWF <[EMAIL PROTECTED]> wrote:
>
> > I am using WCF too, have you done projects that require an $.ajax POST
> > request to a WCF service cross site? If you have, how did come up
> > with a server proxy to allow for cross site communication?
>
> > On Oct 10, 2:01 pm, tenaciousd <[EMAIL PROTECTED]> wrote:
>
> > > Nevermind. The fundamental issue was that the json object wrapped in
> > > the callback name does, in fact, need to be written to the Response.
> > > I'm an idiot. Anyway, it's working now. If others hit the same
> > > jquery ->jsonp-> wcf issue let me know.
>
> > > On Oct 10, 12:07 pm, tenaciousd <[EMAIL PROTECTED]> wrote:
>
> > > > I'm using jQuery $.ajax to make a cross-domainjsonpcall to a WCF
> > > > service. The call is working fine, entering the service endpoint, but
> > > > the callback method never fires. I've tried many permutations of
> > > > changes and can't seem to get this to work.
>
> > > > The WCF endpoint is returning a string (NOT doing a Response.Write)
> > > > that contains a json object inside the callback wrapper (e.g.
> > > > "jsonp123( {"Author":"John Doe","Price":"$35.90"} )" ) and the content-
> > > > type returned from the service is application/json; charset=utf-8.
>
> > > > $.ajax call is below. Any help is much appreciated.
>
> > > > var data = {"ISBN" : $("#isbn1").val()};
>
> > > > $.ajax({
> > > > type: "GET",
> > > > cache: false,
> > > > url: "http://localhost:63132/Widget.svc/GetProductInfo";,
> > > > scriptCharset: "utf-8",
> > > > dataType: "jsonp",
> > > > data: data,
> > > > success: function(data, textStatus){
> > > > alert("success");
> > > > },
> > > > error: function(XMLHttpRequest, textStatus,
> > > > errorThrown){
> > > > alert('error');
> > > > }
> > > > });
