Question

I’m stuck on one small problem that stop development for a feature I’m trying to implement.

I currently have a WCF Web Service created with the following code:

 [ServiceContract(Namespace = "http://Sinvise.Service/")]
    public interface ISinvise
    {
        [OperationContract]
        void Output(string value);
    }

    class SinviseService : ISinvise
    {
        second sec = new second();

        public void Output(string value)
        {
            sec.message(value);
        }
    }

Main Method:

var ip = getIP();
            Uri baseAddr = new Uri("http://"+ip+":60185/Sinvise");
            ServiceHost localHost = new ServiceHost(typeof(SinviseService), baseAddr);
            Console.WriteLine("Current System IP: " + getIP());
            try
            {
                Process.Start(baseAddr.AbsoluteUri);
                localHost.AddServiceEndpoint(typeof(ISinvise), new BasicHttpBinding(), "SinviseService");

                ServiceMetadataBehavior smb = new ServiceMetadataBehavior();
                smb.HttpGetEnabled = true;
                localHost.Description.Behaviors.Add(smb);

                localHost.Open();
                Console.WriteLine("Service initialized.");
                Console.WriteLine("Press the ENTER key to terminate service.");
                Console.ReadLine();

                localHost.Close();
            }
            catch (CommunicationException ex)
            {
                Console.WriteLine("Oops! Exception: {0}", ex.Message);
                localHost.Abort();
            }

The application sets up the web service to be called in my application, now what I want to do is use a HTML page to call the operations. They’re simple operations that pass values across to the application.

Now I know that HTML can’t do this on it’s own, and PHP won’t be an option on this end as it will require me to package a web server and PHP in my application deployment (which I can’t do as my application requires payment therefore no opensource software can be included).

I am having a problem using jQuery as it can not be used in a cross domain manner.

The webservice is not related to ASP.NET but I need something that will allow users of my software to be able to use the HTML page to make calls to the web service.

Thanks

Answer 1

If my understanding is correct and based on this:

I am having a problem using jQuery as it can not be used in a cross domain manner.

Your service is in another domain, then do it the simplest way, create a REST service in your domain and then wrap the call to the external service

See this question

This is a walkthrough creating a REST service (without SVC file and this can be used in a ASP.Net or MVC app)

Datalist Delete Command Event implementation using Page Methods

This is a full application you can download that uses the REST service

http://sdrv.ms/LJJz1K

Example:

[ServiceContract]
public interface IMyService
{
    [OperationContract]
    [WebInvoke(
        ResponseFormat = WebMessageFormat.Json, 
        RequestFormat = WebMessageFormat.Json,
        UriTemplate = "/DeleteFromService",
        Method = "DELETE")]
    void Delete(int id);
}

[AspNetCompatibilityRequirements(RequirementsMode = AspNetCompatibilityRequirementsMode.Allowed)]
public class MyService : IMyService
{
    public void Delete(int id)
    {
        // wrap here the call to your external service
        // simulate a long process
        Thread.Sleep(5000);
    }
}

In the page

<script type="text/javascript" language="javascript">
        function deleteFromService() {
            $.blockUI();
            $.ajax({
                cache: false,
                type: "DELETE",
                async: true,
                url: "/DeleteFromService",
                data: "3", // get your id to delete
                contentType: "application/json",
                dataType: "json",
                success: function () {
                    $(document).ajaxStop($.unblockUI); 
                    alert("done");
                },
                error: function (xhr) {
                    $(document).ajaxStop($.unblockUI); 
                    alert(xhr.responseText);
                }
            });
        }
        jQuery().ready(function () {
                        $("#myButton").click(deleteFromService);
        });
    </script>