如何将WebService添加到C＃WinForm？

Question

How I can add Webservice to WinForm ?

I do not have this Option, why ?

thank's in advance

Answer 1

Do you mean you want to consume a webservice? Or Host a web service?

If you want to consume a web service, Add WebReference as billb suggested.

If you want to host a web service, it is not possible to host an ASMX web service. However, it is possible to host a WCF web service.

(Example Does not include any error handling or things that you would want.)

Declare your contract

[ServiceContract]
public interface  IWebGui
{
    [OperationContract]
    [WebGet(UriTemplate= "/")]
    Stream GetGrid();
}

Implement your contract

[ServiceBehavior(InstanceContextMode=InstanceContextMode.Single)]
public class WebGui : IWebGui
{

    public Stream GetGrid()
    {

        string output = "test";


        MemoryStream ms = new MemoryStream(System.Text.Encoding.UTF8.GetBytes(output));
        WebOperationContext.Current.OutgoingResponse.ContentType = "text/html";
        return ms;
    }

}

Then start a WebServiceHost to serve the call

        WebGui webGui = new WebGui();

        host = new WebServiceHost(webGui, new Uri("http://localhost:" + Port));
        var bindings = new WebHttpBinding();

        host.AddServiceEndpoint(typeof(IWebGui), bindings, "");
        host.Open();

Answer 2

Follow these steps

1. Right click on the Project in Visual Studio
2. Select Add Web Reference
3. Enter URL & proceed

When you don't see that option

1. Right click on the Project in Visual Studio
2. Select Add Service Reference
3. Press "Advanced" Button
4. Press "Add Web Reference" Button
5. Enter URL & proceed

Answer 3

When you right click on the Project in Visual Studio, select Add Web Reference. You can then instantiate the web reference in your WinForm.