call asp.net webmethod in windows project

Question

How do I call this WebMethod in ASP.NET from a Windows application?

I have tried using web request post method, but it is returning the XML of the ASP.NET page.

Here is my web method:

[WebMethod()]
public static string Senddata(string value)
{
    return "datareceived" + value;
}

Right click on project in solution explorer, Add service reference , specify the URL of your web service. That will create a proxy class in your project, use that to call your method. — Habib
– Habib, Commented Oct 25, 2013 at 18:47

Aidan Connelly · Accepted Answer · 2016-08-09 13:31:15Z

6

Try this:

var theWebRequest = HttpWebRequest.Create("http://YOURURL/YOURPAGE.aspx/Senddata");
theWebRequest.Method = "POST";
theWebRequest.ContentType = "application/json; charset=utf-8";
theWebRequest.Headers.Add(HttpRequestHeader.Pragma, "no-cache");

using (var writer = theWebRequest.GetRequestStream()) 
{
    string send = null;
    send = "{\"value\":\"test\"}";

    var data = Encoding.ASCII.GetBytes(send);

    writer.Write(data, 0, data.Length);
}

var theWebResponse = (HttpWebResponse)theWebRequest.GetResponse();
var theResponseStream = new StreamReader(theWebResponse.GetResponseStream());

string result = theResponseStream.ReadToEnd();

// Do something with the result
TextBox1.Text = result;

Note: You need to replace YOURURL and YOURPAGE with real values.

edited Aug 9, 2016 at 13:31

Aidan Connelly

1943 silver badges14 bronze badges

answered Oct 25, 2013 at 19:03

Karl Anderson

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3 Comments

L202 Over a year ago

thanks a lot it really worked.. but what if we do not know the parameter is "value"?

Karl Anderson Over a year ago

As far as I know, the name of the parameter must match, what scenario would you not know the parameter name?

L202 Over a year ago

no i dont know that is the problem i even dont know the method name. i was jus given the "somewebsite.com/somthing.aspx"

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