We Know Web services are a category of software components that provide functionality over a network.Comparing to other protocols HTTP (Hyper text transfer protocol) is the powerful protocol in network.

  We can very easily access a web service using HTTP-POST Method.

c# Code:

string WSurl = ConfigurationSettings.AppSettings["URL"].ToString();

string Request_Xml = Create yours soap request xml here.

Xmldocument xmldoc = new Xmldocument ();

xmldoc.LoadXml(Request_Xml);

HttpWebRequest wsreq = (HttpWebRequest) WebRequest.Create(WSurl);

byte[] reqbytes = UTF8Encoding.UTF8.GetBytes(xmldoc.Innerxml);

wsreq.contentLength = reqbytes.length;

wsreq.ContentType = “text/xml”;

wsreq.Method =”POST”;

Stream str = wsreq.GetRequestStream();

str.write(reqbytes,0,reqbytes.Length);

str.Close();

WebResponse resp = wsreq.GetResponse();

stream respstream = resp.GetResponseStream();

Streamreader sr = new Streamreader(respstream );

string responsexml = sr.ReadToEnd();

Hope this Helps,

Happy Coding