Implementation method of sending HTTP request in WinForm

How to Request to Send HTTP in WinForm

Manually sending HTTP requests is mainly to call HttpWebResponse methods of System. Net

Manually send GET requests for HTTP:

string strURL = "http://localhost/Play/CH1/Service1.asmx/doSearch?keyword=";
strURL +=this.textBox1.Text;
System.Net.HttpWebRequest request;
//  Create 1 A HTTP Request 
request = (System.Net.HttpWebRequest)WebRequest.Create(strURL);
//request.Method="get";
System.Net.HttpWebResponse response;
response = (System.Net.HttpWebResponse)request.GetResponse();
System.IO.Stream s;
s = response.GetResponseStream();
XmlTextReader Reader = new XmlTextReader(s);
Reader.MoveToContent();
string strValue = Reader.ReadInnerXml();
strValue = strValue.Replace("&lt;","<");
strValue = strValue.Replace("&gt;",">");
MessageBox.Show(strValue); 
Reader.Close();

Manually send POST requests for HTTP

string strURL = "http://localhost/Play/CH1/Service1.asmx/doSearch";
System.Net.HttpWebRequest request;

request = (System.Net.HttpWebRequest)WebRequest.Create(strURL);
//Post Request mode 
request.Method="POST";
//  Content type 
request.ContentType="application/x-www-form-urlencoded";
//  Parameter passing URL Code 
string paraUrlCoded = System.Web.HttpUtility.UrlEncode("keyword");
paraUrlCoded += "=" + System.Web.HttpUtility.UrlEncode(this.textBox1.Text);
byte[] payload;
// Will URL The encoded string is converted to bytes 
payload = System.Text.Encoding.UTF8.GetBytes(paraUrlCoded);
// Set the requested  ContentLength 
request.ContentLength = payload.Length;
// Get an invitation   Flow seeking 
Stream writer = request.GetRequestStream();
// Write request parameters to the stream 
writer.Write(payload,0,payload.Length);
//  Close the request flow 
writer.Close();
System.Net.HttpWebResponse response;
//  Get the response flow 
response = (System.Net.HttpWebResponse)request.GetResponse();
System.IO.Stream s;
s = response.GetResponseStream();
XmlTextReader Reader = new XmlTextReader(s);
Reader.MoveToContent();
string strValue = Reader.ReadInnerXml();
strValue = strValue.Replace("&lt;","<");
strValue = strValue.Replace("&gt;",">");
MessageBox.Show(strValue); 
Reader.Close();