Request a Cross-domain page with the WebRequest method and post a large amount of data

In a recent project, you need to access another Web page across domains and require incoming data, such as a large amount of data to be passed in, that passes through the post data method, because the Get method can only transfer data within 2KB.
Here's how to share this functionality:

#region request to execute a Remote Web page and send data
<summary>
Request to execute a Remote Web page and send data
</summary>
<param name= "Pageurl" ></param>
<param name= "MSG" ></param>
<param name= "Reqtype" >1 for get,2 post</param>
<returns></returns>
public static string Requesturl (string pageurl, string msg, int reqtype)
{
String strquery = "Senddata=" + crypt.encrypt (msg); Encrypt the transmitted data
String returnvalue = "";
if (Reqtype = 2)
{
WebRequest wrequest = WebRequest.Create (Pageurl);
Wrequest.timeout = 8000;
Wrequest.method = "POST";
Wrequest.contenttype = "application/x-www-form-urlencoded";
string datasend = strquery;
Wrequest.contentlength = Datasend.length;

byte[] Buff = Encoding.UTF8.GetBytes (datasend);
Stream Reqstream = Wrequest.getrequeststream ();
Reqstream.write (buff, 0, buff. Length);
Reqstream.close ();

WebResponse wresponse = Wrequest.getresponse ();
Stream Repstream = Wresponse.getresponsestream ();
StreamReader sr = new StreamReader (Repstream, encoding.getencoding ("GB2312"));
returnvalue = Sr. ReadToEnd (). ToString ();
Sr. Close ();
}
else if (Reqtype = 1)
{
WebRequest wrequest = webrequest.create (Pageurl + "?" + strquery);
Wrequest.timeout = 8000;
WebResponse wresponse = Wrequest.getresponse ();
Stream Resstream = Wresponse.getresponsestream ();
StreamReader sr = new StreamReader (Resstream, System.Text.Encoding.GetEncoding ("GB2312"));
returnvalue = Sr. ReadToEnd (). ToString ();
Resstream.close ();
Sr. Close ();
}
Return returnvalue;
}
#endregion

This approach is convenient for performing remote Web pages and Cross-domain access to Web pages.
Note To reference the using System.Net namespace.