Httpwebresponse asynchronous: request. begingetrequeststream error! The body of the content with this predicate type cannot be sent.

Request. begingetrequeststream error! The body of the content with this predicate type cannot be sent.

Note This method:

///// Request. method = "get"; // this method is called if it is not asynchronous.

Request. method = "Post"; // this method is called if it is asynchronous.

Try
{
Request = webrequest. Create (string. Format (geturi, weburi, betinfor. Row. playid, uid, ptype, gnum) as httpwebrequest;

///// Request. method = "get"; // this method is called if it is not asynchronous.

Request. method = "Post"; // this method is called if it is asynchronous.
Request. keepalive = true;
Request. Timeout = 400;
If (betinfor. playmode = playmode. Go)
Request. Referer = string. Format ("{0} APP/member/bk_browse/body_browse.php? Uid = {1} & Rtype = Re & langx = ZH-CN & mtype = 3 & delay = ", weburi, UID );
Else if (betinfor. playmode = playmode. Single)
Request. Referer = string. Format ("{0} APP/member/bk_browse/body_browse.php? Uid = {1} & Rtype = R & langx = ZH-CN & mtype = 3 & delay = ", weburi, UID );
Request. useragent = "MSIE 6.0 ";

//************************************** * *** Asynchronous call
Request. begingetrequeststream (New asynccallback (requestcallback), request );
Alldone. waitone ();

Response = (httpwebresponse) request. getresponse ();
Stream = response. getresponsestream ();
Thread. Sleep (1 );
Streamreader streamread = new streamreader (stream, big5 );
Result = streamread. readtoend ();
Stream. Close ();
Streamread. Close ();
//************************************** ********************
///// Response = request. getresponse () as httpwebresponse;
///// Stream = response. getresponsestream ();
///// Streamreader sr = NULL;
///// Sr = new streamreader (stream, big5 );
//// While (COUNT = Sr. Read (leftbuffer, 0, leftbuffer. Length)> 0)
//////{
//// String STR = new string (leftbuffer, 0, count );
///// Leftsb. append (STR );
//////}
//// Sr. Close ();

# Region extract data
//// Result = leftsb. tostring ();
If (result. indexof ("medium ")! =-1 | betinfor. playmode = playmode. Single)
{

}
# Endregion
}
Catch (exception e) {Throw new exception ("exception occurred when obtaining the left side" + Result + E. message + "," + E. targetsite + "," + E. innerexception );}
Finally
{
If (response! = NULL) response. Close ();
If (request! = NULL) request. Abort ();

Leftsb. Remove (0, leftsb. Length );
}
If (! String. isnullorempty (gmin_single) & (INT) (betinfor. odds + 0.0001) * 1000) % 10 = 0) // a ticket with a decimal number of 3rd digits will be canceled
{

}
Else betinfor. Odds = 0;
Time2 = environment. tickcount;
Betinfor. gettime = time2-time1;
Return result;