A method of sending an XML remote request and receiving the results of an XML request and placing the dataset

xml| Request

<summary>
Return query Results
</summary>
<param name= "requeststring" > Requested string </param>
<param name= "WRITETEXT" > whether to print out tables </param>
<returns></returns>
public static System.Data.DataSet getdatasetbyrequest (String Requeststring,bool writetext)
{
String requeststr= "http://192.168.1.1/post.aspx";

String str= "request=" +requeststring; Request is the requested parameter, RequestString is the requested string

byte[] bytes = encoding.getencoding ("GB2312").  GetBytes (str); You can set the encoding
WebRequest WebRequest = WebRequest.Create (REQUESTSTR);
WebRequest. method = "POST";//type of request
WebRequest.   Timeout = 300000; Number of milliseconds to timeout
WebRequest. Contenttype= "application/x-www-form-urlencoded";
System.Data.DataSet DS = new DataSet ();
WebRequest. Contentlength=bytes. Length;
Stream ostreamout = null;
Try
{
Ostreamout = WebRequest. GetRequestStream ();
}
Catch
{
WebRequest. Abort ();
Ds. Dispose ();
System.Web.HttpContext.Current.Response.Write ("Request timed out, current string is:<br>" + System.Web.HttpContext.Current.Server.HtmlEncode (requeststring));
System.Web.HttpContext.Current.Response.End ();
}
Finally
{

}

Ostreamout.write (bytes,0,bytes. Length);
Ostreamout.close ();

WebResponse mywebresponse = null;

   try
   {
    mywebresponse = WebRequest. GetResponse ();
  }
   catch
   {
    WebRequest. Abort ();
    DS. Dispose ();
    System.Web.HttpContext.Current.Response.Write ("Gets the returned record error, the current string is:<br>" + System.Web.HttpContext.Current.Server.HtmlEncode (requeststring));
    System.Web.HttpContext.Current.Response.End ();
  }

Stream Streamresponse=mywebresponse.getresponsestream ();
Encoding encode = encoding.getencoding ("GB2312");
StreamReader streamread = new StreamReader (streamresponse, encode);
System.Xml.XmlTextReader Reader = new System.Xml.XmlTextReader (streamread);
Ds. READXML (Reader);
Reader.close ();
Streamresponse.close ();
Streamread.close ();
Mywebresponse.close ();
Console.read ();

Print the returned datable
if (WRITETEXT)
{
System.Text.StringBuilder strt = new StringBuilder ();
for (int i=0;i<ds. tables.count;i++)
{
Strt.append ("<br>table" + i.tostring () + "" + DS. Tables[i]. TableName + ": for (int x=0;x<ds. Tables[i]. rows.count;x++)
{
Strt.append ("<tr>");
for (int y=0;y<ds. Tables[i]. columns.count;y++)
{
Strt.append ("<td>");
Strt.append (DS. Tables[i]. Columns[y]. Columnname.tostring () + ":<br>");
Strt.append (DS. Tables[i]. Rows[x][y]. ToString ());
Strt.append ("</td>");
}
Strt.append ("</tr>");

}
Strt.append ("</table>");
}
System.Web.HttpContext.Current.Response.Write (Strt.tostring ());
}
return DS;

}