Auto Form Posting

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Net;
using System.IO;

namespace WebSurfer
{
    class PageReader
    {
        "Attributes"#region "Attributes"
        private string _Url;
        private string _Content;
        #endregion

        "Properties"#region "Properties"
        public string Url
        {
            get
            {
                return this._Url;
            }
            set
            {
                this._Url = value;
            }
        }
        public string Content
        {
            get
            {
                return this._Content;
            }
            set
            {
                this._Content = value;
            }
        }
        #endregion

        "Read"#region "Read"
        public void Read()
        {
            HttpWebRequest request = (HttpWebRequest)WebRequest.Create(Url);
            using (HttpWebResponse response = (HttpWebResponse)request.GetResponse())
            {
                using (Stream responseStream = response.GetResponseStream())
                {
                    using (StreamReader readStream = new StreamReader(responseStream, Encoding.UTF8))
                    {
                        this.Content = readStream.ReadToEnd();
                    }
                }
            }
        }
        #endregion
    }
}

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Net;
using System.IO;

namespace WebSurfer
{
    class PagePoster
    {
        "Attributes"#region "Attributes"
        private string _Url;
        private string _RequestData;
        private string _ResponseData;
        #endregion

        "Properties"#region "Properties"
        public string Url
        {
            get
            {
                return this._Url;
            }
            set
            {
                this._Url = value;
            }
        }
        public string RequestData
        {
            get
            {
                return this._RequestData;
            }
            set
            {
                this._RequestData = value;
            }
        }
        public string ResponseData
        {
            get
            {
                return this._ResponseData;
            }
            set
            {
                this._ResponseData = value;
            }
        }
        #endregion

        "Post"#region "Post"
        public void Post()
        {
            HttpWebRequest request = (HttpWebRequest)WebRequest.Create(Url);
            request.Method = "POST";
            request.ContentType = "application/x-www-form-urlencoded";
            request.ContentLength = this.RequestData.Length;
            using (Stream writeStream = request.GetRequestStream())
            {
                UTF8Encoding encoding = new UTF8Encoding();
                byte[] bytes = encoding.GetBytes(RequestData);
                writeStream.Write(bytes, 0, bytes.Length);
            }
            using (HttpWebResponse response = (HttpWebResponse)request.GetResponse())
            {
                using (Stream responseStream = response.GetResponseStream())
                {
                    using (StreamReader readStream = new StreamReader(responseStream, Encoding.UTF8))
                    {
                        this.ResponseData = readStream.ReadToEnd();
                    }
                }
            }
        }
        #endregion
    }
}

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using SHDocVw;
using System.Net;
using System.IO;
using System.Web;

namespace WebSurfer
{
    class IEController
    {
        "Attributes"#region "Attributes"
        private string _Url;
        private string _PostData;
        private InternetExplorer _IE;
        private string _ViewState;
        private string _EventValidation;
        private string _EventTarget;
        private string _EventArgument;
        #endregion

        "Properties"#region "Properties"
        public string Url
        {
            get
            {
                return this._Url;
            }
            set
            {
                this._Url = value;
            }
        }
        public string PostData
        {
            get
            {
                return this._PostData;
            }
            set
            {
                this._PostData = value;
            }
        }
        public InternetExplorer IE
        {
            get
            {
                return this._IE;
            }
            set
            {
                this._IE = value;
            }
        }
        public string ViewState
        {
            get
            {
                return this._ViewState;
            }
            set
            {
                this._ViewState = value;
            }
        }
        public string EventValidation
        {
            get
            {
                return this._EventValidation;
            }
            set
            {
                this._EventValidation = value;
            }
        }
        public string EventTarget
        {
            get
            {
                return this._EventTarget;
            }
            set
            {
                this._EventTarget = value;
            }
        }
        public string EventArgument
        {
            get
            {
                return this._EventArgument;
            }
            set
            {
                this._EventArgument = value;
            }
        }
        #endregion

        "Constructor"#region "Constructor"
        public IEController()
        {
            this.IE = new InternetExplorer();
        }
        #endregion

        "Post"#region "Post"
        public void Post()
        {
            object vPost, vHeaders, vFlags, vTargetFrame, vUrl;
            vFlags = null;
            vTargetFrame = null;
            vUrl = this.Url;
            vHeaders = "Content-Type: application/x-www-form-urlencoded" + Convert.ToChar(10) + Convert.ToChar(13);
            vPost = ASCIIEncoding.ASCII.GetBytes(this.PostData);
            this.IE.Visible = true;
            this.IE.Navigate2(ref vUrl, ref vFlags, ref vTargetFrame, ref vPost, ref vHeaders);
        }
        #endregion

        "GetRequiredData"#region "GetRequiredData"
        public void GetRequiredData()
        {
            WebClient wc = new WebClient();
            Stream st = wc.OpenRead(this.Url);
            StreamReader sr = new StreamReader(st);
            string content = sr.ReadToEnd();
            sr.Close();
            st.Close();
            if (content.IndexOf("__VIEWSTATE") != -1)
            {
                this.ViewState = ReadData("__VIEWSTATE", content);
            }
            if (content.IndexOf("__EVENTVALIDATION") != -1)
            {
                this.EventValidation = ReadData("__EVENTVALIDATION", content);
            }
            if (content.IndexOf("__EVENTTARGET") != -1)
            {
                this.EventTarget = ReadData("__EVENTTARGET", content);
            }
            if (content.IndexOf("__EVENTARGUMENT") != -1)
            {
                this.EventArgument = ReadData("__EVENTARGUMENT", content);
            }
        }
        #endregion

        "Redirect"#region "Redirect"
        public void Redirect(string redirect)
        {
            object o = null;
            this.IE.Navigate(redirect, ref o, ref o, ref o, ref o);
        }
        #endregion

        "ReadData"#region "ReadData"
        private string ReadData(string data, string content)
        {
            int startIndex = content.IndexOf("id=\"" + data + "\" value=") + data.Length + 13;
            int endIndex = content.IndexOf("\"", startIndex);
            int count = endIndex - startIndex;
            return content.Substring(startIndex, count);
        }
        #endregion
    }
}