Remove whitespace from ASPX Page

 Here is the code that remove the whitespace in your rendered ASPX page from server.

Make Class1.cs file in App_Code folder and Put this code it it,
and Register this Module from web.Config file.

This reduce your pageSize to render and Increase Performance.

using System;

using System.Web;

using System.IO;

namespace SampleCSharpApplication

{

    public class Whitespace : Stream

    {

        private Stream OutPut;

        private bool inWhiteSpaceRun = false;

        private bool whiteSpaceRunContainsLineBreak = false;

        public Whitespace(Stream output)

        {

            this.OutPut = output;

        }

        public override void Write(byte[] buffer, int offset, int count)

        {

            int dataLimit = offset + count;

            for (int i = offset; i < dataLimit; i++)

            {

                char c = (char)buffer[i];

                if (Char.IsWhiteSpace(c))

                {

                    inWhiteSpaceRun = true;

                    if ((c == '\r') || (c == '\n'))

                    {

                        whiteSpaceRunContainsLineBreak = true;

                    }

                }

              

                    if (inWhiteSpaceRun)

                    {

                        if (whiteSpaceRunContainsLineBreak)

                        {

                            OutPut.WriteByte((byte)'\r');

                            OutPut.WriteByte((byte)'\n');

                        }

                    }

                    else

                    {

                        OutPut.WriteByte((byte) 0);

                    }

                    OutPut.WriteByte((byte)c);

                    inWhiteSpaceRun = false;

                    whiteSpaceRunContainsLineBreak = false;

                }

            }

       

        public override bool CanRead

        {

            get { return true; }

        }

        public override bool CanSeek

        {

            get { return true; }

        }

       

        public override bool CanWrite

        {

            get { return true; }

        }

        public override void Flush()

        {

            OutPut.Flush();

        }

        public override long Length

        {

            get { return 0; }

        }

        public override long Position

        {

            get

            {

                return 0;          

            }

            set{ }

        }

        public override int Read(byte[] buffer, int offset, int count)

        {

            return OutPut.Read(buffer, offset, count);

        }

        public override long Seek(long offset, SeekOrigin origin)

        {

            return OutPut.Seek(offset, origin);

        }

        public override void SetLength(long value)

        {

            OutPut.SetLength(value);       

        }

    }

    public class Module : IHttpModule

    {

        private void OnPostRequestHandlerExecute(Object sender, EventArgs e)

        {

            HttpApplication httpApplication = (HttpApplication)sender;

            HttpResponse httpResponse = httpApplication.Context.Response;

            if (httpResponse.ContentType == "text/html")

            {

                httpResponse.Filter = new Whitespace(httpResponse.Filter);

            }

        }

        public void Init(HttpApplication httpApplication)

        {

            httpApplication.PostRequestHandlerExecute += new EventHandler(OnPostRequestHandlerExecute);

        }

        public void Dispose()

        { }

    }

}

In Web.Config file.

<httpModules>

    <add name="WhiteSpace" type="SampleCSharpApplication.Module" />
</httpModules>

Ref.  from Mads Kristensen's blog