Function for checking if .net Framework installed

        private static bool IsNetFrameWork45()
        {
            //            Following are the different version for .Net 4.0 
            //4.0.30319.1 = .NET 4.0 RTM
            // 4.0.30319.269 = most common .NET 4.0 version we're seeing in the data collected from our users
            // 4.0.30319.544 = another .NET 4.0 version that a small portion of our users have installed
            // 4.0.30319.17626 = .NET 4.5 RC
            // 4.0.30319.17929 = .NET 4.5 RTM
            // 4.0.30319.18010 = current version on my Windows 8 machine
            Assembly assembly = typeof(System.String).Assembly;
            System.Diagnostics.FileVersionInfo fvi = System.Diagnostics.FileVersionInfo.GetVersionInfo(assembly.Location);
            if (fvi.FileMajorPart != 4) return false;
            if (fvi.ProductPrivatePart < 17626) return false;
            return true;
        }

Mobile Web Applications with ASP.NET WebForms

http://roopeshreddy.wordpress.com/2012/12/29/mobile-web-applications-with-asp-net-webforms/

How to use UserControl in ASP.NET MVC?

1. Create UserControl as same as in the webforms. But change base class from System.Web.UI.UserControl to System.Web.Mvc.ViewUserControl

    public partial class TestUserControl : System.Web.Mvc.ViewUserControl
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            this.Label1.Text = "Loaded";
        }
    }

2. Put this UserControl all related files into Views/Shared folder
3. Then able to load by Partial view

@Html.Partial("TestUserControl");

Asynchronously streaming video with ASP.NET Web API

http://www.strathweb.com/2013/01/asynchronously-streaming-video-with-asp-net-web-api/

How to save MailMessage into eml file by Reflection on .net framework 4.5?

/// 

        /// HACK - SmtpClient does not give access to filenames when outputting e-mails to disk.  The following extension method
        /// uses reflection to call the internal MailWriter type so that mails can be created with a specified filename.
        /// 
        /// Code taken from: http://www.codeproject.com/KB/IP/smtpclientext.aspx
        /// 
        /// Mail message to be serialized./// Filename of mail message.public static void Save(this MailMessage Message, string FileName)
        {
            // TODO: See if the Mono framework has serialization code we can use.

            Assembly assembly = typeof(SmtpClient).Assembly;
            Type _mailWriterType =
              assembly.GetType("System.Net.Mail.MailWriter");

            using (FileStream _fileStream =
                   new FileStream(FileName, FileMode.Create))
            {
                // Get reflection info for MailWriter contructor
                ConstructorInfo _mailWriterContructor =
                    _mailWriterType.GetConstructor(
                        BindingFlags.Instance | BindingFlags.NonPublic,
                        null,
                        new Type[] { typeof(Stream) },
                        null);

                // Construct MailWriter object with our FileStream
                object _mailWriter =
                  _mailWriterContructor.Invoke(new object[] { _fileStream });

                // Get reflection info for Send() method on MailMessage
                MethodInfo _sendMethod =
                    typeof(MailMessage).GetMethod(
                        "Send",
                        BindingFlags.Instance | BindingFlags.NonPublic);

                // Call method passing in MailWriter
                _sendMethod.Invoke(
                    Message,
                    BindingFlags.Instance | BindingFlags.NonPublic,
                    null,
                    new object[] { _mailWriter, true, true },
                    null);

                // Finally get reflection info for Close() method on our MailWriter
                MethodInfo _closeMethod =
                    _mailWriter.GetType().GetMethod(
                        "Close",
                        BindingFlags.Instance | BindingFlags.NonPublic);

                // Call close method
                _closeMethod.Invoke(
                    _mailWriter,
                    BindingFlags.Instance | BindingFlags.NonPublic,
                    null,
                    new object[] { },
                    null);
            }
        }