C#

Control control = textBox1;
do
{
    control = GetNextControl(control, true);
} while (!control.Enabled);
control.Focus();

Control ctrl = GetNextControl(...);
if (ctrl.Enabled)
{
    // ...do something...
    ctrl.Focus();
}

textBox1.SelectNextControl(textBox1, true, true, true, true)

public interface IMyInterface
{
  void DoSomething(int count);
}

public abstract class MyBaseClass : IMyInterface
{
  public MyBaseClass()
  {
    DoSomething(0);
  }
  public virtual void DoSomething(int count)
  {
    Console.WriteLine("Called : {0}", count);
  }
}

public interface Fake<t> where T : new() {
</t>

SaveObject(this);

MyClass clss =Retriveobject();

using System;
using System.IO;
using System.Runtime.Serialization;
using System.Runtime.Serialization.Formatters.Binary;
using System.Windows.Forms;

namespace FormSerializationDemo
{
    [Serializable]
    public partial class Form1 : Form, ISerializable
    {
        public Form1()
        {
            InitializeComponent();
            using (MemoryStream stream = new MemoryStream())
            {
                SerializeMe(stream);
                // Do what you like with the stream here...
            }
        }

        private void SerializeMe(Stream stream)
        {
            BinaryFormatter formatter = new BinaryFormatter();
            formatter.Serialize(stream, this);
        }

        public void GetObjectData(SerializationInfo info, StreamingContext context)
        {
            info.AddValue("FormBorderStyle", FormBorderStyle);
            info.AddValue("Location", Location);
            info.AddValue("Name", Name);
            info.AddValue("Size", Size);
            info.AddValue("Text", Text);
        }
    }
}