C#

Button b = new Button();
// ...		
b.Location = new Point(10, 10);

if (checkBox1.Checked != true)
{
 ...
}
else if (checkBox1.SelectedItem != null)
{
  switch (comboBox1.SelectedItem.ToString())
  {
    ....
  }
}
else
{
 MessageBox.Show("Please select a website to search.");
}

this.Height -= 150; // reduce height by 150 pixels
this.Width += 200; // increase width by 200 pixels
this.Height = 300; // set height to exactly 300 pixels

Form1 form = new Form1();
form1.Height = 200;

Form1 form = new Form1(); // create our form
// ... display it, do other things with it
form.Height = 200;