Question

I need inherit events and properties. For example, I need to move a picture around a form.
I have this code to move one picture but I need to create multiple images with the same behavior.

private void pictureBox_MouseDown(object sender, MouseEventArgs e)
{
    if (e.Button == MouseButtons.Left)
    {
         x = e.X;
         y = e.Y;
     }
 }

private void pictureBox_MouseMove(object sender, MouseEventArgs e)  
{
    if (e.Button == MouseButtons.Left)
    {
        pictureBox.Left += (e.X -x);
        pictureBox.Top += (e.Y - y);
    }
 }

Answer 1

Create custom control:

public class MovablePictureBox : PictureBox
{
    private int x;
    private int y;

    protected override void OnMouseDown(MouseEventArgs e)
    {
        base.OnMouseDown(e);

        if (e.Button == MouseButtons.Left)
        {
            x = e.X;
            y = e.Y;
        }
    }

    protected override void OnMouseMove(MouseEventArgs e)
    {
        base.OnMouseMove(e);

        if (e.Button == MouseButtons.Left)
        {
            Left += (e.X - x);
            Top += (e.Y - y);
        }
    }
}

UPDATE:
Instead of attaching a delegates, you should override inherited event functionality, as Microsoft recommends here.
After creating this control just compile program and drag your MovablePictureBoxes from Toolbox to form. They all will be draggable (or movable, if you wish).