Перемещение объекта по форме

 
private void Form1_KeyPress(object sender, KeyPressEventArgs e)
{
if Key = #38 then radioButton1.Top=radioButton1.Top - 10;
if Key = #39 then radioButton1.left =radioButton1.left + 10;
if Key = #40 then radioButton1.Top=radioButton1.Top + 10;
if Key = #41 then radioButton1.left=radioButton1.left - 10;
}

private void Form1_KeyPress(object sender, KeyPressEventArgs e)
{
string a=e.ToString();
if (a == "Down")radioButton1.Top=radioButton1.Top - 10;
if (a=="Left") radioButton1.left =radioButton1.left + 10;
if (a=="Up") radioButton1.Top=radioButton1.Top + 10;
if (a=="Right") radioButton1.left=radioButton1.left - 10;
}

switch (e.KeyCode.ToString())
{
                case "Down":
                    label1.Top += 20;
                    label2.Text = "Down Button was Pressed";
                    break;
                case "Up":
                    label1.Top -= 20;
                    label2.Text = "Up Button was Pressed";
                    break;
                case "Left":
                    label2.Text = "Left Button was Pressed";
                    label1.Left -= 10;
                    break;
                case "Right":
                    label2.Text = "Right Button was Pressed";
                    label1.Left += 10;
                    break;
            }