radiobutton code

private void rdo_CheckedChanged(object sender, System.EventArgs e)
{
RadioButton rdo = sender as RadioButton;
if (rdo.Checked)
{
switch (rdo.Text)
{
case "Bottom":
this.Edge = AppBarEdges.Bottom;
break;
case "Top":
this.Edge = AppBarEdges.Top;
break;
case "Left":
this.Edge = AppBarEdges.Left;
break;
case "Right":
this.Edge = AppBarEdges.Right;
break;
case "Float":
this.Edge = AppBarEdges.Float;
break;
}
}
}