private void button1_Click(object sender, EventArgs e)
{
String target = this.TargetUnitBox.Text;
int inputNum = Int32.Parse(this.InputUnit.Text);
Double output = mileHandler.Handle(target, inputNum);
this.OutputBox.Text = output.ToString();
}
public double Handle(String target, int inputNum)
{
if (handleType.Equals(target))
{
// return here means we stop the chain push value up the chain
return(Convert(inputNum));
}
if (next != null)
{
//didn't hit so go down the chain and see if another handler hits
return(next.Handle(target, inputNum));
}
else
{
// none hit so 0.0 or error
return(0.0);
}
}