public override string Calculate(NumbersContent request)
{
if (request == null || _succesor == null)
return "0";
if (string.Compare("*", request.Operation) == 0)
return (request.Number1 * request.Number2).ToString();
else return _succesor.Calculate(request);
}
public override string Calculate(NumbersContent request)
{
if (request == null || _succesor == null)
{
return("0");
}
if (string.Compare("+", request.Operation) == 0)
{
return((request.Number1 + request.Number2).ToString());
}
else
{
return(_succesor.Calculate(request));
}
}
public abstract string Calculate(NumbersContent request);
private void btnCalculate_Click(object sender, EventArgs e)
{
NumbersContent _numbers = new NumbersContent(txtNumber1.Text, txtNumber2.Text, cbbOperation.Text);
txtResult.Text = _addHandler.Calculate(_numbers);
}
