private void btnCalculate_Click(object sender, EventArgs e)
{
try
{
var input = txtMessage.Text;
var equation = EquationHelper.RemoveWhitespace(input);
if (EquationValidator.IsEquationValid(equation))
{
var result = EquationTreeGenerator.Calculation(equation).getValue();
txtMessage.Text = result.ToString();
lblMessage.Text = "Enter another equation";
}
else
{
lblMessage.Text = "Invalid Equation! Please try again";
}
}
catch (InvalidEquationException ex)
{
lblMessage.Text = ex.Message;
}
}
public EquationNode(string leftSide, string rightSide, IOperator Operator)
{
Left = EquationTreeGenerator.Calculation(leftSide);
Right = EquationTreeGenerator.Calculation(rightSide);
this.Operator = Operator;
}