/// <summary>
/// Preforms flagged Arithmetic operations on
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void btnEquals_Click(object sender, EventArgs e)
{
if (_plusButtonClicked)
{
_totalAmount = Arithmetic.Addition(_tempValue, double.Parse(txtDisplay.Text));
}
else if (_minusButtonClicked)
{
_totalAmount = Arithmetic.Subtraction(_tempValue, double.Parse(txtDisplay.Text));
}
else if (_divideButtonClicked)
{
_totalAmount = Arithmetic.Divide(_tempValue, double.Parse(txtDisplay.Text));
}
else if (_multiplyButtonClicked)
{
_totalAmount = Arithmetic.Multiply(_tempValue, double.Parse(txtDisplay.Text));
}
txtDisplay.Text = _totalAmount == null ? Resources.cannotDivBy0 : _totalAmount.ToString();
if (_totalAmount == null)
{
txtDisplay.Text = Resources.cannotDivBy0;
}
else
{
txtDisplay.Text = _totalAmount.ToString();
_negativeButtonClicked = _totalAmount < 0 ? true : false;
}
_clear = true;
_tempValue = 0;
}
