private void btnEquals(object sender, RoutedEventArgs e)
{
if (!Double.IsNaN(CalculatorUtil.V1) && !CalculatorUtil.Op.Equals('\0') && !txtResult.Equals(""))
{
CalculatorUtil.Valued = true;
CalculatorUtil.V2 = Double.Parse(txtResult.Text);
CalculatorUtil.V1 = CalculatorUtil.Operation(CalculatorUtil.V1, CalculatorUtil.V2, CalculatorUtil.Op);
txtResult.Text = CalculatorUtil.V1.ToString();
}
}
private void btnOp(object sender, RoutedEventArgs e)
{
//if (txtResult.Text.Equals("")) { return; }
if (Double.IsNaN(CalculatorUtil.V1) && Double.IsNaN(CalculatorUtil.V2) && !CalculatorUtil.Valued)
{
CalculatorUtil.V1 = Double.Parse(txtResult.Text.ToString());
txtResult.Text = "";
}
else if (!Double.IsNaN(CalculatorUtil.V1) && !CalculatorUtil.Valued)
{
CalculatorUtil.V2 = Double.Parse(txtResult.Text.ToString());
CalculatorUtil.Valued = true;
CalculatorUtil.V1 = CalculatorUtil.Operation(CalculatorUtil.V1, CalculatorUtil.V2, CalculatorUtil.Op);
txtResult.Text = CalculatorUtil.V1.ToString();
}
Button op = (Button)sender;
CalculatorUtil.Op = Char.Parse(op.Content.ToString());
}