private void Button4_Click(object sender, EventArgs e)
{
if (txtOpgave.Text != "")
{
Getal2 = Double.Parse(txtCalc.Text);
Berekening berekening = new Berekening(Teken, Getal1, Double.Parse(txtCalc.Text));
berekening.Bereken();
txtCalc.Text = berekening.Uitkomst;
txtOpgave.Text = "";
}
else
{
Berekening berek = new Berekening(Teken, Double.Parse(txtCalc.Text), Getal2);
berek.Bereken();
txtCalc.Text = berek.Uitkomst;
txtOpgave.Text = "";
}
}
private void ButtonNum_Click(object sender, EventArgs e)
{
if (Char.IsDigit(((Button)sender).Text[0]) || ((Button)sender).Text == ".")
{
if (controle)
{
if (txtCalc.Text == "-")
{
controle = false;
}
else
{
txtCalc.Text = "";
controle = false;
}
}
txtCalc.Text += ((Button)sender).Text;
}
else
{
if (txtOpgave.Text != "")
{
txtOpgave.Text += txtCalc.Text;
Berekening berekening = new Berekening(Teken, Getal1, Double.Parse(txtCalc.Text));
berekening.Bereken();
txtOpgave.Text += ((Button)sender).Text;
txtCalc.Text = berekening.Uitkomst;
Teken = ((Button)sender).Text;
Getal1 = Convert.ToDouble(berekening.Uitkomst);
}
else
{
Getal1 = Convert.ToDouble(txtCalc.Text);
Teken = ((Button)sender).Text;
txtOpgave.Text += txtCalc.Text + ((Button)sender).Text;
}
controle = true;
}
}
private void Button_Click(object sender, EventArgs eventArgs)
{
switch (((Button)sender).Text)
{
case "CE":
txtCalc.Text = "";
break;
case "C":
txtOpgave.Text = "";
txtCalc.Text = "";
break;
case "+/-":
if (controle)
{
txtCalc.Text = "-";
}
else
{
txtCalc.Text = (Convert.ToInt32(txtCalc.Text) * -1).ToString();
}
break;
case "«":
txtCalc.Text = txtCalc.Text.Substring(0, txtCalc.Text.Length - 1);
break;
case "%":
txtCalc.Text = (Getal1 * (Convert.ToDouble(txtCalc.Text) / 100)).ToString();
break;
case "=":
break;
case "√":
if (txtCalc.Text != "" && !controle)
{
txtCalc.Text = Math.Sqrt(Convert.ToDouble(txtCalc.Text)).ToString();
}
break;
case "X²":
if (txtCalc.Text != "" && !controle)
{
txtCalc.Text = Math.Pow(Convert.ToDouble(txtCalc.Text), 2).ToString();
}
break;
case "¹/x":
if (txtCalc.Text != "")
{
Berekening berek = new Berekening("÷", 1, Double.Parse(txtCalc.Text));
berek.Bereken();
txtCalc.Text = berek.Uitkomst;
}
break;
default:
break;
}
}