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{
Double value = 0;
string operation = "";
bool operation_press = false;
protected void Page_Load(object sender, EventArgs e)
{
}
protected void Equal_Click(object sender, EventArgs e)
{
//get the values for calculation
int[] results = System.Text.RegularExpressions.Regex.Split(result.Text, @"-|+|*|/").Select(x => Convert.ToInt32(x)).ToArray();
//get the operation
string operation = System.Text.RegularExpressions.Regex.Split(result.Text, @"[0-9]+")[1];
//do the calculation
switch (operation)
{
case "+":
result.Text = (results[0] + results[1]).ToString();
break;
case "-":
result.Text = (results[0] - results[1]).ToString();
break;
case "*":
result.Text = (results[0] * results[1]).ToString();
break;
case "/":
if (results[1] == 0)
{
result.Text = "division by zero is not accepted";
}
else
{
result.Text = (results[0] / results[1]).ToString();
}
break;
default:
break;
}
}
protected void Button_Click(object sender, EventArgs e)
{
if ((result.Text == "0") || (operation_press))
result.Text = string.Empty;
Button b = (Button)sender;
result.Text = result.Text + b.Text;
}
protected void Button17_Click(object sender, EventArgs e)
{
result.Text = "0";
}
protected void Operator_Click(object sender, EventArgs e)
{
Button b = (Button)sender;
result.Text = result.Text + b.Text;
//value = Convert.ToDouble(Double.Parse(result.Text);
operation = b.Text;
operation_press = true;
}
protected void Button16_Click(object sender, EventArgs e)
{
result.Text = "0";
}
protected void result_TextChanged(object sender, EventArgs e)
{
}
}
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