Detect decimal separator

Question

I have to detect decimal separator in current windows setting. Im using visual studio 2010, windows form. In particular, if DecimalSeparator is comma, if user input dot in t

Answer 1

Actually you should be using

Thread.CurrentThread.CurrentCulture.NumberFormat.NumberDecimalSeparator

instead of

CultureInfo.CurrentUICulture.NumberFormat.NumberDecimalSeparator

Using the second one gives you the OS default settings, which might be different then user Regional Locales for particular user account logged to this PC

Answer 2

Solution:

private void textBox1_KeyPress(object sender, KeyPressEventArgs e)
{
    char a = Convert.ToChar(Thread.CurrentThread.CurrentCulture.NumberFormat.NumberDecimalSeparator);
    if (e.KeyChar == a)
    {
        e.Handled = true;
        textBox1.Text = "0";
    }
}

That way, when you hit . or , you will have a 0 in your TextBox.

EDIT:

If you want to insert a 0 everytime you hit the decimal separator, this is the code:

char a = Convert.ToChar(CultureInfo.CurrentCulture.NumberFormat.NumberDecimalSeparator);
if (e.KeyChar == a)
{
    e.KeyChar = '0';
}

Answer 3

You shouldn't use a while loop, I think it will freeze the application, use if instead, the problem might be here