NumericUpDown: accept both comma and dot as decimal separator

c# decimal numericupdown
T30 picture T30 · Jun 19, 2014 · Viewed 8.8k times · Source

There's a way to force c# NumericUpDown to accept both comma and dot, to separate decimal values?

I've customized a textbox to do it (practically replacing dots with commas), but I'm surprised that there isn't another way..

This question explains how to change the separator, but I would like to use both!

Answer

Nicolas R picture Nicolas R · Jun 19, 2014

NumericUpDown control uses the culture of the operating system to use comma or dots as a decimal separator.

If you want to be able to handle both separators and consider them as a decimal separator (ie: not a thousand separator), you can use Validation or manual event treatment, for example:

private void numericUpDown1_KeyPress(object sender, KeyPressEventArgs e)
    {
        if (e.KeyChar.Equals('.') || e.KeyChar.Equals(','))
        {
            e.KeyChar = ((System.Globalization.CultureInfo)System.Globalization.CultureInfo.CurrentCulture).NumberFormat.NumberDecimalSeparator.ToCharArray()[0];
        }
    }

In this example you will replace every dot and comma by the NumericDecimalSeparator of the current culture

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