RangeValidator Currency value can't contain more than 2 digits after decimal?

Question

Framework 4.0 Asp.net application

When I run the code I got a error \"The value \'999.9999\' of the MaximumValue property of \'RangeValidator\' cannot be c

Answer 1

The RangeValidator uses the NumberFormatInfo.CurrencyDecimalDigits property to determine if the string can be converted to a currency, otherwise it will throw your exception. From MSDN:

when a RangeValidator control's Type property is set to "Currency", the MinimumValue and MaximumValue properties must be provided in a format such as that described in NumberFormatInfo.CurrencyDecimalDigits, otherwise an exception is thrown.

The default for most cultures (incl. InvariantCulture) is 2 (arabic countries have 3 but none 4).

So what culture are you using? If it is important to store more decimal places than two in a currency, then you could use a custom NumberFormatInfo in this page:

protected void Page_PreInit(object sender, EventArgs e)
{
    var customCulture = (CultureInfo)CultureInfo.CurrentCulture.Clone();
    var nfi = (NumberFormatInfo)customCulture.NumberFormat.Clone();
    nfi.CurrencyDecimalDigits = 4;
    customCulture.NumberFormat = nfi;
    System.Threading.Thread.CurrentThread.CurrentCulture = customCulture;
}

(note that you need to add using System.Globalization; at the top)