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 converted to type ‘Currency’.

Below is my code:

<asp:RangeValidator Runat='server' ControlToValidate='textEdit' 
    MinimumValue='0.0001'
    MaximumValue='999.9999' Type='Currency' 
    ErrorMessage='Should be between 0.0001 and 999.9999' id="idValidtor" 
 display='None' />

Please explain me is currency value can’t contain more than 2 digits after decimal?
Unless how can I resolve this issue?

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)