Index and length must refer to a location within the string.
Parameter name: length
if (CurrencyData.Count() != 0)
{
foreach (var curr in CurrencyData)
{
decimal DollarVal = 1 / Convert.ToDecimal(curr.NAV012DollarValue);
txtDollarValue.Text = Convert.ToString(DollarVal).Substring(0,5);
}
please suggest me friends