public static Decimal?ToDecimalNullable(this String Expr, String DecimalSeparator = ".")
{
Decimal?result = null;
if (Expr.IsNullOrEmpty())
{
return(result);
}
NumberFormatInfo nfi = NumberFormatInfoEx.GetNumberFormatInfo(DecimalSeparator);
Decimal newDecimal;
Char[] AllowedChars = DecimalSeparator.IsNullOrEmpty() ? null : FloatingNumberChars(DecimalSeparator);
Expr = Expr.OnlyNumbers(AllowedChars);
if (Decimal.TryParse(Expr, NumberStyles.Any, nfi, out newDecimal))
{
result = newDecimal;
}
return(result);
}
public static Single?ToSingleNullable(this String Expr, String DecimalSeparator = ".")
{
Single?result = null;
if (Expr.IsNullOrEmpty())
{
return(result);
}
NumberFormatInfo nfi = NumberFormatInfoEx.GetNumberFormatInfo(DecimalSeparator);
Single newSingle;
Char[] AllowedChars = DecimalSeparator.IsNullOrEmpty() ? null : FloatingNumberChars(DecimalSeparator);
Expr = Expr.ToLower().OnlyNumbers(AllowedChars);
if (Single.TryParse(Expr, NumberStyles.Any, nfi, out newSingle))
{
result = newSingle;
}
return(result);
}