Si รจ verificato un erroreSystem.FormatException: Input string was not in a correct format.
at System.Number.StringToNumber(String str, NumberStyles options, NumberBuffer& number, NumberFormatInfo info, Boolean parseDecimal)
at System.Number.ParseInt32(String s, NumberStyles style, NumberFormatInfo info)
at item.Page_Load(Object sender, EventArgs e) in c:\Websites\www.panoply.it\item.aspx.cs:line 23