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 System.Int32.Parse(String s) at WCCF_Authentication.Authentication.get_associatedetails() in C:\Users\adrian wragg\Documents\Visual Studio 2010\Projects\WCCF_Membership\WCCF_Authentication\Authentication.cs:line 138