System.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 System.String.System.IConvertible.ToInt32(IFormatProvider provider) at System.Convert.ToInt32(Object value) at _Default.Page_Load(Object sender, EventArgs e) in d:\vhosts\ladikliahmethudaidernegi.com.tr\httpdocs\Duyuru.aspx.cs:line 25