Server Error in '/' Application.

Input string was not in a correct format.

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.FormatException: Input string was not in a correct format.

Source Error:


Line 167:    public SanPham LayTheoID(string id)
Line 168:    {
Line 169:        return LayTheoID(Convert.ToInt32(id));
Line 170:    }
Line 171:    public List<SanPham> LayTatCa()

Source File: d:\Inetpub\vhosts\petrohotel.vn\httpdocs\App_Code\Class\SanPham.cs    Line: 169

Stack Trace:


[FormatException: Input string was not in a correct format.]
   System.Number.StringToNumber(String str, NumberStyles options, NumberBuffer& number, NumberFormatInfo info, Boolean parseDecimal) +10185747
   System.Number.ParseInt32(String s, NumberStyles style, NumberFormatInfo info) +207
   System.Convert.ToInt32(String value) +46
   SanPham.LayTheoID(String id) in d:\Inetpub\vhosts\petrohotel.vn\httpdocs\App_Code\Class\SanPham.cs:169
   Vn_DetailRoom.Page_Load(Object sender, EventArgs e) in d:\Inetpub\vhosts\petrohotel.vn\httpdocs\Vn\DetailRoom.aspx.cs:16
   System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e) +25
   System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +42
   System.Web.UI.Control.OnLoad(EventArgs e) +132
   System.Web.UI.Control.LoadRecursive() +66
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +2428


Version Information: Microsoft .NET Framework Version:2.0.50727.8964; ASP.NET Version:2.0.50727.8962