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 43:     public TheLoai LayTheoID(string id)
Line 44:     {
Line 45:         return LayTheoID(Convert.ToInt32(id));
Line 46:     }
Line 47: 

Source File: d:\Inetpub\vhosts\petrohotel.vn\httpdocs\App_Code\Class\TheLoai.cs    Line: 45

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
   TheLoai.LayTheoID(String id) in d:\Inetpub\vhosts\petrohotel.vn\httpdocs\App_Code\Class\TheLoai.cs:45
   Vn_Categorys.Page_Load(Object sender, EventArgs e) in d:\Inetpub\vhosts\petrohotel.vn\httpdocs\Vn\CategorysNhaHang.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