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 70:         if ((Request.QueryString["id"] != null))
Line 71:         {
Line 72:             sanPham.MaNhomSanPham = int.Parse(Request.QueryString["id"]);
Line 73: 
Line 74:             List<vwSanPham> danhSachSanPham = sp.phanTrangSanPhamConTheoMaNhomSanPham(trangHienTai, kichThuocTrang, sanPham).ToList();

Source File: d:\Inetpub\vhosts\batdongsanphanthiet.vn\httpdocs\vi\du-an.aspx.cs    Line: 72

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
   vi_du_an.xuatDuLieu() in d:\Inetpub\vhosts\batdongsanphanthiet.vn\httpdocs\vi\du-an.aspx.cs:72
   vi_du_an.Page_Load(Object sender, EventArgs e) in d:\Inetpub\vhosts\batdongsanphanthiet.vn\httpdocs\vi\du-an.aspx.cs:40
   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