Server Error in '/' Application.

Sequence contains no elements

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.InvalidOperationException: Sequence contains no elements

Source Error:


Line 134:                DataList2.DataBind();
Line 135:
Line 136:                tblThuongHieu thuonghieu1 = db.tblThuongHieus.Single(m => m.Language == Profile.Culture && m.ThuongHieuID == GetID_News(key));
Line 137:                timkiem.InnerText = "Sản phẩm: " + thuonghieu1.Name;
Line 138:                return;

Source File: d:\vhosts\viscom.vn\httpdocs\products\Thuonghieu.aspx.cs    Line: 136

Stack Trace:


[InvalidOperationException: Sequence contains no elements]
   System.Data.Linq.SqlClient.SqlProvider.Execute(Expression query, QueryInfo queryInfo, IObjectReaderFactory factory, Object[] parentArgs, Object[] userArgs, ICompiledSubQuery[] subQueries, Object lastResult) +1217
   System.Data.Linq.SqlClient.SqlProvider.ExecuteAll(Expression query, QueryInfo[] queryInfos, IObjectReaderFactory factory, Object[] userArguments, ICompiledSubQuery[] subQueries) +120
   System.Data.Linq.SqlClient.SqlProvider.System.Data.Linq.Provider.IProvider.Execute(Expression query) +360
   System.Data.Linq.Table`1.System.Linq.IQueryProvider.Execute(Expression expression) +58
   System.Linq.Queryable.Single(IQueryable`1 source, Expression`1 predicate) +260
   Thuonghieu.Page_Load(Object sender, EventArgs e) in d:\vhosts\viscom.vn\httpdocs\products\Thuonghieu.aspx.cs:136
   System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +52
   System.Web.UI.Control.OnLoad(EventArgs e) +97
   System.Web.UI.Control.LoadRecursive() +61
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +693


Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.8.9224.0