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 107:            lv_dichvu.DataBind();
Line 108:
Line 109:            Category lang = db.Categories.Single(m => m.Language == Profile.Culture && m.CategoryLangID == GetID_News(category));
Line 110:            tieude.InnerHtml = "Việc làm " + lang.Name;
Line 111:        }

Source File: c:\inetpub\vhosts\hitechwork.vn\httpdocs\job\job.aspx.cs    Line: 109

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) +3121
   System.Data.Linq.SqlClient.SqlProvider.ExecuteAll(Expression query, QueryInfo[] queryInfos, IObjectReaderFactory factory, Object[] userArguments, ICompiledSubQuery[] subQueries) +187
   System.Data.Linq.SqlClient.SqlProvider.System.Data.Linq.Provider.IProvider.Execute(Expression query) +410
   System.Data.Linq.Table`1.System.Linq.IQueryProvider.Execute(Expression expression) +48
   Job.dtp_news_PreRender(Object sender, EventArgs e) in c:\inetpub\vhosts\hitechwork.vn\httpdocs\job\job.aspx.cs:109
   System.Web.UI.Control.OnPreRender(EventArgs e) +11905428
   System.Web.UI.Control.PreRenderRecursiveInternal() +162
   System.Web.UI.Control.PreRenderRecursiveInternal() +256
   System.Web.UI.Control.PreRenderRecursiveInternal() +256
   System.Web.UI.Control.PreRenderRecursiveInternal() +256
   System.Web.UI.Control.PreRenderRecursiveInternal() +256
   System.Web.UI.Control.PreRenderRecursiveInternal() +256
   System.Web.UI.Control.PreRenderRecursiveInternal() +256
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +6875


Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.7.4057.0