[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) +1168
System.Data.Linq.SqlClient.SqlProvider.ExecuteAll(Expression query, QueryInfo[] queryInfos, IObjectReaderFactory factory, Object[] userArguments, ICompiledSubQuery[] subQueries) +118
System.Data.Linq.SqlClient.SqlProvider.System.Data.Linq.Provider.IProvider.Execute(Expression query) +342
System.Data.Linq.DataQuery`1.System.Linq.IQueryProvider.Execute(Expression expression) +29
System.Linq.Queryable.Single(IQueryable`1 source) +152
Category.getCategoryID(Product_MainDataContext db, Int32 CategoryLookupID) in \\fs6-n01\stor0wc2dfw1\443490\741331\www.drum-line.com\web\content\Category.aspx.vb:124
Category.Page_Load(Object sender, EventArgs e) in \\fs6-n01\stor0wc2dfw1\443490\741331\www.drum-line.com\web\content\Category.aspx.vb:65
System.Web.UI.Control.OnLoad(EventArgs e) +95
System.Web.UI.Control.LoadRecursive() +59
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +678
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