[NullReferenceException: 未将对象引用设置到对象的实例。]
System.Data.Linq.SqlClient.QueryConverter.VisitInvocation(InvocationExpression invoke) +446
System.Data.Linq.SqlClient.QueryConverter.VisitInner(Expression node) +1262
System.Data.Linq.SqlClient.QueryConverter.Visit(Expression node) +18
System.Data.Linq.SqlClient.QueryConverter.VisitExpression(Expression exp) +18
System.Data.Linq.SqlClient.QueryConverter.VisitBinary(BinaryExpression b) +35
System.Data.Linq.SqlClient.QueryConverter.VisitInner(Expression node) +427
System.Data.Linq.SqlClient.QueryConverter.Visit(Expression node) +18
System.Data.Linq.SqlClient.QueryConverter.VisitExpression(Expression exp) +18
System.Data.Linq.SqlClient.QueryConverter.VisitWhere(Expression sequence, LambdaExpression predicate) +125
System.Data.Linq.SqlClient.QueryConverter.VisitSequenceOperatorCall(MethodCallExpression mc) +3403
System.Data.Linq.SqlClient.QueryConverter.VisitMethodCall(MethodCallExpression mc) +74
System.Data.Linq.SqlClient.QueryConverter.VisitInner(Expression node) +1003
System.Data.Linq.SqlClient.QueryConverter.ConvertOuter(Expression node) +79
System.Data.Linq.SqlClient.SqlProvider.BuildQuery(Expression query, SqlNodeAnnotations annotations) +114
System.Data.Linq.SqlClient.SqlProvider.System.Data.Linq.Provider.IProvider.Execute(Expression query) +132
System.Data.Linq.DataQuery`1.System.Collections.Generic.IEnumerable<T>.GetEnumerator() +35
JQWebSite.kanban.RoomBrand.LoadBrand(Int32 BrandID) in e:\WebSiteProject\Jiaqi\Source\JQWebSite\kanban\RoomBrand.aspx.cs:243
JQWebSite.kanban.RoomBrand.LoadInfo() in e:\WebSiteProject\Jiaqi\Source\JQWebSite\kanban\RoomBrand.aspx.cs:190
JQWebSite.kanban.RoomBrand.Page_Load(Object sender, EventArgs e) in e:\WebSiteProject\Jiaqi\Source\JQWebSite\kanban\RoomBrand.aspx.cs:153
System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e) +14
System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +35
System.Web.UI.Control.OnLoad(EventArgs e) +99
System.Web.UI.Control.LoadRecursive() +50
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +627
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