No there isn't. My comment about what could be happening is based on reviewing the InsertRow method with Reflector and it isn't doing much.
Thanks, Shawn Wildermuth Wildermuth Consulting Services, LLC http://adoguy.com C# MVP, MCSD.NET, Author and Speaker -----Original Message----- From: Discussion of advanced .NET topics. [mailto:[EMAIL PROTECTED] On Behalf Of J. Merrill Sent: Wednesday, June 21, 2006 12:34 PM To: [email protected] Subject: Re: [ADVANCED-DOTNET] Bug with adding datarow to table Don't DataRow instances have references to other objects? For example, the RowError property is a string; the Table property references the owning the DataTable. There are likely private fields and/or properties that are also references. Isn't there a way to debug into the InsertRow method and see exactly what's going on? At 03:28 PM 6/20/2006, Shawn Wildermuth wrote >None of the culprits I was expecting to see are in the stack trace : ( > >I would open an incident with MS on this as looks like a bug to me. If >it were a data problem it should return a different sort of error (e.g. >"Unable to enable constraints"). > >Wish I had better news... The only thing that could be throwing that >is if a this pointer were null which is very very nasty. > >Thanks, > >Shawn Wildermuth >http://adoguy.com >C# MVP, MCSD.NET, Author and Speaker > >-----Original Message----- >From: Discussion of advanced .NET topics. >[mailto:[EMAIL PROTECTED] On Behalf Of Franklin Gray >Sent: Tuesday, June 20, 2006 3:17 PM >To: [email protected] >Subject: Re: [ADVANCED-DOTNET] Bug with adding datarow to table > >Sorry it took so long. It is hard to get my tester (my boss) to give >me stuff. I'm sure you know what I mean :) > >Once again...the datatable is a valid object and so in the datarow. >This is the actual code. Datatable declared without events but it does >have views of it that are bound to grids (two views, each to a grid.). > > > Public Function CreateNewDetailRec(ByVal CSId As Double, ByVal >IS_ISO As >Boolean) As DataRow > Dim NR As DataRow > NR = Me.DataDetail.NewRow > NR("CONTROL_SEQ_ID") = CSId > NR("ISOL_OR_NORM") = Math.Abs(CType(Not IS_ISO, Int16)) > NR("CONTROL_SEQ_STEP") = Me.DataDetail.Rows.Count + 1 > > Me.DataDetail.Rows.Add(NR) 'this line errors > > Return NR > End Function > > >System.NullReferenceException: Object reference not set to an instance >of an object. > at System.Data.DataTable.InsertRow(DataRow row, Int32 proposedID, >Int32 >pos) > at System.Data.DataTable.AddRow(DataRow row, Int32 proposedID) > at System.Data.DataRowCollection.Add(DataRow row) > at MiddleTier.ControlSeq.CreateNewDetailRec(Double CSId, Boolean >IS_ISO) in C:\Data\Evergreen\Code\MiddleTier\ControlSeq.vb:line 275 > at RELIEVE.CSEditorUserControl.AddNewIsolStep() in >C:\Data\Evergreen\Code\RELIEVE\CSEditorUserControl.vb:line 4303 > > > > > > >Message from Shawn Wildermuth ><[EMAIL PROTECTED]>@DISCUSS.DEVELOP.COM received on >06/19/2006 >05:34 PM > >06/19/2006 05:34 PM > > > >Shawn Wildermuth <[EMAIL PROTECTED]>@DISCUSS.DEVELOP.COM > >Please respond to "Discussion of advanced .NET topics." ><[email protected]> >Sent by "Discussion of advanced .NET topics." ><[email protected]> > > > > To: [email protected] > cc: > Subject: Re: [ADVANCED-DOTNET] Bug with adding datarow to >table > >Can you post a stacktrace (including the framework's stack)? That >might give us a clue. It might be that you need to stop some >databinding activity during the add or something...or you have an errant DataView somewhere... > > > >Thanks, > >Shawn Wildermuth >http://adoguy.com >C# MVP, MCSD.NET, Author and Speaker > > > > >-----Original Message----- >From: Discussion of advanced .NET topics. >[mailto:[EMAIL PROTECTED] On Behalf Of Franklin Gray >Sent: Monday, June 19, 2006 2:53 PM >To: [email protected] >Subject: [ADVANCED-DOTNET] Bug with adding datarow to table > >This is a very strange bug. The line (Table.rows.add(NR)) to add a >datarow to a datatable throws an objective reference error, BUT...all >object's values can be viewed in the quickview window. To add to this, >this error only happens on 2 of 4 developement machines when we execute >the exact same steps. All machines seem to have the same framework, >same code, same 3rd party assemblies. > >Any ideas? J. Merrill / Analytical Software Corp =================================== This list is hosted by DevelopMentor. http://www.develop.com View archives and manage your subscription(s) at http://discuss.develop.com =================================== This list is hosted by DevelopMentor® http://www.develop.com View archives and manage your subscription(s) at http://discuss.develop.com
