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? =================================== This list is hosted by DevelopMentorR http://www.develop.com View archives and manage your subscription(s) at http://discuss.develop.com =================================== This list is hosted by DevelopMentorR http://www.develop.com View archives and manage your subscription(s) at http://discuss.develop.com =================================== This list is hosted by DevelopMentorR 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
