Bug #67704 As trying to make new 2'nd column with making new table, I'd got this error. It'
Submitted: 26 Nov 2012 1:25 Modified: 26 Dec 2012 19:43
Reporter: Myoung Oh Lee Email Updates:
Status: No Feedback Impact on me:
None 
Category:MySQL Workbench: Modeling Severity:S2 (Serious)
Version:5.2.44 OS:Microsoft Windows (Microsoft Windows 7 (build 7600), 32-bit)
Assigned to: CPU Architecture:Any
Tags: WBBugReporter

[26 Nov 2012 1:25] Myoung Oh Lee
Description:
As you would see, the message is "MySQL Workbench has encountered a problem: The object reference is not assigned to the instance of the object."

----- Developer Notes -----

MySQL Workbench CE for Windows version 5.2.44  revision 9933
Configuration Directory: C:\Users\이명오\AppData\Roaming\MySQL\Workbench
Data Directory: C:\Program Files\MySQL\MySQL Workbench CE 5.2.44
Cairo Version: 1.8.8
OS: Microsoft Windows 7  (build 7600), 32-bit
CPU: 4x Intel(R) Core(TM) i5-2410M CPU @ 2.30GHz, 2.7 GiB RAM
Active video adapter (0): Intel(R) HD Graphics 3000
Installed video RAM: 1158 MB
Current video mode: 1366 x 768 x 4294967296 colors
Used bit depth: 32
Driver version: 8.15.10.2696
Installed display drivers: igdumd32.dll,igd10umd32.dll,igd10umd32.dll
Current user language: 한국어(대한민국)

Exception = System.NullReferenceException
Message = 개체 참조가 개체의 인스턴스로 설정되지 않았습니다.
FullText = System.NullReferenceException: 개체 참조가 개체의 인스턴스로 설정되지 않았습니다.
   위치: MySQL.Grt.RunWrappedDelegate3<int\,int\,int\,int\,std::basic_string<char\,std::char_traits<char>\,std::allocator<char> >\,System::String ^\,std::basic_string<char\,std::char_traits<char>\,std::allocator<char> >\,System::String ^\,MySQL::Grt::DelegateSlot3<int\,int\,int\,int\,std::basic_string<char\,std::char_traits<char>\,std::allocator<char> >\,System::String ^\,std::basic_string<char\,std::char_traits<char>\,std::allocator<char> >\,System::String ^>::ManagedDelegate>.native_callback(Int32* a1, basic_string<char\,std::char_traits<char>\,std::allocator<char> >* a2, basic_string<char\,std::char_traits<char>\,std::allocator<char> >* a3)
   위치: boost.detail.function.function_invoker0<int (__cdecl*)(void),int>.invoke(function_buffer* function_ptr)
   위치: boost.function0<int>.()(function0<int>* )
   위치: boost.detail.function.void_function_obj_invoker0<boost::function<int __cdecl(void)>,void>.invoke(function_buffer* function_obj_ptr)
   위치: MySQL.Grt.ListModel.refresh()
   위치: MySQL.GUI.Workbench.Plugins.DbMysqlTableEditor.RefreshFormData()
   위치: MySQL.GUI.Workbench.Plugins.ObjectEditorPlugin.CallRefreshFormData()
   위치: MySQL.GUI.Workbench.Plugins.DbMysqlTableEditor.CallRefreshFormData()
   위치: MySQL.Grt.RunWrappedDelegate0<void\,void\,MySQL::Grt::DelegateSlot0<void\,void>::ManagedDelegate>.native_callback()
   위치: boost.detail.function.void_function_invoker0<void (__cdecl*)(void),void>.invoke(function_buffer* function_ptr)
   위치: MySQL.Grt.ListModel.set_field(NodeId node, Int32 column, String value)
   위치: MySQL.Grt.Db.DbMysqlTableColumnsListModel.activateColumnPlaceholder(NodeId node)
   위치: MySQL.Grt.Db.DbMysqlTableColumnsListModel.ValuePushed(Object sender, NodeControlValueEventArgs e)
   위치: Aga.Controls.Tree.NodeControls.BindableControl.OnValuePushed(NodeControlValueEventArgs args)
   위치: Aga.Controls.Tree.NodeControls.BindableControl.SetValue(TreeNodeAdv node, Object value)
   위치: Aga.Controls.Tree.NodeControls.BaseTextControl.SetLabel(TreeNodeAdv node, String value)
   위치: MySQL.Utilities.AdvNodeTextBox.DoApplyChanges(TreeNodeAdv node, Control editor)
   위치: Aga.Controls.Tree.NodeControls.EditableControl.ApplyChanges()
   위치: Aga.Controls.Tree.NodeControls.EditableControl.EditorValidating(Object sender, CancelEventArgs e)
   위치: System.Windows.Forms.Control.OnValidating(CancelEventArgs e)
   위치: System.Windows.Forms.Control.NotifyValidating()
   위치: System.Windows.Forms.Control.PerformControlValidation(Boolean bulkValidation)
   위치: System.Windows.Forms.ContainerControl.ValidateThroughAncestor(Control ancestorControl, Boolean preventFocusChangeOnError)
   위치: System.Windows.Forms.ContainerControl.EnterValidation(Control enterControl)
   위치: System.Windows.Forms.ContainerControl.UpdateFocusedControl()
   위치: System.Windows.Forms.ContainerControl.AssignActiveControlInternal(Control value)
   위치: System.Windows.Forms.ContainerControl.ActivateControlInternal(Control control, Boolean originator)
   위치: System.Windows.Forms.ContainerControl.ActivateControlInternal(Control control)
   위치: System.Windows.Forms.Control.WmSetFocus(Message& m)
   위치: System.Windows.Forms.Control.WndProc(Message& m)
   위치: System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
   위치: System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
   위치: System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)

How to repeat:
As trying to make new 2'nd column with making new table, I'd got this error. It's the second time for me.
[26 Nov 2012 19:43] Sveta Smirnova
Thank you for the report.

Please send us diagram file in which you experienced this issue and inform us to which table you tried to add a column and definition of this column.
[27 Dec 2012 1:00] Bugs System
No feedback was provided for this bug for over a month, so it is
being suspended automatically. If you are able to provide the
information that was originally requested, please do so and change
the status of the bug back to "Open".