MySQL Bugs: #67405: exception while editing column name

Bug #67405	exception while editing column name
Submitted:	28 Oct 2012 22:48	Modified:	10 Dec 2012 20:08
Reporter:	Bogdan Fürst	Email Updates:
Status:	Can't repeat	Impact on me:	None
Category:	MySQL Workbench: Modeling	Severity:	S3 (Non-critical)
Version:	5.2.44	OS:	Windows (Microsoft Windows 7 Ultimate Edition (build 7600), 64-bit)
Assigned to:		CPU Architecture:	Any
Tags:	WBBugReporter

Description:
exception while editing second column name of newly added table (default type INT)

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

MySQL Workbench CE for Windows version 5.2.44  revision 9933
Configuration Directory: C:\Users\AI\AppData\Roaming\MySQL\Workbench
Data Directory: C:\Program Files (x86)\MySQL\MySQL Workbench 5.2 CE
Cairo Version: 1.8.8
OS: Microsoft Windows 7 Ultimate Edition (build 7600), 64-bit
CPU: 8x Intel(R) Core(TM) i7 CPU         920  @ 2.67GHz, 6.0 GiB RAM
Active video adapter (0): ATI Radeon HD 5800 Series
Installed video RAM: 1024 MB
Current video mode: 1920 x 1200 x 4294967296 colors
Used bit depth: 32
Driver version: 9.2.0.0
Installed display drivers: aticfx64.dll,aticfx64.dll,aticfx64.dll,aticfx32,aticfx32,aticfx32,atiumd64.dll,atidxx64.dll,atidxx64.dll,atiumdag,atidxx32,atidxx32,atiumdva,atiumd6a.cap,atitmm64.dll
Current user language: Slovenian (Slovenia)

Exception = System.NullReferenceException
Message = Object reference not set to an instance of an object.
FullText = System.NullReferenceException: Object reference not set to an instance of an object.
   at MySQL.Utilities.AdvNodeTextBox.textBox_TextChanged(Object sender, EventArgs e)
   at System.Windows.Forms.Control.OnTextChanged(EventArgs e)
   at System.Windows.Forms.TextBoxBase.OnTextChanged(EventArgs e)
   at System.Windows.Forms.TextBoxBase.WmReflectCommand(Message& m)
   at System.Windows.Forms.TextBoxBase.WndProc(Message& m)
   at System.Windows.Forms.TextBox.WndProc(Message& m)
   at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
   at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
   at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)

How to repeat:
add new table;
add column Id of type tyinint, check UN, AI;
start editing name for next column, type "Code";
press <Home>;
press <Delete> -> exception

exception is handled and does not cause a crash; work may continue without loss.

Hello Bogdan,
I can't reproduce your bug, are you able to get the exception again?

No. But since visualy everything looked ok, I'd bet EditorTextBox was null, because Parent seem never to be explicitly set to null...

private void textBox_TextChanged(object sender, EventArgs e)
{
  _label = EditorTextBox.Text;
  Parent.UpdateEditorBounds();
}

internal void HideEditor(Control editor)
{
...
   _editor = null;
...
}

Thank you for your bug report. 
This issue has ben not reproduced again

thanks for interesting in Workbench