MySQL Bugs: #83447: Cannot access a disposed object. Object name: 'ProgressBar'

Bug #83447	Cannot access a disposed object. Object name: 'ProgressBar'
Submitted:	19 Oct 2016 15:49	Modified:	19 Oct 2016 16:29
Reporter:	Colton Griffin	Email Updates:
Status:	Verified	Impact on me:	None
Category:	MySQL Workbench	Severity:	S3 (Non-critical)
Version:	6.3.7, 8.0.20, 8.0.23, 8.0.32, 8.0.36, 8.0.38, 8.0.41	OS:	Windows (Windows 10)
Assigned to:		CPU Architecture:	Any

Description:
Error message came up when I was canceling an import of data in a csv file to a table. 

MySQL Workbench has encountered a problem
Cannot access a disposed object.
Object name: 'ProgressBar'.

How to repeat:
Right click
Import data 
Select csv
click through and start import
Click cancel half way through

Thank you for the bug report.

Exception = System.ObjectDisposedException
Message = Cannot access a disposed object.
Object name: 'ProgressBar'.
FullText = System.ObjectDisposedException: Cannot access a disposed object.
Object name: 'ProgressBar'.
   at System.Windows.Forms.Control.CreateHandle()
   at System.Windows.Forms.Control.get_Handle()
   at MySQL.Forms.ViewWrapper.show(View* backend, Boolean show)
   at boost.function0<bool>.()(function0<bool>* )
   at TimerHandler.timer_tick(Object sender, EventArgs e)
   at System.Windows.Forms.Timer.OnTick(EventArgs e)
   at System.Windows.Forms.Timer.TimerNativeWindow.WndProc(Message& m)
   at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)

http://bugs.mysql.com/bug.php?id=87698  marked as duplicate of this one.

This bug is still present, Windows 10, cancelling a Table Import Wizard job, which was running really, really slowly (10 records per minute). 

2020-05-08.

Bug #99734 marked as duplicate of this one.

Just got the same situation.

I imported a CSV to MySql workbench, very slow process (30MB csv - 1h progress and not even 50%).. so half way i stopped the process and i got an error "Cannot access a disposed object. Object name: '_ProgressBar'.

Next thing, MySql workbench is not responding.

using latest MySql workbench as of 19/10/2020 (v. 8.0.21 build 16448441 CE -64bit)

Thanks.

Bug #102889 marked as duplicate of this one.

Note that you also get this message if your import fails and you cancel.

Bug #105804 marked as duplicate of this one.

Bug #106620 marked as duplicate of this one.

Bug #106860 marked as duplicate of this one.

still experiencing this bug / error message.

Bug #111071 marked as duplicate of this one.

Bug #111231 marked as duplicate of this one

Experiencing same bug... 
Windows 11 Pro for Workstations build 22621.1992
MySQL Workbench version 8.0.33 build 2947366 CE (64 bits)
Here is the Action Output I'm getting
17:33:28	DEALLOCATE PREPARE stmt	Error Code: 1243 Unknown prepared statement handler (stmt) given to DEALLOCATE PREPARE	

Also, window that pops up titled "MySQL Workbench Unexpected Error" states "Cannot access a disposed object." Object name: '_ProgressBar'.

I have to restart workbench before I do another Data Import or it will move at a glacial pace as described in other comments.

I'm also experiencing the same bug as of today (21st July 2023). My MySQL Workbench version is 8.0.33.

Bug#112000 marked as duplicate of this one

Bug #112932 marked as duplicate of this one.

Bug #112966 marked as duplicate of this one.

Bug #114415 marked as duplicate of this one.

Bug #114950 marked as duplicate of this one.

Bug #115074 marked as duplicate of this one.

Bug #115345 marked as duplicate of this one.

Bug #116061 marked as duplicate of this one

Bug #116205 marked as duplicate of this one

Bug #117679 marked as duplicate of this one