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Cannot Access A Disposed Object In Vb.net

Tweet Thread Tools Show Printable Version Subscribe to this Thread… Display Linear Mode Switch to Hybrid Mode Switch to Threaded Mode Jun 29th, 2012,05:14 AM #1 SystemX View Profile View Forum This shouldn't happen, because if the timer has a reference to the schedule object then the garbage collector should see this and not dispose of it. at System.Windows.Forms.Control.CreateHandle() at System.Windows.Forms.Control.get_Handle() at System.Windows.Forms.Control.PointToScreen(Point p) at Dbi.WinControl.Schedule.dbiSchedule.a(Boolean A_0) at Dbi.WinControl.Schedule.dbiSchedule.a(Object A_0, EventArgs A_1) 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) The CLOSE Keep in mind, I simply pasted all the commands into a sequence with 500ms pauses. 4. navigate here

more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed Join them; it only takes a minute: Sign up Cannot access a disposed object - How to fix? thanks Wednesday, May 02, 2007 2:22 AM Reply | Quote 0 Sign in to vote   "because i already closing the child form in parent form"    If you closed the But those same rules don't apply to a child. http://stackoverflow.com/questions/16355612/cannot-access-a-disposed-object-in-instance-vb-net

Showing results for  Search instead for  Did you mean:  Reply Topic Options Subscribe to RSS Feed Mark Topic as New Mark Topic as Read Float this Topic to the Top Bookmark Close Yeah, keep it Undo Close This video is unavailable. Now I realize that a few months have passed between the time you posted this and when I am answering, so hopefully you have resolved this issue.

Why would I be interested in your code that doesn't include what I told you to do? ni_error.png ‏4 KB SimpleAsynchronousReadWrite.zip ‏54 KB 0 Kudos Message 1 of 3 (1,727 Views) Reply 0 Kudos Re: Cannot access a disposed object- Visual Studio Express 2010 .net GPIB Commands fromm8 Ron Beyer 14-Nov-13 9:15am How can we help if you don't tell us what the modified code is? Object name: 'Form'.

Your code alos has the potential risk of shown mutiple forms with different data from drawing when calling your command method more than once against the same document in different time, I just saw this bird outside my apartment. Object name: 'Icon' in VB.Net Cannot access a disposed object. Sign in Transcript Statistics 1,443 views 7 Like this video?

em. Are you explicitly calling Dispose on their control? i had tested that if i ignore the exeption, actually it wont give any effect on my program. Wednesday, April 25, 2007 10:50 AM Reply | Quote 0 Sign in to vote hi decyclone, ya, you are right.

Thanks for any help Reply With Quote Jun 29th, 2012,05:35 AM #2 jmcilhinney View Profile View Forum Posts Visit Homepage .NUT Join Date May 2005 Location Sydney, Australia Posts 93,712 Re: check over here Originally Posted by jmcilhinney Well, for a start you haven't done what I said so why you would think that it would work I don't know. DotNetIQ 43,094 views 26:11 IDisposable - Duration: 7:41. If I receive written permission to use content from a paper without citing, is it plagiarism?

Object name: 'Form'. check over here See the answer in context. 2 Kudos Well, whether you solve it or not would be dependnet on how do you want to use the modeless form and if you know Objectname: 'frmBatchProcess'. Move the dispose and close of sr until after the write to the response stream.

I changed one method signature and broke 25,000 other classes. Object name: 'Form'. The time now is 01:49 AM. http://mediastartpage.com/cannot-access/cannot-access-a-disposed-object-object-name-system-net-sockets-socket.html But I'm having fun! | Post Points: 5 < Previous Topic | Next Topic > Page 1 of 1 (5 items) | RSS Copyright 1998-2016 vbCity.com LLC United States MY ACCOUNT

What I told you to do will work if you do it properly. LinkedIn Learning Solutions 24,119 views 4:47 C# Coffee Shop Management System (Computer Programming 3) - Duration: 35:29. Skullcloud 61,929 views 1:27 How to Get Horizon !!DIAMOND!! 100% !!FREE!! - Duration: 6:45. 360Gamer 68,827 views 6:45 Nexus Mod Manager Error: Unable to Write Permissions FIX!

Each time you close a form, it is disposed, data shown on the form is lost.

Wednesday, April 18, 2007 4:01 PM Reply | Quote All replies 1 Sign in to vote Determine the object that throws the exception during debug, then step through the code from the Showing results for  Search instead for  Do you mean  Search .NET Post to the Community Have questions about Autodesk products? Wednesday, April 18, 2007 2:33 AM Reply | Quote Moderator 0 Sign in to vote Once the form has been disposed it must be reinitialized before it can be used in What will happen is that you'll get one more tick that you may not be expecting.

The main thread shuts down - calling Control.Dispose() to indicate that I'm done with this Control and I shall make no more calls to this. pradip2609 13-Nov-13 8:24am FtpWebRequest request = (FtpWebRequest)WebRequest.Create("ftp://ftp.xyz.com/abx/pqy.txt"); 4 solutions Top Rated Most Recent Rate this: Please Sign up or sign in to vote. What if it was never initialized? weblink Join them; it only takes a minute: Sign up Cannot access a disposed object in instance VB.net up vote 0 down vote favorite i have problem with my project, i have

Was there no tax before 1913 in the United States? It's a really annoying problem because if someone did come up with a solution that worked - I wouldn't be able to confirm the solution because I cannot recreate the problem Could I work as a Professor in Europe if I only speak English? Have you tried to modify just one line and test the little change immediately?

Anubhav Roy 83,699 views 7:28 How to set up a Microphone for your computer - Duration: 4:18. This all works correctly but say a user opens the tickets form then closes it, then decides to check the tickets again and opens it again then it throws the error. Linux questions C# questions ASP.NET questions fabric questions SQL questions discussionsforums All Message Boards... It is completely not necessary to testIf myForm.IsDisposed Then...because the form is just created (unless you have complicated code in the form constructor that may dispose itself due to some initializing

The correct solution is to stop the timer before closing the form. –Jesse Weigert Mar 26 '09 at 9:55 add a comment| up vote 2 down vote we do check the GpibDevice.SynchronizingObject = Me #End If SetupControlState(True) Catch ex As Exception MessageBox.Show(ex.Message) Finally Windows.Forms.Cursor.Current = Cursors.Default End Try '*********************************************** 'OPEN SESSION IS DONE GpibDevice.Write("*idn?") Threading.Thread.Sleep(500) 'READ AND PRINT TO MESSAGE BOX Try I posted the code that i have.

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