What if the child form was already disposed? cause debug until here, u can found that ?Form.handle already throw the expection. Thanks Reply With Quote Quick Navigation Visual Basic .NET Top Site Areas Settings Private Messages Subscriptions Who's Online Search Forums Forums Home Forums Visual Basic Visual Basic .NET VB.net CodeBank Visual but if the disposed form are throwing exception, i also need to catch it up, right? navigate here
Otherwise just show the form. You're trying to solve the wrong problem. How do unlimited vacation days work? Once you fix it, you should be able to remove the Try block, and not catch anything. If you can, post the parts of the code that throws the exception,
Cannot Access A Disposed Object C#
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 When you "New" the form again, you need to reload data to the form, or even worse, you may have to try to restore the data shown on a closed form. On top of this, how can I check to see if the object is disposed? Better Code Today 567 views 7:41 Exception handling in C# Part3 - Duration: 5:53.
Share your code, may someone spot the problem... (Add the code to the original question) thatraja 13-Nov-13 7:38am Include this in your question Ron Beyer 13-Nov-13 8:06am
Solution 3 Accept Solution Reject Solution Please see this example on how to read a file from an FTP, you are missing quite a bit of stuff required, its more than giving the
Tuesday, May 31, 2011 6:00 AM Reply | Quote 0 Sign in to vote RSin, This is a Visual Basic forum so pleas don't abuse this forum by dropping C# code
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If you do then TS1 will not be Nothing when you first check so it will never call Show.
The reason for this approach is that the module that has the forms created at runtime will be passed to the users for an advanced login system that connects to my
share|improve this answer answered Jun 7 at 15:53 Gerben 277 add a comment| Your Answer draft saved draft discarded Sign up or log in Sign up using Google Sign up Move child instance management code to the parent class, that's where it belongs. But as you mention calling Close() already will do the dispose, so the error still occur. and in other test case i found that maybe is because i already closing Cannot Access A Disposed Object Object Name Form1 C# This works fine on the first time I try and open a form, but on the second try, I get an error message saying Cannot access a disposed object.
P: n/a D Witherspoon I use the following code to open up a form. ------------------------------------------------------- If fImage Is Nothing Then fImage = New frmImage End If fImage.Show() ------------------------------------------------------- It works the Cannot Access A Disposed Object Object Name 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 Everywhere on the form I was starting the timer, I had it check this flag. It will hide the form and not dispose it.
Hej! Cannot Access A Disposed Object C# Socket How to capture disk usage percentage of a partition as an integer? Paulo Bonnes 218,402 views 3:54 Nexus mod manager error fix - Duration: 2:44. Wednesday, April 25, 2007 10:19 AM Reply | Quote 0 Sign in to vote Khin wrote: thanks for reply.
Cannot Access A Disposed Object Object Name
e.g., ChildForm.ResetForm : ChildForm.Show Let me know if this fixes problem. If problem not fixed, maybe post all of the code in the method that causes exception. Regards, check over here As you haven't shown us what you have done then there's nothing we can do for you. so is it the dispose method cannot use if the form already been close and open again? When answering a question please: Read the question carefully. Cannot Access A Disposed Object Sql Server
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 Register Help Remember Me? rated by 0 users This post has 4 Replies | 1 Follower TomSoCal Los Angeles, CA Since 9/4/2002 Posts 63 Reputation 1,050 Reply Tom Trujillo (TomSoCal) Posted: 9/22/2006 9:50 AM rated Up next C# Disposable pattern, Dispose Vs Finalize - Duration: 26:11. his comment is here share|improve this answer answered Sep 7 '08 at 17:32 Garo Yeriazarian 2,3471029 add a comment| up vote 2 down vote I had the same problem and solved it using a boolean
Should I report it? Cannot Access A Disposed Object Marshalling Window Frame Wednesday, April 18, 2007 4:01 PM Reply | Quote 0 Sign in to vote hi all, Form.Close() --> already displose? Close all open ones Private Sub CloseAllForms() For Each Form In Me.MdiChildren Form.Close() Next End Sub 'CloseAllForms And then open the new form Private Sub PrepareForm(formName As Form) Cursor = Cursors.WaitCursor
Object name: 'Form'.
Thanks Reply With Quote Jun 29th, 2012,09:33 AM #8 jmcilhinney View Profile View Forum Posts Visit Homepage .NUT Join Date May 2005 Location Sydney, Australia Posts 93,756 Re: Cannot access a If it didn't work for you then you didn't do it properly. Wednesday, April 25, 2007 10:50 AM Reply | Quote 0 Sign in to vote hi decyclone, ya, you are right. Cannot Access A Disposed Object Timer If you do then TS1 will not be Nothing when you first check so it will never call Show.
New Post Related Content Search the Autodesk Knowledge Network for more content. Sign in to add this to Watch Later Add to Loading playlists... Do so with the FormClosing event: Protected Overrides Sub OnFormClosed(ByVal e As FormClosedEventArgs) anInstance = Nothing MyBase.OnFormClosed(e) End Sub You will also need to do something reasonable when an existing instance http://softwaredevelopercertification.com/cannot-access/vb-cannot-access-a-disposed-object.php What you can do is in your timer_tick, check the Enabled property of your timer before executing the Timer_Tick method.
Originally Posted by jmcilhinney This is a variable declaration: vb.net Code: Dim var As SomeType This is declaring a variable, creating a new object and assigning it to the variable: vb.net To start viewing messages, select the forum that you want to visit from the selection below. so i not very sure that if i didn't displose after close will cause any issue to my program. Thanks Matt. Thursday, April 26, 2007 2:27 Hypothesis: Maybe you have a main thread and a timer thread accessing this control.
Why would I be interested in your code that doesn't include what I told you to do?