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by: salih ataoz |
last post by:
i close a form and i want to open it again it show me
Cannot access a disposed object
at vb6 this is ok
at comman1_click
form1.show
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by: Ryan Park |
last post by:
Hi,
//SITUATION
I got a panel control that hold a certain position on a form.
Every controls or UIs are on this panel.
At certain situation, I called dispose() method of this panel control
and change it with other panel which contains other business logic and
UI controls.
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by: D Witherspoon |
last post by:
I use the following code to open up a form.
-------------------------------------------------------
If fImage Is Nothing Then
fImage = New frmImage
End If
fImage.Show()
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by: theinvisibleGhost |
last post by:
I'm having a problem that occurs at random in my app.
I get an exception
"Cannot Access a disposed object"
In MSCorLib when calling boolean Change (int32, int32)
Stack trace reveals
System.Threading.Timer.Change(Int32, int32)
at Systems.Timers.UpdateTimer()
at System.Timers.Timer.set_Interval(double value)
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by: mthgk |
last post by:
I have a C# MDI app. The child forms do alot of work, so this work is
perfomed on a different thread created using ThreadPool.QueueUserWorkItem().
Because the status of the work is important to the user, I post the results
in a richTextBox on the child form. I have created an event to do this since
it is best to update the controls using the thread that they were created
with (or so I've read).
Anyway, the first time the user selects a...
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by: Tracey |
last post by:
sorry I post this problem again. I have to stop my work
to fix the problem.
I'm doing a multi form application(Not a MDI one).
My startup form say Form1 has a datagrid say datagrid1,
when I click a grid item in datagrid1, I wanna show
form2. In my code, I achieved that with:
Public class Form1
Inherits System.Windows.Forms.Form
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by: Rajat Tandon |
last post by:
Hi,
I have a grid which is continuously updating by the data from a external
event. When I close the form on which the grid is placed, then it gives the
error message ...
"Can not access a disposed object".
I understand that it is because as soon as the form is closed it will in
turn try to dispose the grid. I have unwired the event in the dispose of
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by: Amit Dedhia |
last post by:
Hi
I am having problem working with Timers in C++/CLI (the .NET version
of C++)
I have an application which has several forms with pictureBox controls
on it. There is a background timer executing every 250ms and it
generates a display image (using some real time data) and pastes those
on the picture box. As the picturebox was generated by main
application thread, I used 'control.Invoke()' in the timer function
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by: sdanda |
last post by:
Hai i am working on vb.net.
In my application I created four forms.Those are first.vb,f1.vb,f2.vb and f3.vb
In firstvb I added 3 checkboxes and a "display" button.The 3 checkboxes are used to display the forms f1,f2 and f3.If first checkbox is checked then it displays the f1 form.Similarly for f2 and f3 also.I kept all this code in the display button click event.In f1.vb,f2.vb and f3.vb I added back and next buttons. I wrote some code to...
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by: JustRun |
last post by:
Hi All,
I'm developing a windows desktop solution using VC# , I deal with my database using Dataset.
My Problem that i'm trying to call a Form to display a confirmation message after every Save, Delete ...., I wanted to make my own Message box, it works well but for one time only, if i tried to call it more than one time it gives me this exception:
<Cannot access a disposed object.
Object name: 'frmMsg'.>
My Code:
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by: marktang |
last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However, people are often confused as to whether an ONU can Work As a Router. In this blog post, we’ll explore What is ONU, What Is Router, ONU & Router’s main usage, and What is the difference between ONU and Router. Let’s take a closer look !
Part I. Meaning of...
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by: Oralloy |
last post by:
Hello folks,
I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>".
The problem is that using the GNU compilers, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed.
This is as boiled down as I can make it.
Here is my compilation command:
g++-12 -std=c++20 -Wnarrowing bit_field.cpp
Here is the code in...
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by: jinu1996 |
last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that captivates audiences and drives business growth.
The Art of Business Website Design
Your website is...
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by: tracyyun |
last post by:
Dear forum friends,
With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each protocol has its own unique characteristics and advantages, but as a user who is planning to build a smart home system, I am a bit confused by the choice of these technologies. I'm particularly interested in Zigbee because I've heard it does some...
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by: TSSRALBI |
last post by:
Hello
I'm a network technician in training and I need your help.
I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs.
The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols.
I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...
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by: adsilva |
last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
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by: 6302768590 |
last post by:
Hai team
i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system
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by: muto222 |
last post by:
How can i add a mobile payment intergratation into php mysql website.
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by: bsmnconsultancy |
last post by:
In today's digital era, a well-designed website is crucial for businesses looking to succeed. Whether you're a small business owner or a large corporation in Toronto, having a strong online presence can significantly impact your brand's success. BSMN Consultancy, a leader in Website Development in Toronto offers valuable insights into creating effective websites that not only look great but also perform exceptionally well. In this comprehensive...
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