Windows Forms - .Net 8.0

Hi, I'm getting an exception that really has me stumped. It's sporadic at best, it's only happened a handful of times. This particular time it happened when the user pressed 'Alt-S' to save the data that they were entering. Following is all exception information. Any thoughts much appreciated. Cheers

today we've found a critical issue regarding the ListView from Windows.Forms. it was confirmed on several machines with Win2K and XP. here's the problem: create a ListView with about 50000 rows. now use task manager to see the GDI usage of the process. everything seems normal. now catch the ListView's scroller and start to move it...

Excetremely annoying problem, I've an application with a long startup time. So I created another form with my logo in it to as a splash screen. The splash screen is run from another thread and is communicated solely through static method and Invoke()'s However, when I close my second form, the first one (main window) is hiding under all the...

I have a Windows Forms Class MainGUI I have declared MainGUI maingui; public System.ComponentModel.Container components = new Container(); in the Class I call another class MediaDriver with the Constructor class MediaDriver {

Hi, I have the folowing exception Exception : System.NullReferenceException: Object reference not set to an instance of an object. 00000019 3:30:48 PM at System.Windows.Forms.UnsafeNativeMethods.GetOpenFileName(OPENFILENAME_I ofn) 00000020 3:30:48 PM at

i have a windows form(Main) with listview, when click an item in listview i open other window form (Sub) which generate the selected item from parent window in as treeview items when click any item in treeview i display the content item in axWebBrowser, i close the sub form normally when i close the main the following error is generated An...

I was under the impression that frames could be used in Windows forms in earlier version of VB. However, in VB 2005 Express I don't see any such tool/control. Is SplitContainer used for this purpose in VB 2005? I want to create a frame in a Windows form because I'd like button clicks on the left side of the form to change the form elements...

Hi, I have a little trouble trying to assign a Toolbar control to another toolbar variable control. I am getting my forms controls with this: for (int j = 0; j <= frmChild.Controls.Count - 1; j++) { // Some operations

Hi, I have been trying to use a .net Forms control in my webpage to open up an application(notepad) on the client. The control works fine when embedded in a windows form, but I keep getting a security exception when trying to run it from my webpage on my intranet. I have tried playing with the Code Access Security settings, but I can't get it...

In my application I have a form (Customer) that I want to be able to open multiple copies at once. Within this form I have other forms that can be opened. Example: ZipCode. When the user enters a zipcode that is unknown this form will open. I don't want users to modify any of this customers data until they close the zipcode form. ...

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...

Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can effortlessly switch the default language on Windows 10 without reinstalling. I'll walk you through it. First, let's disable language...

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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...

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...

A Windows Forms form does not have the event Unload, like VB6. What one acts like?

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

How can i add a mobile payment intergratation into php mysql website.

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