How The Application Works
Jun 8, 2011
I am a final year computer science student and i was confronted with this topic: Design, development and implementation of an efficient Bandwidth management system. i code with Vb.net and microsoft SQL 2008 as my database engine. honestly i've not written such application before, so i need a guide how the application can be built(especially the interface).please am not asking for the source code(if there is any), i only need a detailed flow on how the application works.
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Jul 20, 2010
We have an application(.exe), longtime back some developer wrote the code and now he is not with the company. I happend to be support this application. I have to do some modifications in the code.I have a .vb file and .Config file with me. The .VB file is calling a SSIS pkg and doing some dataload and creates some files and it formate the file names what it generates and it send emails to large group of ppl.I have opend the code in Visaulstudio but i do not have any option to debug or do some breakpoints.How can I use this config file?Do I have to add both of them in the project? To debug I need SSIS pkg as well so do I have to add all these 3 of them into my solution?I know where to change the code, after changing the code how can I create a application EXE file?
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Mar 29, 2011
I have had afew people test my application and all of the 32-bit users are telling me it is not working.
Problem signature: Problem Event Name:
CLR20r3 Problem Signature 02: 1.0.0.0
Problem Signature 03: 4d9235a5 Problem
[code]....
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Mar 8, 2010
I have an application developed in VS2008 VB.net. It is a numberpad with buttons for 0 - 9.When published and installed on my local PC, everything works as expected. I open a browser window, and am able to click a number-button and have the corrosponding number sent to the active window location. When installed on other PC's, the numbers sent to the active window location are repeated many many times. If you click the "3" button, then anywhere from 10 to 50 "3"s are sent to the screen.All PC's have Windows XP Professional, Version 2002, Service Pack 3.The only differences I can detect are the many many .NET frameworks installed on my computer and not on others.[code]
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Oct 27, 2009
Can I make an application that works on other OS's (e.g. Mac OS X, Linux)?
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Nov 4, 2010
As far as I understand from the docs, it seems that Application.Run() starts a message loop on the current thread, which in turns enables it to process user input (Is that right?).The overloaded version Application.Run(Form) basically does the same, only it exists when the form closes, and it shows the form by default.timer ticks after 20mns, and has to execute say approx. 15 tasks one by one, every time creating an instance of a progress dialog, initially hidden in the taskbar.
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Nov 23, 2011
i got the following regex, which is working on some regex testers out there flawlessly.I want 1 item with "500", 1 with "600" and 1 with "-100".
Dim matches As MatchCollection
Dim regex As New Regex("(d+)s/s(d+)s((-?d+))")
matches = regex.Matches("500 / 600 (-100)")
My matches.count is one, with the complete string. Nothing else.
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Jun 8, 2012
I am totally confused about the way SQL server Express works with my application, it seems like it is a hit and miss whether it works or not.In my Server Explorer if I show data, I see data in my tables.
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Jul 2, 2010
I seem to have a problem with an application i made. I hope you can help me with this as it has puzzled me for awhile now.
[Code]...
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Jun 23, 2010
I have VB.Net application that has worked fine for years on XP and Windows 7. For some reason the last update I put out does not run even the simplest VB commands.Simple Environ() fails.I have tried putting simple VB commands onto a MsgBox on the start of the app and everything raises an error. I have no idea what is going on! The exact same app runs fine on Windows 7 clients. All the XP machines including a fresh XP virtual machine with the .Net 3.5 framework even gives the errors. No VB commands are working. I thought maybe something happened to my vbproj files, so I copied an older one from a couple weeks ago when things worked fine and it still does not work.
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Mar 14, 2010
I have a client/server chat application which I made . My question is how do I make the application work not only Locally but On any other network. I tried putting my IP in the part of creation of the client socket .
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Jun 15, 2011
I'm developing an application in vb.net. You drag any type of file onto the exe, and a window pops up with some options for the file, then it saves the file to a different location, works some SQL magic, etc. It works great for the most part. The only issue I've found is that if the path of the file contains any spaces, the application will crash immediately with the error window:[URl]..I'm using: Private filename as String = Command$ This is located right inside my form's class declaration, not within a sub/function.Without this line, my program runs fine (although useless, without accessing the file).I've also tried (I think this was it, I don't have the code with me at the moment): Private filename as String = Environment.CommandLine So, in vb.net, is there a way to drag a file onto an exe and use that path name, even if there are spaces in the path name?
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May 14, 2010
The fact is I'm making an application, which users can install by using a Setup file...once installed the data in the database can be updated by a centralized server. To do this, they can insert a DVD/CD-ROM and export the necessary data towards it. I need to do it that way, because some of the users who really need this data will be using stand alone computers.The application gets it's data from a mdb-file and the connection remains open as long a person works with the application (maybe not the best way to do, but I know :-) )...when the user uses the application, he can perform an export...this exports the .ini-file and pictures (which works fine), but he also needs to export the mdb behind the application...I already tried connection.close() before and connection.open() after the System.IO.File.Copy...but that doesn't seems to work.
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Jun 3, 2011
So I wrote a VB.net project in Visual studio.I have a scheduled task that is set to run the program every morning at 10AM. If I use windows explorer and double click the application, it runs fine.If I open task scheduler, open the task properties, and browse to the application, then choose run, the program fails, due to Runtime exceptions.I know I have the path entered correctly, since I can debug the instance when it crashes from the task scheduler. VS2010 pulls up my source code.The exception is System.IO.FileNotFoundException, remember, it works fine when I double click the app. If attach a debugger to the process after it is executed from the task scheduler, I can then restart the debugger, and Voila!, The application runs fine.
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Jan 22, 2011
I have developed a VB 2010 express application that works on my windows 7 machine, but when I deploy it to other windows 7 machines the application will not run at all. I created an msi script to install the software on other machines and it includes the .NET 4.0 framework an all of my application dll's and such. Any idea what might be he problem?
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Jan 5, 2012
I have a spreadsheet with this code:
'insert link
sheet1.Hyperlinks.Add(sheet1.Range("P1"), "http://http://www.vbforums.com", "")
the code of the button (ribbon)
[CODE]...
When I press the button, it connects to the web site. when the sheet1 is selected, it works, but when the sheet2 is selected, not works, why? the path is sheet1,What's wrong?
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Jan 19, 2010
I'm porting code that I wrote for use in a Windows Forms application to a Windows Service, but for some reason, the code that worked in the Windows Forms application is now throwing errors in the Service
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Jun 26, 2010
this is my code:
Dim WB As WebBrowser
WB = GetPage("http://speed.travian.ir/a2b.php?z=" + VillageID.ToString + "&c=" + Type.ToString + "&" + AttackParams)
[code].....
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Feb 26, 2012
I have created lots of applications with visual basic 2008, tested them on many other computers, worked like a charm. After I moved to 2010, all my applications compiled, ran without a problem even on different machines (worst case scenario was that some older PCs needed the 4.0 framework to be installed first). Anyway suddenly I ran into a very weird problem which I cant figure out.I have Visual C# 2008 (Express Edition) on this machine installed and everything ran/compiled flawlessly but when I tried the application on a different computer, it can't even start. It crashes as soon as you attempt to run it and displays that 'Application Stopped Working' error.
I also tried to compile it as Release, then start the exe .. still the same problem. Sorry again for asking this on a VB forum, I just started playing around with C# after VB and didn't know where to ask.Aditional Info: Visual Basic 2008 and 2010 programs work perfectly on the same machines on which Visual C# 2008 doesn't. (I would be glad if some one could at least re-direct me to somewhere else )
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Jul 21, 2009
UserLogin.zip Starting off with a very simple user database with encryption based on [URL]..Updating to an SQL database WORKS FINE using the SqlDB classes. Updating to a 2003 Access MDB DOES NOT - when I use OleDB Classes. They are almost identical. I am getting an error ""Operation must use an updateable query", but all the articles on this do not seem relevant. I need to get the MDB working.
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May 10, 2011
I have a COM object that works fine in VB.NET, but not in C#. Both projects are .NET 4 console applications. The COM object loads in C#, but the methods don't return any values. Why would it work in VB.NET and not C#?
[Code]...
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Nov 9, 2009
I have the following code written in VB. It works in VB 2008 Express But not VB .Net 2003?
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Mar 30, 2011
I just completed my app and used advanced installer to make a setup of it, i sent it to my brother for him to test but when he runs it and tries to sign in he gets these errors
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When JIT debugging is enabled, any unhandled exception will be sent to the JIT debugger registered on the computer rather than be handled by this dialog box.now i think it means that it cant find the mysql connecter and data and stuff but the user shouldn't need to have that right? it should come with the app to make it work for everyone
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Aug 17, 2009
does ADO works on VB 2008 ?i have this error when i tries to run this code
'Item' is 'ReadOnly'
and below is my code:
rs.AddNew()
rs!("pwd") = TextBox1.Text (it gives me the error here )
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Dec 3, 2011
I'm trying to know if the scrollbars (in my case, the horizontal scrollbar) are showed in the main access window. I use GetScrollBarInfo.There are 2 days I'm, searching info about the function and the parameters, but they are hard to find.I can only find general descriptions of the API.I found some constant values in the ApiViewer 2004.
Here is my API-calling code (in a form class-module):
'vede se la scroll bar orizzontale visibile
Dim void As Integer
[code]......
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Feb 22, 2009
im just wondering how the try statement works. what i want to do is this: allow user to enter link eg "calc.exe" then open that link using shell like this: [code] if the user enters a name that the system doesnt recognises it glitches, so i thought i would try the try statement.
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Mar 1, 2009
I thought I knew how ViewState worked, but I was wrong.I don't understand why the following ASPX page preserves the value typed into the TextBox after clicking on the Button?(ViewState is disabled for both the page and the TextBox.)
[Code]...
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May 21, 2009
Not sure if this is the right place to post this, but the VB Script forum seemed only for inet apps. This is a script that runs when a user logs onto windows to map network drives.The PROBLEM: When a user logs into Windows on our network, this script runs, but sometimes it does not work. There is no MsgBox and the network drives do not map. However once Windows is loaded completely to the desktop, you can run the script and it will map the drives.
Does anyone see anything wrong with this code?? I did not write it, but am in charge of finding out why it is woring sporadically.
[Code]...
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Jun 11, 2011
My curse seems to be SendInput... I have tried many sites and code variations and it never works right... it always returns an error. So can someone just whip together a quick class that has 3 public methods, one for keyboard (that takes a Keys data type) one for mouse, and one for Hardware?
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May 24, 2010
I am developing an application that will engage a bar code scanner and will need to be listening for input even when it is not the active application or from a separate thread from within the application. I can get a handle to the hook when I set the project to compile for Net 2.When I set my project to compile for Net 4 I cannot get a handle from the SetWindowsHookEx.Same code, no changes at all.While obviously I can get a working DLL out of this it really is buggin the out of me.Additionally, if one of my colegues needs to adjust this DLL in the future and does not know, they may compile it in Net 4.I also have no idea what will be the effects if I reference this DLL in another project that is compiled in Net 4.Lastly, I am worried that I may encounter more difficulties like this in the future if I cannot figure out what the difference is.[code]
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