Error 3 'Sub Main' Is Declared More Than Once In 'SystemInformation': SystemInformation.Program.Main()
Jun 14, 2010
I have a solution with more than one project and the main project contains buttons to open forms from different projects that are in the same solution. Say Project1 is the main project and Project2 is the different project that gives the following error when i compile it:
Error 3 'Sub Main' is declared more than once in 'SystemInformation': SystemInformation.Program.Main(), SystemInformation.My.MyApplication.Main(Args() As String) System Information II
I have already seen other threads with this question but it does not work for me because i have more than one project.For Project2: Application Framework is disabled and the startup object is "SubMain".
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Jul 28, 2009
My app works fine on the development machine and 3 other machines. However, some machines just show the main login box and then fail to show the main screen. There is no error message. I installed VS 2008 express on on of such machines and when i compile the project, the following errors appear:
Type 'Microsoft.Office.Interop.Access.Application' is not defined.
Type 'dao.DBEngine' is not defined.
[CODE]..........................
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Mar 9, 2012
Recently i bought the book by Troelsen about VB and the net and tried to run the programs e.g.:
Module Module1
Sub Main()
EntryPoint.Main()
[code]....
I had to add the first sub "Main" otherwise it would not run. Is it possible to do without that sub in the way member OLiver does in the examples he provides?
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Mar 11, 2010
Is there a way to start your program from the sub main() like you could with vb.net
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Jul 4, 2011
I recently started learning how to use visual basic and whenever i try and make programs (aided by microsoft tutorials), it says in the error section: Sub Main missing from (my programs name).
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May 12, 2011
Is it possible to use a sub Main() to start you're application rather than a form, if so how? Also how do you implement the cmd commands such as "[application path here]program.exe colourclicker" The above command would start the program but would only show a certain form.
EDIT Is there another way other than unchecking the 'Enable Application Framework' checkbox? (As this disables XP Styles and uses the ugly classic windows styles)
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Aug 1, 2010
I am studying Visual Basic How to Progra by Deitel on my own. I am a beginner. My last two programs I have received the error message: Sub Main() not found. I am certain that I typed it in underneat Module Comparison. The program will not run.
Could it be a naming problem? If so can I correct it without re-typing the entire program.
I am using 2008 Visual Basic Trial Edition. Would it be better to use 2010 Visual Studio Professional?
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Jan 27, 2011
My software will simulate a few hundred hardware devices, each of which will send several thousand reports to a database server.Trying it without threading did not give very good results, so now it's time to thread.Since I am load testing the d/b server, some of those transactions will succeed and a few may fail. The GUI of the main program needs to reflect this. How should the threads communicate their results back to the main program? Update global variables? Send a message? Or something lese?
Now, if I update only at the end of each thread then the GUI is going to look rather boring (and I can't tell if the program hung). It might be nice to update the GUI periodically. But that might cause contention, with threads waiting for other threads to update (for instance, if I am writing to global variables, I need a mutex, which will block each thread which is waiting to write).
I'm new to threading. How is this normally done? Perhaps the main program could poll the threads, instead of the threads iforming the main program?
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Jun 22, 2010
Im trying to make a program that has a main form(menu form) and when i click on the buttons another separate form will appear.
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Jan 23, 2012
I have developed an application with a plugin architecture using interfaces. I realized that when I release the API for 3rd party plugin development, someone would be able to create a loader program to replace my main program quite easily. Is there any way I can make the plugin dependent on my main program? All my main program does is get an icon and a description of the plugin from the DLL plugin (using the interface) and then calls the dll's interface function to create and display the form.
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Oct 8, 2010
i want to know how can i call other files that i programmed to the main program?
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Dec 16, 2011
I have an application I've written for some of the people at work and there is one bug that I have no idea how to solve. The application is multithreaded so that the main form can be updated with new information as it comes in. Throughout execution, several other forms come up as well (one at a time).Every so often I get reports that the program freezes. When I check out the program it looks like the main form is not being updated(checkboxes are see through, textboxes are blank) and the main form can't be moved around. This only seems to happen sometimes when the program is left for long periods of time (+30 min) and only on the released .exe and never in the debugger(as of yet). I've tried leaving the program running overnight and it had no problems.
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Sep 15, 2010
Me.Focus() doesn't do the trick, my program is hereQuote:
Public Class Form1
Declare Auto Function mouse_event Lib "user32.dll" (ByVal dwflags As Integer, ByVal dx As Integer, ByVal dy As Integer, ByVal dwData As Integer, ByVal dwExtraInfo As Integer) As
[code]......
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Mar 18, 2011
I want to launch a bunch of threads, each performing the same task, and know in main() when each finishs and it if it was successful or failed.The solution offered was to use a ConcurrentQueue, but other posts have recommended using a BackgroundWorker Class, or a thread pool.Is there a definitive answer?Again, all threads perform the same code and have a pass/fail result. I want to run more than there are available threads so as soon as one thread finishes I will launch another asap - I want tehm to stress a remote systems as much as possible (reather than stressing my local PC with too many threads, so I will need to experiment to determine the optimal number of threads).
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Apr 27, 2011
I feel like the answers I seek are rather obvious so I feel silly for having to ask, but I just can't seem to figure this out (I'm new to threads, and am really only comfortable using them in Java at the moment). I have an Excel Addin application created with VB.NET, and I've noticed that occasionally while it's running some code (it's no one specific block of code) the program execution will just stop. This is especially problematic when I've set ScreenUpdating to False for Excel because the users then have to completely close out of Excel to get ScreenUpdating to true.
[Code]...
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Dec 10, 2011
I'm having trouble getting this program to work.. I just cant figure out how to get results from GenerateNumbers outputted to the main program to be used in other functions/procedures.I tried
Dim Result1 As String = ThreeResults(0)
Dim Result2 As String = ThreeResults(1)
Dim Result3 As String = ThreeResults(2)
but for some reason it sets the value of each ThreeResults(x) to " "[code]......
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Apr 1, 2010
how to make program for hooking/inject .dll file into main.exe I want to make 1 program to inject/hook .dll file to main.exe fast . Its about the game MU Online.
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Sep 4, 2011
I have but a vb project and i have but 5 buttons on the main page i am trying to have so when you click on the button it will install an exe map program.
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Apr 7, 2011
What I have is a user control that has two RichTextBoxes. In the user control, there is RichTextBox1's TextChanged event, I want it to set RichTextBox2's Text to the same as RichTextBox1's Text, I'm currently using: RichTextBox2.Text = RichTextBox1.Text. The user control is on the main form, when I run the application and type I get this error: StackOverflowExecption was unhandled. [Code]
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May 17, 2010
Trying to get it to behave like C#, where there is a Program class with a static Main method.However, in the project properties, I cannot set Program.vb to be the startup object, only the forms (it is a forms application).
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Dec 3, 2010
I been trying to create a section for my program to change the backgroundimage property of the main form. let me show the code: (some parts may be bad written but I was trying to try to find the problem) this code is a click event from a button
[Code]...
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Aug 12, 2011
I had a blue screen of death while debugging my program and, after rebooting and restarting MS Visual Basic 2010 Express, I tried to reopen my main source file but got this error:
[Code]...
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Apr 6, 2010
How to make when the error shows "can't find main.exe to have sound"[code]....
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May 24, 2009
I get an error while trying to install a third party Excel add-in [Thomson One Analytics]. Error: "Compile error in hidden module: Main" Microsoft Excel 2003
[Code]...
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Aug 10, 2009
Multi-User Chat Program (Server & Client) with Main Server?
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Oct 27, 2011
Im having trouble getting my code to display the form which would hold the results from this little exam.Whenever I click on my "Score" button in the main form the program just sits there. I need for it to display the Results form if all of the answers that have been inputted are correct, and if one of them isnt I need for it to display the error message. Im thinking the problem is in my Try-Catch statement, but I really have no idea.
[Code]...
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Jun 4, 2010
Dim frm As Form
For Each frm In Forms
Set frm = Nothing
Next frm
The above code is what I used in VB6 to close all forms associated with my programs before my program closed. I have been searching for information on how to make sure all forms are closed when closing a VB2008 program.
I have seen info on using the Project Property Shutdown mode When startup form closes and I currently have this set.
Is this all that is really necessary? Will the garbage disposal close everything else to free up RAM?
Also, if I have several forms open and want to close all from the main form without closing each one individually, what is the best approach? Is there a collection like in VB6, go through the collection, compare it to the name of the main form and close it if it is not the main form?
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Feb 21, 2011
I have a program that starts another program after setting the regkeys basically the program continually syncs the calandar of outlook and another application.I set the regkeys than launch the c:sync.exe app. I have tried a simple process.start and launching the process as a thread and they both do the same thing: The other process starts and works as it should but my main program goes "White screen" or "not responding" until the process.start has exited.
I want the process.start to run in the background so if users click in my main app it responds and truly that they can access the context menu of my main app from the taskbar while the process.start is running.
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Feb 27, 2011
Additional Information: Im using Visual Studio 2008 (VB) I have experience with C# I cant see where to define the Main Sub, here is my problem: I created a WindowsApplication in Visual Studio, it created a Form for me, when i click 'View Code', something like this appears.
[Code]...
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Aug 31, 2011
I have taken over support of a VB.Net WinForms application. I am actually a c# developer and am more familiar with the setup of visual studio projects in c# projects. Now I am trying to determine why my application is crashing on a specific XP installation, and I read the suggestion here[URL]..to add a try catch block in the main function. This is suggested in about the 5th post from the bottom. (I will quote it below) However, if I look in the VB.Net visual studio project, I do not find a Main() procedure. What I do find is a grey folder called "My project" with a "Application.myapp" file inside it. This file has an associated designer file, but if I click on it I see the following xml:
[Code]...
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