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).
View 4 RepliesI 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".
I have a problem with my vb.net program. Some parts of the code dissapeard but i still can run the program normaly. Even if i add a new button it doesnt appear.I have a button that uploads some files to mysql database but then i double click that button a new sub appears with nothing in it..
View 5 RepliesI have installed WCF / WPF Extension with Visual studio 2005.
I developed the sample WCF services and to consume it I have developed the client project.
In client project I need to give the service reference, however I noticed here Add service reference option is missing.
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?
I am making a Visual Basic program that launches Halo CE, and two other programs at the same time. The two other applications load fine but when it tries to launch Halo CE an error windows comes up saying that there is missing files which there is not. I use
"Process.Start("C:Program Files/Microsoft Games/Halo Custom Edition/haloce.exe")".
I have tried to copy and paste numerous files into the "Debug" folder from the Halo CE folder but there is one file that is demanded but is simply not on my computer. I would also not want to put programs files in the debug folder because I wish to publish this to "Halo Maps."
Is there a way to start your program from the sub main() like you could with vb.net
View 4 RepliesIs 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)
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?
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.
View 1 RepliesI 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.
View 2 Repliesi want to know how can i call other files that i programmed to the main program?
View 1 RepliesI 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.
View 5 RepliesMe.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]......
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).
View 4 RepliesI 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]...
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]......
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.
View 2 RepliesMy 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]..........................
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.
View 4 RepliesTrying 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).
View 2 RepliesI have a program that has been running well under both Windows XP and Vista. Recently I tried installing the software on a Vista x64 machine and the program keeps crashing at runtime. I have tried running in Windows XP compatability mode and other solutions but nothign works. If I run it on the machine under Virtual PC using Windows XP I have no problems. The only two clues I have are these 1)One of the error messages I got when the program crashed said "missing dll file" and 2) the error log viewer shows that the error involves kernel32.dll This problem feels like it is way out of my league ont face value.
View 13 RepliesI recently installed visual studio 2010 and am using visual basic.The problem I am having is that some operators do not show up within the editor. For example the code line below
test = 3 + 5 - 6 / 7 * 4
only displays
test 3 5 - 6 / 7 * 4
the = + operators are not visible although they are there since the program will work as intended....and if I open up the .vb file in notepad everything is there. It just won't display within Visual Studio.
Multi-User Chat Program (Server & Client) with Main Server?
View 1 RepliesIm 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]...
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?
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.
I'm doing an experiment on WPF and MVVM, and while coding the ViewModel on Vb.net I noticed this red wavy lines under my ObservableCollection(of T)s T_T
Anyway, the application is in WPF & VB.Net, under the .Net Framework 3.5 (I checked) and I have an 'Imports System.Collections.ObjectModel' on top of my class. Intellisense shows the other classes on System.Collections.ObjectModel except ObservableCollection.
Here's a screenshot.
So, why is ObservableCollection(of T) missing and how do I make it appear?
I am trying to publish to my hard drive so it can later be burned to CD or DVD a project I have developed and I seem to be missing that file. The person I developed it for does not have good internet access, so downloading such things as SQLExpress and DotNetFx35Client is all but out of the question. How and where do I get the file? I know where to put it on my hard drive once I have it.
View 3 RepliesI have been given the source code to a 2005 VB project to modify. But I can't find the .sln file or a vbproj file or open the project. Don't I need that file to open the solution correclty? or do I have to start a new solution and just add in all files?
View 7 Replies