I need to check and see if I can access a file(the file is in use) So When I try to access it the application crashes. When I can access the file without the application crashing I would like a msgbox to pop up.
View 3 RepliesAn application working fine on Microsoft Small Business Server 2003 (Windows 2003) 32 bit when installed on Microsoft Small Business Server 2008 (Windows 2008) 64 bit crashed with the following trace;SUB: MyApplication_UnhandledExceptionException Type: System.TypeInitializationExceptionMessage: The type initializer for 'IV.modMain' threw an excep
View 2 RepliesIs there a way how i can see why my application keeps randomly crashing?
View 9 RepliesI am writing an application to compare each item on listbox1 to all items on listbox2. If the item is found, then remove it from both lists. The goal is to only have the items that were not found remain on both lists.
The problem is, the application just hangs and I never get any results. I looked at my code several times and I cannot figure out what's going on (programming noob I know.
[Code]...
Where it crashes(According to 3 messageboxes):
[Code]...
I'm working on an application that will send an email at a certian point.I'm using System.Net.Mail and it works fine when I do a "Debug - Start Debugging". But when I build the application, and run it, it crashes the whole thing when it gets to the client.Send(message) part.[code]
View 7 RepliesThis is going to be a strange issue and I don't expect an answer,.I'm using Ghost32.exe to image HDDs within a Windows PE environment. With the release of WinPE 4.0, we can now use the 4.0 .NET framework. So in order to capture any errors that Ghost reports, I'm redirecting the standard error stream so I can review it later.
But, when I implement those two lines of code (highlighted below), the application crashes.I've implemented error logging with the UnhandledException event of the application, but it never fires during this error. All other errors fire, but this one does not.So I ran it in normal Windows and I receive the following error:Quote:The system cannot find the file specified
But when I comment out those lines, it opens just fine. So I'm a little confused.
[Code]...
it only fills the first element of the array catches on the second run through
Private Sub fillArrayFromFile()
Try
FileOpen(5, "Data.dat", OpenMode.Input)
While Not EOF(5)
[code].....
I would like to ask some advise for the best thing to do regarding with this matter. Im working with a client-server application and I should run a pdf file from the server in the client application. The file name is the only saved in the database(MySql) and the full path is in the server. What technique should i used i order to access this file in the server., I planned to use the winsock. Im working in vb.net.
View 1 RepliesI am having this IOException error in my VB Console application i created. Following is the code and the exception is occuring on the highlighted line. If anyone has any pointers or suggestion to solving this problem, please let me know.
[Code]...
I am getting the following error in my application: Quote:
System.IO.IOException was unhandled Message=The process cannot access the file 'C:UsersSimonDocuments3Categories.wsp' because it is being used by another process.I understand what it means, but am not sure why it is happening. It happens after I open a file and try to save it to the same name. Here is my
[code]...
Using OpenFiledialog I can access a file. Is there a way that I can include a specific file in the code? This would allow me to access the file directly without the selection process and the application would always use that same file.
View 14 RepliesI developed a custom help system for my ACCESS 2007 application using Help Workshop. I wish to open this .chm file by a command button on a form but does anyone know how to do that?
View 9 RepliesI noticed that my application is running a bit slow. This is a Windows Service built using VB2010 with SQL Server as a back end. Its main function is to poll a folder looking for a text file. If found it reads the text file and imports the data into SQL Server.
While the slowness could be caused by a number of reasons, I am looking at my code to determine if it could be more efficient. Below I've pasted snippets of code where I initialize the DB connection and execute SQL statements. I've also included a snippet that illustrates how I am processing the text file.
I'd appreciate if the group could have a look at these and let me know if the method that I am using is the most efficient possible. At this time I am also focusing on other probable issues, but I can't rule out the possibility that the code that is in place might be a contributing factor.
[Code]...
I am trying to open an Access file but so far I am not succeeding. [Code] I receive following error: Cannot start your application. The workgroup information file is missing or opened exclusively by another user. I am sure the file is not open and I tried already to add in the connection string: ;User ID=User and / or Jet OLEDB:System database=C:SYSTEM.MDW; at the and but without result.
View 8 Replieshow to publish an application with an access database file on vb 2005?
View 2 RepliesI have an application that has an Ms Access 2007 DataBase which runns great if access is installed. Is there any code that I can use in vb that I would be able to run access with out installing it.
View 5 RepliesI've a problem with an application i have to use at work. That application is in .net (created by my company). The application call some object that are .exe file. When i try to open it i received the following error:
cannot access a disposed object
I know that it's not really revelant but i've got that problem on my pc and my collegue that use the same application doesn't received that error.I've already check their configuration and i've the same than us. I supposed there are some problems of compatibilty with the framework or thing like that.
Stacktrace
************** Exception Text **************
System.ObjectDisposedException: Cannot access a disposed object named "Form".
Object name: "Form".
[code]....
I am trying to build a setup file which will install my vb.net application with database and crystal report files to the client.
1.) I created my vb.net application in release mode.
2.) I created new setup project and added my vb.net application project in that solution.
3.) Also added the primary output in application folder
4.) [dun know how to add database so] created app_data folder inside the application folder and added the database file manually from add->file
5.) [dun know how to add crystal reports so] created reports folder inside the application folder and added the reports manually from add->file
6.) Build solution.
7.) Tried deploying in client machine.
8.) Application runs fine and works great. But crystal report files doesn't. When i try to open crystal report some long error messages comes in my way.
So I would like to know is the way i am doing to add the database file and crystal report files correct? how can i make crystal reports work in client machine?
I wrote an application which parses a website and downloads an mp4 file from website. User can select the path where he wants to download the video. When I try to download I get an exception for the file, Access Denied to Path. When I gave the permissions to folder that I chose, then works fine. How can I resolve that problem? End-User will select the folder. How do I change the permissions?
View 1 RepliesThis is probably a pretty novice design question. I'm trying to work my way through a number of requirements and give the users the experience they're looking for.I've written a tool that does big calcluation-type things. It currently consists of a class library and command line tool (separate .NET projects.) We're using an Access database format as the file type because it can keep all the various tables together in one file. A few other items about the application: There are not many users. There are no concerns with scalability. There are not great concerns with updates. Desktop is desired. Not web.Using VB and .NET 3.5 SP1
I now need to develop a GUI front end that will allow typical File/Open and File/Save type operations.Users expect that they can open a file, edit it some, then either choose to save it or close it unsaved without any changes being written back to the file. Saving it would obviously save all changes affecting all tables back to the file.
Does it then make sense to use a temp file for something like a proxy then? To, when a user "opens" a file, copy the source Access file to a local temp file and then use that for the editing session? Then, if the user "saves", copy the local temp file back to the source path?
Update: [tagged with ms-access tag too] Also, I omitted the fact that users would expect typical File / Save As functionality too. I think the design I've put in question in this post is what is traditionally called the Proxy design pattern. Has anyone tried this (successfully!) with Access database files before? Words of caution or advice?
Is it possible to use microsoft access database for Windows mobile application and save this mdb file locally in the pocket pc?because im trying to make an application to connect to mdb database but this imports seems to be not working.
HTML
Imports System.Data.oledb
oledb is not a member of system.data. why?
I have a dll that someone made me in C++. I needed to use this dll in VB, in order to do that I had to make another dll in C++ that has functions I can call in VB.
The C++ dll I made has 4 functions. 2 callback functions that retrieve information from the original C++. And 2 functions that I can call from VB to send that information.
I know the original dll works fine as Ive tested it endlessly in a console app.
However when I use it with my dll and VB.. I get random crashes.
There is almost no code in my VB app as its just for testing. It just outputs the information so theres no problem there.
I believe the problem is in the C++ dll I made. I am pretty new with C++.I think maybe a variable gets accessed in 2spots at the same time (is this possible?) and causes it to crash?[code]...
I am having a windows application. That downloads files from server and write into the local directory. It works fine. When we try the same appliication in Windows 7. IT shows an error Access to the path denied (While writing to the local directory).
View 1 RepliesMy app wont start up on any 32bit PCs. It brings an error. Ive tried all the solutions mentioned like going into Compile and changing the Platform, and other things. I have come to the conclusion it Might just be something faulty with my coding. Here is the only place in my code that could be doing it.
[Code]...
im creating a project on vb and every time i get quite far into it, it seems to stop taking in commands. For example i have form 1 with loads of buttons and wen i add another one and start debugging the new button (or whatever) wont be their, this has now happend three times and im getting very annoyed.
View 8 RepliesI'm using VS 2010, and I did a project using VB and a database in Access. The problem is that when I try to put that "application" on other computers, sometimes, is not working. I thought it can be because on these computers they don't have access, but on one computer, is running another app which is using Access and there is no Access installed. How can I check if my application requires Access to be installed or not?
Here is a example of how I did the connection:
Public AccessOLEDBConnString= "Provider=Microsoft.Jet.OLEDB.4.0; Data Source=" & myfullpath & ";Jet OLEDB:Database Password=password"
Function getConnection() As OleDb.OleDbConnection
[CODE]...
And when I want to have access at the data I'm doing like this:
dim conn as Oledb.OledbConnection
dim sql as string
dim ds as Dataset
[CODE]...
I developed a .net application which uses bonjour to chat with other instances of the app on LAN. The application works fine on 5 pcs(4 with xp sp3 and 1 with windows 7) out of 6. On one computer (with windows 7 installed) the app crashes as soon as i try to register into bonjour service.
After digging deep into the problem i noticed that too many svchost.exe processes are running on the pc on which app crashes. After carefully terminating the svchost.exe's i came to know that by terminating one svchost.exe which consumes around 50Mb Ram, the app works absolutely fine.
The process path "C:\Windows\System32\svchost.exe"
Process Command Line "C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted"
When i terminate the process, app starts working fine.
PS : Even after terminating the process restarts itself and app works fine.
I'm trying to get threading to work in ASP.NET but for some reason it keeps crashing my local server, and simply does not work at all when uploaded online. Here's the code:
[Code]...
but it's strange. I have a few combo boxes on a form that are fed via select query. They each are populated by their own table. Each of the tables feeding them have a codeassociated with a name, function etc... the code is what is stored in the form's table. I have another select query that converts the code to the name or whatever so that the user does not see the code, but the name associated with it when the form loads.What is happening is: The form loads and if i don't touch any of these combo boxes every thing is fine if i update them, I can't tab off the combo box or move the cursor anywhere, or even close the form. I have one of these boxes with the same code and it works fine.. I don't understand what is going on... I have an after update function that is the same on all of them and it is indeed updating correctly....
Public Shared Function LoadCallSource() As String
Dim sConnectionString As String = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:Documents
and Settingsdiw07My DocumentsDaily Backupsphone memo backend.mdb"
[code].....