I have a problem with any vb.net application running on my windows 2003 vps. I've tested this by creating the simplest form with just a button on it and executing the following code...
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I've developed a VB.NET application with Visual Studio 2008. The application communicates with SQL Server and processes a text file.
My question is about performance. While I run it from Visual Studio 2008, it takes 3 sec to complete. The same is when I run the executable created by the Setup Wizard on my desktop (Windows XP sp 3). But if I run the executable installed on a Windows 2003 Server, it takes 15 sec to complete! What could be the reason of degrading performance on the server vs. the desktop? The .Net framework 3.5 SP1 is installed both on the desktop and the server.
I am building a Setup project for a Web system using Visual Studio 2008. I upgraded my development machine from Windows Xp to Windows 7. The problem started with Windows 7. Whenever I try to build I get the above error. I ve tried several solutions given online but I ve failed to get a solution. When I transfer the system to a machine running Windows Xp or Windows 2003 Server it builds successfuly.
View 4 RepliesAfter compiling the project it works fine on windows 7 32bit and 64 bit but will not work on server 2003 or xp clients have not checked vista yet, i have verified that .net 4 is installed and i can tell you that i do not get an error message when installing apart from the icon that i have given the project does not appear and is a blank icon on the desktop. When i try to run the program it will try to start i see the service in the task manager and after a while it will error out and crash. I can see the memory usage go from 20,000K to 70.000k.
View 7 RepliesI have a problem with scroll in a treeview in a Windows forms application (Framework version 3.5).
The strange thing about the problem is that on Windows XP, Windows 7 and Windows 2008 the scroll works as excepted, but in Windows Server 2003 SP2 the scrolling doesn't work. Enable/disable Visual Styles doesn't seem to make a difference on Server 2003.
Steps to reproduce the error:
1. Add a treeview to a form and add x nr of root items (and 1 sub item to each item).
2. Expand a number of nodes. The non-standard thing here is that we are changing the node integral height because we display a usercontrol with the treenode (See example of the code below).
3. When you scroll afterwards, you cannot scroll to the bottom node. The scrollbar is all the way down, but we are not seeing the last node.
Public Shared Sub SetNModeHeight(ByVal Node As TreeNode, ByVal IntegralHeight As Integer)
'Create instance of tvitemex structure.
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I created the windows application with Crystal Report 9.0 in .net 2003. While Deploying the Setup file I created the Merge Modules. I installed .net Framework 1.1 in that user system. After that i installed the Setup File.
I can launch a program from inside my program and embedded it in my program using a Visual Basic Control such as a Panel. That works well if you launch say NotePad or Calculator.However, If I want to launch a program that uses MULTIPLE forms... all that gets embedded is the Main Form... All the other forms are floating on the desktop nonconstrained... So If I minimize my program the other forms are still shown.So what I am attempting to do is to get ALL the Forms from the external program embedded into their own objects on my form.Have pieced together a program from a couple of program samples that I have seen across the internet... Here's the code so far:[code]The Main form for the program that I am attempting to embed is 384 x 347 in size.Panel1 is a Panel Control on my Main Form."MyProgram.exe" is a program that I have written myself.I have looked at Spy++ for Visual Studio 2003 and it is able to identify ALL the forms from my program.My question is how do I embed ALL the forms from my external program in the NEW Program?
View 8 RepliesI have seen this happen before but am not sure how I resolved it in the past. On runtime the controls of my form change from the windows 7/vista format to an older version format as shown in the attached image.
How to display the controls in the format on the left (new windows format)
If I create a windows app which I link to an MS Access databse file that already exists..will I need to have MS Office installed on every computer at which I want to use the app? If not then how do I go about making a standalone windows app that will store information in a database of some form or another ?
View 1 RepliesI have created a program that when a user registers, it sends an email to that user, and three of my email addresses. The problem is that while it is sending, the window is un-usable and "does not respond" and the icon changes to the white box thing when you click on it. is there a way that i can run this process behind the program, so the window is still usable, but it still sends the emails?
View 1 RepliesI have two forms running in the same application but on different threads. HdForm and DataForm. I have a class library whit datasets and a stack in it. Cause both forms (different threads try to rad from the same class library i use a synclock to syncronize. But it seems like the synclock dont work.I get random errors in the HdForm while reading from myAr dataset. It says index out of range. But i know for sure that the index exist (i have make sure of that). When i click on the visual studio play button then, it goes again.If the index was realy out of range then it couldn't go further. So i think the synclock does not work and thus the dataset is changed in time while im the loop reading from MyAr.
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I developed a c# .net windows application and create Set-up for it on windows XP Professional OS .
And Try to Run This Set-up on to Windows 7 OS(32 and 64 bit Both) for installing this application onto Windows 7 OS Machine But Installation Failed and Throw Code Error: 2869.
I am developing an application having multiple screens appearing one after another using vb.net. My requirement is to bring some screens (windows form) in front of the user to take input and some of the forms can work in background (behind other applications) as they are only progress showing forms.
I tried Me.active(), Me.BringToFront(), Me.Focus(), and also some of the APIs like GetForegroundWindow(),SetForegroundWindow(), ShowWindow() etc, but failed to do so.
I tried another set of instructions
Me.TopMost = True
Me.Active()
Me.TopMost = False
Its works for me but once my form come in front, no other application can appear on top untill the my form is selected manually. Although I tried Me.Select() and Me.Focus() after above mentioned set of instructions but failed.
As I said, I have a vb.net application which runs perfectly fine on Windows XP EN. However, it becomes problematic when run it under Windows XP in German Language. I have a string type in app.config file, it stores a color's RGB value "0,102,255" as a string. When the application starts loading, I will grab that value as a string and use ColorConverter object to convert it to a color as shown the following
Dim oConverter As New ColorConverter
Dim oColor As Color = CType(oConverter.ConvertFromString(My.Settings.MyColorString), Color)
I have a VB 6 SP6 application that uses DirectX 7 to interface to a USB joystick (Logitech Extreme 3D Pro).The application works under Windows XP Pro (32-bit).I've got Visual Studio and the application running under Windows 7 Pro SP1 (32-bit).
I've calibrated the joystick under Windows 7.The VB 6 application does not find any DirectX 7 joystick device to connect to.Otherwise, the VB 6 application works (GUI, embedded video, serial channel, Ethernet connections).The VB 6 application must be accessing the dx7vb.dll or it would crash.The joystick disc did not provide a driver.I installed the latest joystick Profiler vendor software from the Web.This is my first attempt to use Windows 7 as a platform.I'm not sure what to try from a Windows 7 perspective.
I have a console application that is ready to be used as a windows service, I have been looking around for a couple of hours and tried many of the tutorials out there but none of them worked with me.
The closest one was: [URL] but it didn't go into the process of doing it. I converted that code to VB.NET but then I don't know where to go from there. I have the Module1.vb which runs my console application all ready to be used.
show me a way to use my console application as a service, I tried using the InstallUtil feature but my app never showed under "services".
Not sure whether this is possible, but I'm creating a file encoding applcation. When a file is decoded, it is saved temporarily in a temp directory, after which it can be opened regularly. However, I actually need to be certain the file is removed as soon as the application that has opened it, has closed it (e.g. has shut down). Otherwise, the decoded (secret) file is just hanging in the temp directory without supervision.
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I have a basic three form application. It doesn't seem to close after navigating through forms. If I were to open the application, and the main form is displayed. If I press the X button, the application closes fine(Goes from processes) If I were to open the application, and then navigate from the main form to another form using me.hide & form1.show, and press the red X on Form1, the application again, closes fine.
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I have an application (written in VB.net 2008) which reads a text file. Parses the record and uses the second field (a UK postcode) to match an Access database (SQL - Select * from Table1 ......), then writes a text file back out with the original input postcode plus several fields taken from the access database.
I have 3 counts happening during the process, records read, postcodes matched and postcodes not matched. I move these values to labels on the form, then every 50 records read, I refresh the form (me.refresh) to update the labels (showing the end user where the process is upto).When running, if I drag the window around the screen, or minimize then maximize, or click off the window to another window, the application seems to freeze and the counter labels do not refresh.
I'm have a quite big application which have 2 serial ports and access 1 DB (running on Background workers). I'm experiencing some random locks while the application is running and I started looking for something that could cause it. One of the obvious possibilities would be if I had in the GUI thread some While_End that would never return.I have one While_End in my GUI thread but IMHO it does not look like it would lock, so I want your opinion: Does the code below looks like will lock?? If 'yes', Why ?
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Does anyone can imagine a scenario where this While_End would not return ?
I have the requirement to create an application that has multiple front ends developed using Windows Forms, WPF, ASP and Compact Framework Mobile Forms.I would like to be able to create a series of obejct representing the business logic and have this logic accessible from the various front ends available. My first thought was to use remoting as I'd like to be able to pass the business objects back and forth between client and server but the compact framework doesn't support remoting and also transferring a full framework business object to a compact framework business object doesn't seem possible.My next thought was to use web services but again the passing of business objects seems to be very hard to accomplish. Without doing this I would have to create individual web methods for each business operation.
Finally my next option is to use sockets and write the whole client/server logic within some classes and expose them to the UI/Business layer. My only problem with this is it is not scaleable should the number of clients increase dramatically whereas using remoting or web services I can host the solution via ASP.Net.Does anybody have an ideas on the best way forward for this or even have any input on how they would write an application that required a windows form, wpf, asp website and mobile device GUI all of which want to use the same business logic?
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
View 7 RepliesI am making a System Tray Application when i minimize my form its hide itself in the tray but whenever i click on the tray icon my form shows now when my form shows up i would like to disable my Background desktop same as CardSpace when its shows up.
View 1 RepliesI want a sure-shot method to test if the application was run via the UAC box and has full administrative rights. Earlier, I thought of making a folder in C:Windows for testing but running it on other computers proved to be a failure!
The UAC box provides all administrative rights to the computer to do anything(including making folders and creating files in places which needs there rights) and also makes sure that any child program so called or created also does have the same rights as the parent.Is there a sure-shot way to test if my application has been provided all the administrative rights that I can maximum get by the user while running the application or not? If yes, I would be glad to have to piece of code-work!
I have a windows forms application written in VB.NET which scrapes information from serveral web pages (who doesn't right)? Anyway, I am having problem with one particular site where partway through the page navigation my application hangs. When I press pause (or break) in the debugger, it stops on a call to System.Windows.Forms.Application.DoEvents.
Resuming execution shows that it really is stuck on this line (it does not reach the next line of code). It also hangs about the same point each time I run it (at least its consistent). Since System.Windows.Forms.Application.DoEvents yields to other threads on the same processor and then resumes execution of the current thread, I think the problem is that some other thread is not behaving well (not returning from some event handling code). I thought Windows 7 was pre-emptive, which makes me
doubt that theory but I really don't know.
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The program scrapes somewhere between 12 and 14 pages before it gets stuck on the call to DoEvents. Does anyone have a clue why this would happen? Why would any call to DoEvents hang?
I am trying to use the System.Diagnostics.Process class.I have the following Windows Forms application. It consists of 1 Button and 1 TextBox. The only code is for the button click event as follows.
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim myProcess As New Process()
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I have a fully functional multi-threaded VB2008 console application that I need to convert to a windows forms application. I am doing this to add additional functionality at a later time. How would I go about doing this?
View 9 RepliesMy boss gave me an MS Access application that was developed by our former colleague. He wants me to convert that application to VB.Net Windows form application. I went through the MS Access Application. It contains tables, queries, forms, reports and macros. I could not find the programming (Where is the code written in MS Access?). My boss wants the windows application to be same as the MS Access Application (both in design and logic). I don't how will i develop the windows form. How can I achieve this?
View 2 RepliesMy boss gave me an MS Access application that was developed by our former colleague. He wants me to convert that application to VB.Net Windows form application. I went through the MS Access Application. It contains tables, queries, forms, reports and macros. I could not find the programming (Where is the code written in MS Access?). My boss wants the windows application to be same as the MS Access Application (both in design and logic). I don't how will i develop the windows form.
View 4 RepliesWhen trying to run the exe file error codes appear and back end data is missing. I loaded the 2007 runtime application.
View 4 Replies