When a button is clicked,my program gets the list of all Drives on a current computer.Then I use String.Concat to merge the drive letter and the rest of the path.So I get something like: "C:" + "somefoldersomefile.some_extension"That creates a full path to a file I am looking for.Then I check if that file exists.If it doesn't exist,I use Process.Start to run the setup file(to install the program I need).It works well and installs the program I need.I want my application,after the installation is finished,to check again if the program is installed and ofcourse confirm that it is.
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim DriveList As String() = Directory.GetLogicalDrives()
Dim Drive, FullPath, Path1 As String
Dim EmptyDrives As Integer
I want to excute the uninstall command with VB.NET, but want to wait until the uninstall process finished like Control Panel, the Shell command seem not realize it.[code]...
I've been trying to figure out how to pause a process. It seems I need to use 2 different APIs: SuspendThread and OpenThread.I found some C# code at this link that was working for them.After I translated the code to VB, I get nothing when I run the code. I debugged the app and put a watch on the function.The following is what I got from the watch: Name 'SelectedItems' is not declared.[code]In order to work with the selected process, I'm parsing the Process ID. I then use that PID to get that process and then work with it.I sue this type of code often in my project and it works just fine, which is why I am confused that I'm getting that message from the watch.
i'm working on a internet cache cleaner.. i load the cache files in a listbox and send them to the recycle bin. in this process, the app stalls until completion and the stall depends on how many files are in the cache.how can i do this and keep my app active, not stall?
I am currently using vb2008 express, I want to have a database inside the finished application. Not one that connects to an external database or any outside connections but one so all the data is readable, writable, deletable from within the application itself.
How can I stop my application quitting until a backgroundworker has finished? Its an updater, so basically I want the form to hide until the download is finished, and then exit.I've tried to make a setting to tell the app when it is still downloading, and on form closing check this variable, but it won't work. For some reason it still quits!The update window is in a separate form to the main form, so the user clicks 'Finish', the update form closes and the main form stays open.[code]
Just finished a database for stock management system in local terms and language. All according to their request and agreement. Now they need me to add undo/redo functionality to the application and I just dont know where to start. I am looking first for a general tip on where to begin:
I have one form, for e.g., that manages their stores. Then another for catagories...now they need the undo for all this things and am not sure if it is even possible cos datas are related.
I have a do until loop. But whenever my program get's to it, it always locks the application so I can't click on anything until the loop is finished. How do I fix this? I want to be able to stop the loop with a stop button.
I have recently finished a console application and deployed it to several computers on our network for testing. As it is just an EXE a copied to the hard drives of selected computers for now. When the app is launched it writes info to an sql DB so I always know which computers it is on.
During the past few weeks I have modified this app at least 6 times (improvements, adjustments, etc)
It is a paint to keep going back to the computers to update it with the new version, and getting mixed up which version i am on - LOL I am looking for advice on how I would go about doing this automatically, for example, it would be cool if I just had to put an updated file in a repositry and clients would use this to update.
In Visual Studio, when I view the properties of my application>assembly information - I can set a file version. Is it possible to extract this info and store it in a variable? I would like to dump the in my DB. Also I could then possibly compare the file version of the launched app against an updated file in a network share folder.
My application first checks if an SQL Server is installed before it runs. If there is no server it installs one. Now I want the application to pause or exit during the installation, since its thread may compromise the installation process, or is it not?. How do I do this? The Sleep() mmethod may not help because I can't know how long the installation process would take.
I want to insert a pause between the display of one control (a button) and the display of another control (a label) on a windows form. Specifically, I want the form to load with the button (and other controls) displayed, then, after a pause of two seconds, the label to display. I have tried timers, and .Sleep() but the effect is not what I want. That is, there is a pause before all of the controls are displayed, and all (including the label) are displayed at one time. I want most of the controls (all except the label) to display normally, then, after a two second pause, I want the label to display (on the same form).
I have a loop and within that loop I'm running a Dispatcher Timer.[code]Basically what I want is to show each item in the items list pausing after each on for 5 seconds. I want to show elapsed time in a label and after the elapsed time hits 5 seconds show the next item. This is not possible using the Thred.Sleep method, because it just freezes my application for 5 seconds, and shows the next item without ever updating the label with elapsed time.So what to use instead of Thread.Sleep to not freeze the application and update the label with elapsed time?
1) Why the pause button and also the pause command does not exist in VB 2010 Express?
2) I have some solutions under 2010. In 2 or 3, while debugging, I can change instructions without restarting the application. In others, I cannot change anything (Is like readonly), Looking in 'My Applications', Tab 'Debug', Option 'Configuration' I can choose several Options. In the applications I can debug, the default is 'Active (Debug)'; in the others is 'Active (Release)'. If I change the options, the word 'Active' remains attached to the original option.
I am trying a simple hello world application with a console. Using Console.wrtiteline("Hello World"). After the program writes hello world how do I get it to pause on the line? IE print "press any key to continue...."
I am moving a lot of data to MS Excel from my application. I use a conditional statement to choose which Excel page the data is transferred into. Then a For Next statement to divide the data into various areas on the Excel sheet.The first sheet will always work correctly, but on the next conditional statement to chose the next Excel sheet no data transfers when running the program. If I step the program by hand all data all code works fine. I believe I need to pause between the conditional statements but I have been unable to get one to work.In the following code I have been trying to get a pause between to conditional statement to no avail.
I am putting two questions in one thread. I am using VS2008 Pro.
1- Why my application stops running when I 'Click and hold the left mouse button' and resume after releasing the mouse button on Titlebar? i.e. why this happens when I grab the title bar? How can I avoid this so that my application run regardless if the form is moving or title bar is grabbed with mouse while debugging?
2- I want to make one button to pause the whole application then restart the application from the point where it stopped.
I have an app that I'm debugging and I need to pause it by clicking on a "pause" button in the development environment. I don't want to stop it programmatically, just manually to check what it is doing. I know this should be simple but I can't find a pause button anywhere on the toolbar.
I am looking for a VB.net book that strings me through the entire development process of an application (Prefered: WPF ,LINQ ,ADO). I have read a few books on OOP and VB.net with small code samples demonstrating the specific idea of the chapter.I think it would be really helpful if there was a book that programmed an entire application that uses a sql database (Northwind , Adventureworks).
I'm using Process.Start method to launch another application from my application. Until today, there was no problem. But I have tested my application in a different OS, Windows XP (SP3), and my application didn't work right on that. I'm also using arguments to run that application. I guess for some reason my application couldn't send arguments to other application correctly under Windows XP. Maybe it is related to my code. But you should know, it works great on Windows 7.
Am using vb.net windows application.Application containing one process with for and while loops.When i click on stop button then it should stop processing and it should losd gui.
I am trying to make a start and pause button (and hence continue) to start, pause, and continue my program. The start button works but the pause button does not. Can someone look at my code and see what the pause button needs to do to pause the program? I am using VB 2005. Here is my code.
I have written a windows service that is meant to launch a notepad when a specific action happens. The problem i have is that even though the service launches notepad, the actual notepad it self is NOT visible. I know that it has been launced because i can see the process in the task manager. By the way the process is listed as a SYSTEM process rather than a process under my user name (i believe that is because my process is a "LocalSystem" one).
I have access to the source code of a previously created app that work's as designed, but i am looking to update it for further enhance its ability. The change required may be simple in thought and also in design.Basically the app allows you to read in a data file a confirm the data file is in the correct format.Details fo the data file. All lines of the file are 120 characters long. If they are not then there will be an error returned. The fields within the lines have different properties and vaules and the validation on these fileds and lines work perfectly.
1. The first line of the file is always known as a descriptive ( header record ).
2. The next line will outline a detail record. The could be hundreds of these lines.
3. Finally there is a file total record.
A file could be four lines in total or 40000 lines in total. As mentioned the app works when there is one header and total record.I am looking to see if it can be modified.My intention is to merge multiple data files into a single file. There in lies the problem. There is a line in the code as per below.
Do While Not EOF(1)
As far as i can tell this means to go to the end of the file. When there are more than on set of data , there are errors messages generated because the code is looking only for one set of header and trailer records. As mentioned when there is one set of header total records , the apps will validate the file and return any error messages.What i think i need to do is insert another loop/s that say's read data between the header record and the trailer record , if there are any errors display it , then go to the next header / trailer records and display and errors , and continue to do so until you reach then EOF.
I want to add a process to my application, the process should be started to listen some events when the application run. I searched in Internet, and I didn't find answers... Some people said that could use "Application.Run", but I didn't find this function in VB.NET project.
myProcess = Process.Start("something.exe")nd want to start it using button it doen not find the file - i need to execute it from the same folder where application is how can i do that?
I am trying to set up an application process to run an executable, which I include in the project's installation directory, and pass it the necessary parameters; however, I am running into issues as it doesn't appear to be doing anything at all.
Here is what I have:
I define the Process As
Private WithEvents conversionProc As New System.Diagnostics.Process Then I setup the arugments and the process start info as follows: Dim ogrDirectory As String
We have an application that allows custom UI and interaction via SDK. A DLL is developed for this purpose using VB.Net and the SDK. An object variable refers to the application and there are some other object variables for components within the application.
