App.quit With Multiple Apps Open?
Mar 3, 2010
My program opens an excel file with excel.application's .visible=false. If the code is running and I manually open any excel file the excel file being used by code will then open up as well (making the .visible=false useless). Then at the end I use the excel.application's .quit to make sure that instance of excel quits, but it will quit every open instance of excel (even ones not opened by that code).Is there any way around this? to make sure it does not appear when other files are opened, and to make sure it only closes that one instance of the excel application.
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Jul 22, 2009
How can I make this program not to give me the results for the quit command input of -999 but rather just to quit without the results?
Sub Main()
Dim TempIncelsius As Double
Dim TempInput As Double
Dim Formula As Double
[CODE]...
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Mar 17, 2012
How to Open my gmail Inbox from my vb apps.
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May 8, 2009
I have an application which writes to and reads from a database. I'd like to be able to have the application installed on a number of computers with the database installed on a central server which all of the applications will connect to.
first of all, installation (installing the app is simple, but how can I get an install program to put the database on the server?), and next, concurrency errors?
I understand that having more than one person trying to update the database at the same time is likely to cause concurrency errors, but short of deploying my application and having everyone try to write to the database at once, I'm not sure how to approach this.
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Oct 27, 2010
I need some advice here, i have several little applications that i want to be small modules (don't know if it's the right name), in one Main application.I know that i can do this in several ways (add the code, call the exe), but i was looking to guidance for the best way / pro way.
I was thinking in creating DLLs for each one, and after putting the DLLs in one folder inside my Main Application instalation, it recognizes all the DLLs in that folder and create the appropriated menu for the DLL with the options defined inside. Kind off add-in, this may help me in the future if i need/want to add other apps/DLLs.I already seen something like this in the web, but i don't remember where or what should i write in the google to get what i want...
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Apr 4, 2012
i have a form where i wanted to open multiple socket connects to multiple servers. i defined "clientsocket" as a socket array
[Code]...
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Mar 31, 2010
So I have a little gui that will read a given spreadsheet and list all the "valid" sheets. This happens when a user presses a button.[code]...
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Jul 24, 2010
I have an external (3rd party) EXE which I start from my app, which reads data from the user and creates a corresponding registry key with the information, then exits. I then need to read those registry values from my main application.
I start the app with:
Process.Start(My.Computer.FileSystem.SpecialDirectories.Temp & "GatherInfo.exe")
I need to read those registry values AFTER that EXE has quit - so I know they've been created. At the moment I'm just making my main app sleep after that process has been started:
System.Threading.Thread.Sleep(1000)
And then checking for the reg values. I'm worried this won't work for different users however, as the speed of the computer will determine how long the process takes to start and exit.
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Jan 31, 2011
So i am writing something for work, and i was roaming the internet to see how to do it in vb.net, but it seems to really not have many hits. vb.net doesnt recognize Declare and all information points to things that say Private Declare Function [info]What i was wanting to do is to check if a computer has a DSN card in system DSN's, if it has it use the information and connect, otherwise, quit the program.
Do you know where i can find how to do this? I just need to check for the existance, i dont need to make them.All of my search results, while seemingly useful, were not written for vb.net I want to get something up here specifically for vb.net so we can get more search hits. i find more information, i will post it, but it doesnt seem to be going too far in the vb.net department, as it is in .net
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Nov 13, 2009
I'm trying to create an excel file and load headers into the first row and then save the file to the local computer for later use. All of that works fine, but for some reason the "EXCEL" process won't quit. I have read through the tutorial written by Mike R and I have even tried just copying and pasting the code from the tutorial into my project, but to no avail. I should also note that I have not yet tried the "Extreme Measures" listed in the post, though at this point I am tempted to.
Code:
Dim ExcelApp As Excel.Application
Dim ExcelWorkBook As Excel.Workbook
[code]....
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Dec 23, 2011
I have a SSIS package that runs every 5min.My package has an error routine in the onError event handler but I don't want it to get in there.So in fact, the package should just exit / close / kill itself without any warning or error.Preferably this should be initiated by the script task (vb.net 2008)
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May 17, 2010
How I can quit the empty default text that appears in a comboBox when it is loaded?
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Jan 3, 2011
I got a form, another form, another form, another form, etc.And I got a quit form (Msgbox is not pretty)So, there starts a problem.I have two quit forms now, so that the user can pick the best one.The problem is that I don't know how the user can pick it. I have a quit button in Form3. I want SettingsForm have one label that says "Use the new quit dialog:" and two RadioButtons (which it has.) The Yes Radiobutton = Uses the new form, the no button uses the old one.Settings save the selection for the next session, etc.
RadioButton2 = Yes
RadioButton1 = No
Label = Use the new quit dialog
ButtonQuit = The Quit Button
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May 15, 2012
I have an application that can read certain types of files, and I have it working so that if you do "open with" from windows, it automatically starts the application and opens the selected file.
Unfortnately, I cannot get it to work for more than one file.
System.Environment.GetCommandLineArgs() contrains the following:
System.Environment.GetCommandLineArgs(0) = name and path to the .exe
System.Environment.GetCommandLineArgs(1) = name and path to the first file selected to be opened
System.Environment.GetCommandLineArgs().Length is 2 when the user tries to open 1 file, which makes sense since the first argument is the .exe itself and the 2nd is the path to the file, but it does not increase to 3 if the user tries to open 2 files... meaning that System.Environment.GetCommandLineArgs(2) is never populated Here is some sample code that shows the problem: It will recognize no files or 1 file being opened, but if you try to open multiple it will only show the first.
[Code]...
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Jul 31, 2009
This runs correctly, but Excel remains active after close.
If I don't create the range objects below, everything seems to work (with no output of course). Does anyone have any idea on how to keep Excel from staying in memory. Also... in the tests I'm running, I do not make the application visible.[code]...
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Sep 7, 2009
I want to store some information of the form in such a way that if the user quit/exit the application it stores the information. When user runs the application next time the information should be available to him. It also involve the restart of the computer. The application is in vb.net 3.5 framework. The one way that i can think of using flat files and encrypted data, but i can not do this. I do not to store any kind of data on client side and I can not store this information on server side. The problem is of getting client machine information and storing it on server.
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Jun 21, 2010
what WPF based apps are?Is it an application that runs under Silverlight? If so, how?I know; Windows Forms based apps,console apps,DLL _ Class Library Projectsand I've had an introduction to ASP.Net.What I mostly want to know is, if WPF apps are for Silverlight then do they also run in a server based fashion like anASP.NET website would when you create ASP.Net webpages?Is it a way of creating what looks like a FORMS BASED application but it runs in a browser instead or what?Please enlighten me a bit further as I have no idea what WPF is all about.
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Jun 22, 2010
what i did was i use a select statement in opening multiple IE just for testing but the main function is what you put number on a textbox then the number the IE's will open for example i put 100 on textbox then when i click a button then 100 IE's will open so if im going to use select statement when opening 100 IE my code will be crazy... heres my sample code..
[Code]...
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Sep 7, 2011
At my job, there are multiple web based tools we use. I'm trying to make a program that opens them all with one click, all in separate IE windows.
The code below, once executed, will produce 1 IE window. I'm pretty sure I understand why it's doing this, but not sure how to fix it. What I want is 3 IE windows open, at the respective sites.
VS 2008 & IE 8
Private Sub Button8_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button8.Click
OpenURL("http:www.google.com")
[Code]....
Also, the way my GUI's set up I have buttons for each individual tool, when clicked they open a new tab in the same IE window, as opposed to a new IE window.
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Oct 6, 2010
Basically, I'm trying to get a program to behave in the following way:First instance of the program opens up on PC1, opens a file for Read/Write access and then acts as the master program, doing a bunch of work on some other files I don't want a whole bunch of users accessing at once.Second instance of the program starts up, tries to open the file for Read/Write access, fails, enters Slave mode, opens the file for Read access, and periodically reads the status of the other files from this file.
That's the plan, anyway. If anyone can suggest a better way to handle the master/slave decision-making.Anyway, as a lead-up to implementation, I've got two instances of Visual Studio open. One is running a project called "GetFile", the other is running a project called "TryGetFile"."GetFile" has a Private myStream As IO.FileStream object and opens the test file using this line:
myStream = IO.File.Open("\[network path] est.txt", IO.FileMode.OpenOrCreate,
IO.FileAccess.ReadWrite, IO.FileShare.ReadWrite)
This works fine and, as far as I can tell, should leave this file accessible for further Read/Write access by any other process, which is fine for this stage of the testing."TryGetFile" also has a Private myStream As IO.FileStream object, but it attempts the following open code:
myStream = IO.File.Open("\[network path] est.txt", IO.FileMode.Open,
IO.FileAccess.Read, IO.FileShare.Read)
This doesn't work at all. I get an IOException, which reports that test.txt is opened by another process and I'm not allowed to play with it.Basically, I don't see what the problem is; I don't think "TryGetFile" is asking for any file access which "GetFile" forbids it from having. As far as I can see, "GetFile" shouldn't be forbidding any kind of access at all...
[code]....
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Apr 24, 2009
I have an application that has multiple forms. The "main" form within this application can be accessed from other forms. However, each time this "main" form is accessed throughout the application, a "new" instance is created, resulting in multiple instances of this form being open.
I would like to have "only" one instance of this form open at one time. If it is currently opened, I would like it to be brought to the forefront, instead of opening a new instance.
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Jan 24, 2010
I'm using this code to load multiple files using windows context menu, but the problem is that the aplication is open many times as files the user has selected.For example: If I select 14 files, an open them with the application, the aplicacion is opened 14 times and load the form only one. But there is a way to send all arguments once? Because %1 send only one file, or there is for example a %2 that send all file pats in one argument? If there is I'vent found.
This my actual code:
Public Class Program
Public Shared Sub Main()
Dim FurBase As New Core.clsDatabase
[code]....
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Jul 6, 2009
I am writing an application whose main purpose will be to collect user-entered data on a prescribed time interval (to be used by a dr. during anesthesia to collect patient vitals during surgery). I am attempting to accomplish this by having a form opened from the main window on every tick of a timer. The problem, is that if the user is a bit slow in entering the data on the first window, and the timer ticks again before they submit the first form, when the form is reopened (currently by simply using a show() command), the process of opening the form again simply overwrites the original form rather than creating a second instance.What is the best way to open a second (and possibly 3rd, 4th... nth) instance of the same form?
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Nov 5, 2010
Is there any way that I can tell if a second version of the same program is opened by the user.
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Aug 21, 2010
I've been trying to find a way to determine if I need to launch an application or maximize it because it is already running for the current user. The problem I am running in to is since I'm using the For Each command the application though it now knows to open the external .exe wants to open multiple since more than one instance of the application is running without the same SessionID.
VB.NET
Private Sub OrderLaunchOrSwitch()
Dim CurrentSessionID As Integer = Process.GetCurrentProcess.SessionId
Dim hwnd As IntPtr
[code]....
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Apr 11, 2012
I am new to vb.net. I have much experience using vb 6. What I am wanting to know is how to replace the file system object. Specificaly I am wanting to use textstream arrays. How would I write the following in vb.netFor simplicity reasons I am going with the assumptions that I have a text file that is 1 byte long and is just a repating series of #'s from 0 to 9. I want any record that has a 1 to go to tsout(1), 2 to tsout(2) ect...
dim fso as new filesystemobject, tsIN as textstream, tsOut(10) as textstream
dim lineIN, i
set tsin = fso.opentextfile("C:input.txt",forreading,false)
[code].....
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Jan 21, 2010
what i did was i use a select statement in opening multiple IE just for testing but the main function is what you put number on a textbox then the number the IE's will open for example i put 100 on textbox then when i click a button then 100 IE's will open so if im going to use select statement when opening 100 IE my code will be crazy...
Private Sub btnGenerate_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnGenerate.Click
Dim num As Double
Try
[code].....
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Mar 15, 2009
When I select multiple paths from openFileDialog in my listBox control enter only one path by try. This is probably because that I use OpenFileDialog.FileName. I wish to load all selected files in one time...but in this case Add(OpenFileDialog.FileNames) give me the value stringArray in same listBox. I suppose that maybe exict peace of code through ItemCollection which give me opportunity that I import all file path in one try in listBox control. It was interesting because how I may implementing matrix between openFileDialog and listBox..
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May 3, 2012
I have a tab-based application that handles multiple documents. It is designed such that the user cannot run multiple instances of application. Furthermore, the user can double-click on a document file, and the application will launch itself and open it.[code]...
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Aug 2, 2011
I've got an sql datareader that has a bunch of paths in it. I need to open up multiple pop up windows / multiple tabs on the browser.So I tried looping through my datareader and doing a ClientScript.RegisterStartupScript but after the code completes nothing opens up.
[Code]...
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