VS 2005 Excel Process Spawned From VB Will Not Go Away?
May 11, 2009
I'm using VB to create Excel templates and everything appeared to be working fine until I was stepping though some code today with my Task Manager open. I noticed that I had numerous instances of Excel open that should not be. This is the code that is being called to close the process:
[Code]...
When stepping through this code I am hitting the exception after the execution of the GC but the message box does not appear so the the using thinks that everything is fine. When I close my applicataion all of the Excel processes shown by the Task Manager close as well.
how to ensure that a process created via the diagnostics.process class goes away when my app does. My app starts two processes, one runs plink and one runs psftp. Due to reasons that I don't want to become the focus of this post it is possible that my app will shutdown in an ungraceful manner. When this happens the psftp process dissapears but the plink process remains left behind. See the code below for how I am creating these processes.
Code: Public Sub New() Try p = New Diagnostics.Process 'p.StartInfo.FileName() = "plink"
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 need to access the current instance of MS Excel. To do that, I wrote the following code:
Imports Excel = Microsoft.Office.Interop.Excel Imports System.Diagnostics Private _ExcelApp As Excel.Application
[Code].....
The code runs nice, but it has a problem: After the user close the Excel application (click button X - note: no other instance of Excel exists), if you open the Windows's task manager, its possible to see the process Excel.exe.
If I open and close the Excel application, there is no process Excel.exe, but if I run my code with the Excel application openned, after the user close the Excel application, the process Excel.exe isn't finished.
I have an issue using Process.MainWindowTitle,Process.MainWindowHandle on some older VB6 applications. After Process.Start I use Process.MainWindowTitle to display in a listbox. The MainWindowTitle returned is not the Window Title but in fact the Project name of the VB6 exe.? I also store the MainWindowHandle to use the ShowWindow and SetForeGroundWindow API's. It would appear that the ShowWindow API does not work, but the SetForegroundWindow does. ie: if the VB6 app is minimized, showwindow does not restore, if it is NOT minimized setforewgroundwindow sets it to the foreground. The exact same code does work correctly for any other .net exe or notepad, only on these vb6 programs I am having a problem.
When I load my solution and compile it after first starting the IDE, everything works as expected. After changing source and recompiling, I get the following compile error:
Error 11 Unable to copy file "objDebugCAMDRS.Library.dll" to "binCAMDRS.Library.dll". The process cannot access the file 'binCAMDRS.Library.dll' because it is being used by another process. CAMDRS.Library.
After closing Visual Studio 2005 and reopening the solution I can compile again successfully. This is an old solution that has been fine for a long time. I just recently changed computers and reinstalled everything.I am running win XP Pro sp2, Visual Studio 2005 sp1.
i m trying to get excel sheet-name of a excel file from vb.net 3.5 however it opens but excel.exe still remains in the process. How do i stop the process without killing the excel.exe from task manager?i realise new excel.application starts new process.i tried to use quit, close and dispose.....nothing worked
Below is my code
Dim sheetName As New Excel.XlSheetType Dim newExcell As New Excel.Application Dim newWorkBook As Excel.Workbook = app.Workbooks.Open(MyFileName)
[code]....
I cannot use kill because there are other excel application running, so how do i close this particular excel.exe from processor.
When I create an instance of an Excel Application class and then quit the app and release the object (like below) the EXCEL process is still running in the the task manager. I have built an algorithm to find the process id and kill the process through that but I shouldn't have to.
xlApp = New Excel.ApplicationClass 'do stuff with excel app class instance xlApp.Quit()
My understanding is that thread.join will suspend the execution of code on the calling thread until the spawned thread finishes or is aborted...
With that in mind, I tried this:
For i = 1 to 50 threads = New Thread(AddressOf test) threads.IsBackground = True threads.SetApartmentState(ApartmentState.STA)
[CODE]...
However, the rest of the code runs when the loop finishes, not waiting for all the spawned threads to finish. Since the rest of the code needs the threads to finish (otherwise the rest will error).
I'm calling the following method from a button click event to export a datatable to excel. After the export is completed, the excel application object is quit, released and assigned to nothing. But in reality it's not getting released and stays active unless the entire application is closed. So every time the button is clicked for export, a new excel application object keeps on running. How can I solve this?
The problem doesn't occur if two of the lines from the method below are not used. But I can't omit them as they are really needed. Check the * marked lines.
I created the class below to open and gather the names of worksheets in an excel file. It does as it should in opening the file and returning the names of the each individual worksheet. Unfortunatly, I'm unable to close the file. This keeps the Excel.exe process hanging. Even after I attempt to close it at the bottom of this class the process still hangs. I have to manually goto Windows Task Manager and kill the process before I can use the file again. Even if I exit out of the application it still is out there.
There to all gurus,I'm trying to build an Excel generation aplication using VS 2008 and Microsoft Excel 2003, but some how the Excel process that i create it's stuck in the computers memory, and it's only removed when I END the VB Application.
I'm calling the following method from a button click event to export a datatable to excel. After the export is completed, the excel application object is quit, released and assigned to nothing. But in reality it's not getting released and stays active unless the entire application is closed. So every time the button is clicked for export, a new excel application object keeps on running.The problem doesn't occur if two of the lines from the method below are not used. But I can't omit them as they are really needed. Check the * marked lines.[code]
I have written Code for Excel File Create via ASP.Net with VB Code, I want Kill the process Explictly..I already used GC.Collect(), But it takes more time.
I am deploying the batch process on a production server and need to have the excel libraries loaded. The process runs at 6am and creates an excel spreadsheet that is ftp'd elsewhere. Anyhow - I cannot seem to find a way to load the libraries I need without loading Office on the production server which for obvious reasons we do not want to do. So how do I deploy this application?
I am currently building a vb windows form application (.net 3.5 framework). For the next part of the application I want to be able to use an existing excel process which will have been checked out from sharepoint and manipulate the worksheet with my app.
I would like to learn, to view the excel file from our vb.net. When I try to display the Excel file through the process, suppose if there is no process for excell.exe, [means not opened any excel file or excel.exe is not running in task manager] then that file can be viewable smoothly from following code.
But supoose previously any excel file is opened means, then its giving error like "Object reference Not set to an instance, use New Key word....." Also when i try to kill the process for excel.exe, it will kill the other opened excel files also. [code...]
I'm trying to kill excel process opened by my tool.I found following working
Declare Function FindWindow Lib "user32" Alias "FindWindowA" (ByVal lpClassName As String, ByVal lpWindowName As String) As Int32 Declare Function PostMessage Lib "user32" Alias "PostMessageA" (ByVal hwnd As Int32, ByVal wMsg As Int32, ByVal wParam As Int32, ByVal lParam As Int32) As Int32
[code]....
Anyway I would like to close ONLY EXCEL process opened by my tool and I don't want close other EXCEL files opened before tool.
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
I got exactly the same situation as the following link. I need to end the excel process after calling it in Visual Basic. But it did not and I have to use task manager to kill EXCEL process manually.
[URL]
I have been trying the same solution mentioned in the above link but not successful. Can any body to take the code below to let me know what I am doing wrong?
Code:
Please use the CODE tags when posting code. Click on this post's quote button to see how.
I have one prob that i'm creating excel sheet runtime, loading data and printing excel sheet through my application. Actually it has 150 sheets to print.
i'm printing by using this code xla.Sheets.PrintOut(Copies:=1, Collate:=True)
To print 150 sheets , its taking around 17 min. so now the user is waiting until printing process finish(ie 17 min ) .
actually i don't want to make him wait, i want to execute this printing process in backgroud. so the user can work on other process in my app.
Im opening an excel document with vb.net and i dont want vb.net to close it but to release excel so that when the user closes excel it does not remain as a running process... which it currently is doing here is the code i was using
Okay so my program opens excel, reads a few cells, and closes excel. But, it does not fully close excel and after multiple runs, I have multiple EXCEL.EXE *32 in my process list. It also asks for a save when it's closing when there are no changes being made, is there any way to avoid this? And how do you get Excel to fully close?
[code...]
The program closes, without asking for a save, gets me the data I need, but remains in the process list. Using this for my Imports
This is simple to explain, i need to track the process id from the files I execute. So lets look at the code.For this example just create 2 files in the C: and call it 1.xlsx and 2.xlsxNow open the firts file ...
Dim objFileExecute As New System.Diagnostics.Process objFileExecute = Process.Start("C:1.xlsx") MsgBox(objFileExecute.Id)
In the code below, I open excel file, when I try to enter some values into excel cells, and close it afterwards. For some reasons excel process is still active in task manager. I am releasing objects, quiting application like for other excel files in my program, but in this specific example can't do this. The code below is written in Visual Studio 2010, windows 7.
Imports Microsoft.Office.Interop Public Class Form1 Public MainPath As String = System.IO.Directory.GetCurrentDirectory() Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click [Code] .....
Issue: The .xls file has about 800 records but it's only importing about 480 records. I step through each row and find out that some rows have null values.After spending some time I believe I figured out why this is happening. My first field is a SKU value. The first x rows have all numeric values. Then it gets to a SKU like '1234-SE' and this row doesn't have data. So it's like it takes on the field type of the first data type.Question: Is there a way to order the data before I populate the dataset? I tried to do an order by but didn't work.My current code that is not working as I want.**NOTE: I have tried 'ORDER BY SKU ASC' and didn't work as well.
Sub FillDataSet(ByVal sFile As String, ByVal sTab As String) Dim containsHDR As String = "Yes" 'Change to "No" if it doesn't Dim strConn As String = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source='" & _
