Too Many Excel.exe Tasks Are Opened?
Jan 14, 2011
I have the code below:
Dim i As Integer
Dim objExcel As New Excel.Application
Dim objWorkbook As Excel.Workbook
objExcel.Workbooks.Add()
[code]....
At the end of this routine, eventhough the data was correctly saved to my Data.xlsx file, this routine also opened 15 EXCEL.EXE tasks in task manager.I thought that I had cleaned up before quitting. By the way, whether I write to 1 or 5 or 10 cells in Data.xlsx, 15 EXCEL.EXE tasks would be opened regardless.Is there a way to (easily and) completely close all EXCEL.EXE in task manager before leaving my application?
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Aug 3, 2009
I use the following code snippet
Dim exlapp As New Microsoft.Office.Interop.Excel.Application
Dim xlWorkBook_new As Microsoft.Office.Interop.Excel.Workbook
Dim strOriginal As String
strOriginal = Server.MapPath(Request.ApplicationPath & "/Attachments/") & "abc.xls"
xlWorkBook_new = exlapp.Workbooks.Open(strOriginal)
The code hangs in the last line. It works fine in the development environment. i deployed in windows server 2000 ,where I get this issue. the browser goes half way and throws the below exception after some time
[Code]...
I have set the identity impersonate to true in web config. This should be mostly an access rights issue.I have even provided access rights for the "everyone " user in the excel file and as well for the interop component. Please post ur valuable comments.
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Mar 19, 2010
Ineed a VBS script that removes all scheduled tasks which start with a specific string.
For example, delete all scheduled tasks which start with "My Application Tasks..."
I wanna use this VBS script in my application uninstaller so all tasks created by my application are removed at the uninstall time, however am not familiar with VBS.
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May 26, 2010
I'm exporting my Dataset to an excel file, and I want to make sure I keep any file errors under control. One in particular that I'm concerned about is accessing a file that's already open. A general IOException occurs that says:
"The process cannot access the file 'C:Reports eport300.csv' because it is being used by another process."
Here is the line in which the error will occur:
Dim output As New IO.StreamWriter(path, False, UnicodeEncoding.Default)
I guess I could just throw a try catch around it, but what if an IOException happens that isnt related to this particular incident? Is there a way I can check to see if the file is already open before allowing this code to run? Especially when I'm using excel.
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Mar 7, 2011
The problem I have is that I have a 3rd party add-in working in excel to convert certain info into a barcode.
When I open excel normally, the add in works without a problem, but when I open it through excel it just doesnt work until I manually go into the add-in option, disable the add-in and the reenable it.
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Sep 28, 2009
I need some code which checks if excel is open or not, if excel is not open then opens it (that code is fine)
else try to write some content/cellvalues to the already opened excel, basically I am creating windows application, which has been scheduled to run numbers of time in a day, when ever application executed, the application has something to write to the excel. one more thing is i don't want excel to save and close every time i execute the application, Its like transparent processing of EXCEL writing, a file is already opened, just write some content, and after writing it exit the application without either closing or saving the excel
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Apr 26, 2012
My program opens 4 excel spreadsheets updating info. I update one at a time and then close it before opening the next one.I want to add code to my program to test if the file is already open, before trying to open it. Occasionally someone will have one of the files opened and it causes a crash. If I test to ensure it is not open, then I can avoid this.
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Apr 28, 2009
I need code to save the opened excel book (save as) and close it.
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Apr 28, 2009
I want to save the opened excel book and close it. My code is given below but i found errors in that code .
xlBook.SaveAs (strTargetFile)
xlBook.Saved = True
xlBook.Close
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Jun 21, 2010
What I wanted to do is close all opened workbooks. This code does the work IF there is at least one or more opened workbooks. My problem is IF there is NO opened workbook at all; It goes around unendlessly in the WHILE Loop. How do I not process the closing IF there is no any opened workbook at all? (NOTE: I found this code from somewhere else.)
[Code]...
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May 4, 2012
I will know how do I work with the opened excel instance, when I use multiple userforms. I have on my form1_load open a excel file. Then I observed that on my next userform, was unable to write to that file again. Project have no instance of APP.workbook.
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Feb 15, 2011
I developing an application that downloads some reports from a external ASP web app. I use the control webbrowser to navigate through the pages, generates and download the reports. The URL are in an array ArrURL and I have 2 situacions:[code]
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Aug 24, 2009
I need to:
1) Read a CSV file,
2) Put the data in a list object that I can sort,
3) and populate a few GridView controls on a form,
4) Write my sorted list to an excel file, which I've never done.
I'd like to create a formatted summary table that would look organized when opened in Excel. Who is best person/ or place to ask about that?
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Aug 25, 2009
I using Microsof Visual Basic 2008 Express Edition. I need to create a form like: 2 buttons are open and save existing .xls file which each generation can choose a different.2 textbox that can be entered on the column
and last button to when choose two columns, to find duplicates values and mark different color same values. Is it possible?
At the moment Excel file opens, but the comparison does not require the introduction of the columns
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Jan 24, 2012
My program performs a bunch of task in a loop. After each task completed it saves log/status of task in a text file. The program runs fast but if there is more than 10,000 tasks it becomes slower and it takes a lot of CPU because of frequent I/O operation.
Is there a better way to save the log/status of task without making the program slower? At first i used a textbox control to store the log but the problem is textbox control can not hold a lot of text.
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Sep 23, 2010
how the threading within vb actually works. am i of the understanding that every time you create an event, through a button control for instance, that this infact creates a seperate process which will run independantly to another. say for instance you had two buttons on a form and each contained code which took 5 seconds to execute. if i were to click one button into action and then the other with a second, would the two processes run alongside one another or would i have to wait for the first code to execute before the second button could be executed?
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Sep 1, 2011
I am trying to create a vb application that will create sscheduled tasks .Created a windows service and set it to start manually for now.Just as a test, when the timer expires I have set it to start 'Notepad' as a process which I can see listed under processes in the Task Manager, but cannot see it as a scheduled task.What I am unsure whether this is the right way to create a scheduled task and if it why can't I see Notepad in scheduled tasks.
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Feb 2, 2011
Ineed a VBS script that removes all scheduled tasks which start with a specific string.For example, delete all scheduled tasks which start with "My Application Tasks..."I wanna use this VBS script in my application uninstaller so all tasks created by my application are removed at the uninstall time, however am not familiar with VBS.
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Apr 25, 2009
simple way of attaching a progress bar to the tasks of a button.When I press a button, several tasks will commence and I want a progress bar to show it's... well... progress.
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Jan 25, 2010
I am writing a VB.NET application that creates a new task item for another user. Is there a way of having this task go straight to their task list without having to open the acceptance email ? ( Would help if such an email is not sent in the first place to avoid cluttering)I found a similar post on experts-exchange forum, though no one was able to answer that till date.I assume that can be achieved using shared Task folder but could not get good examples on msdn to work with.
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May 13, 2010
I am building an application that will run through various tasks like database backup, zipping some other files and so on.I have the progress bar figured out for each individual task and I have all my tasks working.I am trying to build an interface to display to the user to show them the progress of the entire run.I was thinking like a list box or other object where I could put a green checkbox image or red x image as each tasks runs and is a success or failure.
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Sep 13, 2011
[code]i want some help on how to use the datagridview control to perfom tasks that i usually used to perfom using a datagrid control.i've put tha datagrid version of the code above. If you think it you can achieve it
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Mar 22, 2012
Is there a way to delete an specific scheduled task from Windows XP/W7 ? I am trying to do that via VB.NET. The Idea is create a console app without any external DLL.
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Jan 24, 2008
Main development XP machine died so I got a new XP machine, installed SQL Server 2005 and VS 2005 Pro, and copied my files.Projects in new VS 2005 work except the Data Sources pane won't refresh and won't show all my data sources for an existing project (from the old machine.)
Error: " An exception occurred while trying to update the data smart tasks, they will be disabled. Key not valid for use in specified state."Update: I cannot even add a new data source to a brand new project. This is VS 2005 from my MSDN subscription.
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Dec 11, 2009
How do I assign a priroity to a task for a resource and then sort within MS Project using VB.NET?
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Apr 22, 2009
trying to automate some manual tasks. The task to access a web page (asp) login and then get some details from the site. The challenge is that the home page after login is build of 3 frames. when i see the page view source from the edit menu all i see are frame names. Once i right click on each frame and view source i am able to see the complete source - variables javascript function etc. The following code helps me to navigate :
vb.net
Set ie = CreateObject("internetexplorer.Application")
Dim s As String[code]....
After this the page has been logged in. Now to proceed further i have to click a "image" object.
1) I tried qualifying the image like ie.Document..........item("img1").click this doesn't work
2) I tried calling the javascript function directly
ie.Document.all.Item("frame1").Document.parentwindow.execScript "JS_WGorUsers (funcname)", "javascript"
The 1st option gives a run time error and 2nd option says access denied. (if i login manually i am able to click the image.
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Aug 21, 2010
i have a trackbar that has 5 little lines and i want them to do different things
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Apr 27, 2010
I have a problem with ListView Group Tasks in Visual Basic.net. I've created a derived class from ListView wich have collapsible groups, and other features not included in common listviews. I use the LVN_LINKCLICK to catch the Task clic event, but when
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Apr 30, 2010
IS there any method to perform two different tasks in one click event Like By clicking OK button i can do
1- Instantiate a new form
2- Add somthing to listview or can do something else
But these tasks not to me simultaneous. One task at a time Actually these taks will be performed simultanously, but i want one task to be performed at a time, not both?
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Jan 22, 2012
I have a main(frmmenu.vb) form which is the mdi parent of other two forms (namely frmcandidatelist.vb and frmviewcandidate.vb)...........Two forms are displayed simultaneously on frmmenu each separated by split-container(frm-candidate-list.vb on left side and frm-view-candidate.vb on right side)
Frm-candidate-list.vb shows name-list of customers on a datagridview. While i click on a item from that list, details of the respective customers(like name,id,photo,address,etc) is displayed on the right side form(frm-view-candidate.vb).....
But there is a problem. Loading details of a customer takes time(since i have to connect from remote database)... So the whole program becomes hanged(like) till details are loaded.....
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