I wanted to know if anyone know how to lunch MS Excel application by clicking on a btn using vb.net coding? Im trying to open up and display (with the click of a btn) an excel workbook that has already been created
View 2 Replieshow to lunch MS Excel application by clicking on a btn using vb.net coding? Im trying to open up and display (with the click of a btn) an excel workbook that has already been created.
View 8 RepliesI've finally gotten it to occur reliably on a 26 MB binary, compressed executable. The failure is characterized by Filescan executing "somewhere else and I am unable to determine where. Roughly execution saturates the 2 processor Extreme before and after the failure. I have isolated the failure to between lines 278 and 280 above.Why does it fail? Is there any fast way I can insure that it does not occur? I see a Try-catch block as being slow.
View 7 RepliesI am writing a program that loops through all of the sheets in an Excel workbook and saves each sheet as its own workbook. It turned out to be a bit trickier than I expected, since the Sheet.Copy method creates a strange object (see here for the MSDN discussion that I believe is relevant: [URL]. Anyway, I found a Stack Overflow post [URL] that got me to where I am, which is essentially complete, outside of one hanging EXCEL.EXE process that is left after the program completes, which I believe is a result of the sheet.copy method creating a new workbook (potentially a new application as well?). The other thing I run into, which I believe is related to this, is that even though I have my application set to visibility off, when I run the program, excel still opens up and is visible going through the steps.
Here is my code:
Code:
Imports System.Data
Imports System.IO
Imports Microsoft.Office.Interop
[CODE]...
Now I think the problem comes from the end of the loop, where I try to close the export file and the new worksheet it creates:
Code:
'close excel and release com objects
System.Runtime.InteropServices.Marshal.ReleaseComObject(exportsheet)
exportsheet = Nothing
xlApp1.Workbooks(fileNames(counter - 1)).Close(False)
I can't figure out what to do to release the `ComObject` for the new worksheet that is created. I have been trying all sorts of things, but it always throws a COM error when I do it and if I try to define it as nothing (like I do with exportsheet) is says that it is read only by default, so I can't do it. It seems like it should be something as simple as: System.Runtime.InteropServices.Marshal.ReleaseComObject(xlApp1.Workboo ks(fileNames(counter - 1))) But that is not the case. I have tried a few variants of this and I am thinking it has to do with the MSDN link above, but I can't quite sort out what to do. So the code works for my purposes, outside of leaving one EXCEL.EXE after it is done. As far as a test file, I am just using an Excel file with 3 sheets and I put some information on each and change the sheet name, so it is easy to see if it is working or not.
I am writing a program that loops through all of the sheets in an Excel workbook and saves each sheet as its own workbook. It turned out to be a bit trickier than I expected, since the Sheet.Copy method creates a strange object (see here for the MSDN discussion that I believe is relevant: [URL]
Anyway, I found another Stack Overflow post that got me to where I am, which is essentially complete, outside of one hanging EXCEL.EXE process that is left after the program completes (check the update for one more issue that came up, but I think they are related).
Here is my code:
Imports System.Data
Imports System.IO
Imports Microsoft.Office.Interop
Imports Office = Microsoft.Office.Core
[Code]......
Final Update: On the off chance that some poor soul ran into the same issue I was running into, the first update should solve it, but it is also important to note that the excel.exe will hang until you close the application. I am report automation code as a windows form application (so coworkers can give the file location and such) and there is going to be an excel.exe process running until you close the pop up window from the program. Maybe garbage collect does not run until you close the application window or it just hangs on to an instance of excel.exe for some other reason.
The web on adding TOTAL time, not just 7pm + 6pm etc. Essentially what I'm trying to do is add total time + lunch time. For example, 30:00 (30 hours) + 01:00 (1 hour) = 31:00 (31 hours). The input method is textboxes, which I'm willing to change if there's a better way;
txtTotalHours = 30
txtTotalMins = 00
txtLunchHours = 01
txtLunchMins = 00
I guess what I'm looking for is to take these strings, convert them to TIME and add them together. Theres a bit more to my project, but I'm sure if I can get this method down, I can figure out the rest. I can do this very easily in excel using [HH]:mm formatting.
I have just bought a new PC which runs MS Office 2010 under Windows 7 and I purchased Visual Studio 2010 Professional. I have a program which was running successfully on an earlier version of Visual Studio running under Windows XP. I have been able to replace the 32 bit Custom Control and the program, which was compiled on the old PC, is running successfully on the new PC.
However, a part of the program transfers data to an Excel spread sheet and this does not work.Opening the project in Visual Studio I have found the error. There were some problems with XL Application and XL Constants, but I think I have worked around these.[code]...
Via VB.Net, is there any way to access the AutoSum feature that Excel has? I have a spreadsheet that I create and populate via a datatable using my application. I know how to sum based upon a predefined range (e.g., .cells(cnt + 1, 21).Formula = "=Sum(U3:U" & cnt & ")") but is there any way that I can just call a cell in my worksheet and have it AutoSum as if I was clicking the AutoSum button in Excel for that row? This would save me a lot of coding time based upon the logic my spreadsheet is going to need.
View 1 RepliesDoes anyone know on how to convert vb.net to excel. I am new in this company and they are using Microsoft SQL Server Management Studio for their database.
View 3 RepliesWhen I try to make a new workbook from excel it doesn't work and returning the following error[code]...
View 6 RepliesI have been trying to create a excel sheet as an output of my .exe but canīt doit.[code]...
View 3 RepliesI have Excel 2003 and 2007 loaded on my computer. When I open an Excel file, it is defaulting to 2003. How do I check to see what the default program is for opening xls files and change this to 2007 in my code? I have already done the following manually:
1-Open My Computer
2-Go to Tools --Folder options
3-Click the File Types tab
4-Scroll down to the XLS file type and highlight it
[code]....
However I am not convince that its defaulting to Excel 2007 when I run projects in VB as I am seeing the "File Conversion" prompt when file are open.
I'm using the excel object model (importing namespace Microsoft.Office.Interop.Excel) to open an Excel.Application object in my code, then open a workbook, worksheet, etc. What I'm doing is ridiculously simple: I'm opening two worksheet objects; one is already populated with data and another one is empty and is supposed to be populated with some rows from the first worksheet. If some conditions, regarding cells in the first worksheet, are not met, then I want to copy the entire row in the second worksheet, at the first available row. I have an integer counter, initialized at 1, which indexes the first empty row in the output worksheet this counter is obviously incremented every time I insert a row at outputSheet.Rows(counter).
Every solution I've Googled either uses VBA (I'm looking for a solution based on VB.NET) or is not compatible with .NET framework 3.5 (I'm receiving exceptions at runtime). I'm guessing I'm not using the Range object correctly or something; in any case, what's the simplest way to do this? I really don't want to open an OLEDB connection to my excel file: this is too complicated for the simple row copying mechanism I'm trying to implement.[code]...
I have a server that exports a file to our server every wed and sat. The file is a .csv file, so I created a batch file to move that to a folder and rename it to .xls. My problem is that there are things on that excel file that that the dealership doesn't want, like a cost column and some other blank ones i need to delete. So I want to write a program that will read that file into the program, delete the columns, and then write it back to file. So when they go into the excel file those columns won't be there. So i have to do this to 3 different ones because there are 3 different dealerships. So far this is what I have. I would like to create this on a Console App, because I want to be able to just run this from the dos prompt, or I think I'm just going to have a schedule run it for me at a specific time on wed and sat. But this was created in the Forms App
This is what i have:
Imports System.Object
Imports Microsoft.Office.Interop
[code].....
My program was working fine. I have ther Excel program File.xls up on the desktop. I have Excel Object 12.0 in Add References checked. I just do not know what is wrong. Here is a code excerpt:
Dim xlApp As Microsoft.Office.Interop.Excel.ApplicationDim xlBook As Microsoft.Office.Interop.Excel.Workbook
Dim xlSheet As Microsoft.Office.Interop.Excel.Worksheet
xlApp = GetObject(, "Excel.Application")
xlBook = xlApp.Workbooks("File.xls")
xlSheet = xlBook.Worksheets(1)
[Code]...
I want to get data from excel sheet using visual basic.
View 9 RepliesI am trying to make a program that goes to an excel file, copies the given range and pastes (Values!!) to another excel file. I am doing it in a loop because information from 12 different files gotta be in this one workbook. this is what i got so far
For intCounter As Integer = 0 To 11
With appXL
.Visible = False
[Code]....
It does the job, but every time I close the Roll Up file it gives me an error "A formula in this worksheet contains one or more invalid references." I guess it is because it copies the formulas as well...
I have searched all the code here I can find. I have added a bunch of code that some said should fix the problem. but it persists.
Given the code below, I open a small .xml file and then try to save it as a .XLS file. Should work just fine. When I monitor Task manager, the instance of Excel shows up immediately. But despite all the code I have added, it still won't go away, even if I exit the application. And if I run the process twice, I get multiple copies of Excel in task manager.
If the instance of Excel in the task manager went away when I exited my app, I would assume that there was some reference that was instantiated (behind the scene maybe) that persists until then. But this is not the case.[code]...
I have an excel file,having lot or micros, connecting to database, doing some complex calculation..inshot that excel file is itself an application.
Now I want to open that excel in VB.net form, on button click. I prefer to open that excel in vb.net form itself having all the excel tool bar etc, If that is not possible then opening in separate window using excel will also solve my purpose (coz when we open in excel it self we will get all the toolbar option etc automatically)
What do you think is wrong with the commented line in my vb.net code below? it returns the error message "member not found".[code]...
View 1 RepliesI'm developing a new program to add rows to a spreadsheet using VB.NET on a Windows 7 64 bit computer with Office 2010 installed. I have done this many times in the past with slightly different setups with no problems. This program locks on: xlWorkBook = xlApp.Workbooks.Open(FullFileName)After several minutes HRESULT=0x80131c08.ErrorCode=0x0 appears
I have to idea why it locks. The XLS does exist in the folder.
[Code]...
I have a program that we converted to vs 2010. When then moved it to the users computer and they only have Excel 2003 on their station. How can we tell the excel reference to use 2003 (version 11) instead of 2007 (version 12). The program now is looking for 2007 version 12.
View 3 RepliesI need to open an excel file and run its macro from VB.
View 1 RepliesI have a little problem with a small application that uses an excel workbook, and i don't know what's the best way to handle this.In the past every computers here in the company had the same culture and the same office version/language.Now the company bought some new machines, that came with english version of the office (en-US). Now the program doesn't work, throwing the exception related with the assembly of the office.
I have two solutions to solve this, install the mui in all the computers, or the one that i want, adapt the application to work independent of the culture in the client machine.So how to accomplish this? Set the application culture to the same culture in the computer (i think this will not work, because the excel assembly that i ship with the application isn't the correct one for the client language it's the assembly of my machine language)... One copy for each language, once again it's not possible
I want to calculate the average value of excel table readings 1 hr once... how do i import the sheet and how do i calculate the avg in vb.net?
View 4 RepliesI am a newbie in the asp.net world.I have any asp.net application where I get data from a stored procedure in a datatable.I would like to populate the data in an HTML table and then export it to excel.
Unfortunately these have to be done the long winded way (each column individually), since the data is modified based on user login credentials, before it is exported to excel. [code]...
I'm a beginner in VB.NET and I use VB 2008 express edition. I was searching in Google for a tutorial on how to import data from an excell sheet into VB but i couldn't find anything and therefore I decided to ask for help here. Firtly, let me explain you my "problem". Let's say we have an excell sheet with a number in the A2 cell and another number in the B3 cell. I want to make a program in VB that makes calculations with the values in the A2 and B3 cell of the sheet. This is just an example though. Of course I want to do more copmlicate things than doing calculations between those 2 numbers..
View 4 RepliesI want to know what code should be used in order for me to import data from an excel file to dataset and then adding it to the database
View 7 RepliesI need to import data from Excel to Sql Server using ASP.NET.
View 4 RepliesI have a range of data that I want to replace with new data.So, I want to clear the old data and replace it with new data.But the formulas in the old data are also required to work on new data.[code]...
View 2 Replies