Office Automation :: How To Control Running Excel Instance

Aug 19, 2011

I try to develop a automation-add-in for Excel which can get some data from our SQL DB. So i call my add from an Excel-cell.. like "=getThisFromDb()"... This works totally fine! But what if i want to write to another cell then just give a return value? I managed to get the running instance of excel. I can read from it. I can open a new document in it and write to it. ->> But can't write to the Worksheet that called me!!

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Office Automation :: Excel 2007 Collapses When Running With A COMAddin?

Aug 24, 2009

I have an issue which has successfully busted my head all weekend. I created a COMAdd-in, in VB.NET (VS 2008) for Excel 2003. We now need to work the solution out for 2007 and since the layout and objects are a little different we had to make some critical Interface changes.Instead of a floating CommandBar we are now going with RibbonBar, which looks good but it doesn't work. Whenever I open Excel Workbook (which is the primary application). The Add-in successfully recognizes it and opens it up properly (bunch of Macro calls, layout settings etc). Anyway, after it opens, if I click on any button (on the new ribbon tab) I get "Application not properly initialize. Program will now close" and excel object is lost.

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Office Automation :: Excel Process Continues Running (.Net Framework 3.5, VS.Net 2008, .Net 2008)

Apr 15, 2011

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:
''' <summary>
''' Exports data from a datatable to excel.
''' </summary>

[code]....

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Office Automation :: Excel Automation - Cannot Use Office PIAs

Feb 14, 2009

It appears that when one creates an instance of Excel, using CreateObject, (Late binding), the suggested Excel closing function (with GC.collect etc) does not work. I have tried several suggestions, and the only one that works is process.kill method. Do you see any problem in using this? BTW: the reason we are using late binding is that we cannot use Office PIAs....not sure which version of Office would be installed on the client site. We work with O2003, but the client might still be at 2000 or 2002.

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Office Automation :: Automatic Deployment Of Excel Automation Addin?

Jan 25, 2011

I have written an automation addin in Excel with C# (addin.dll). To use the addin, I need to 1. register it using "regasm /codebase c:...addin.dll"2. select in ExcelOptionsAddInsExcel AddinsAutomation the respective addin from the list

I would like to automatize 1) and 2), so that the user just needs to run an exe-file in order to use the addin. 1) should be no problem, but how can one automatize 2)?

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Office Automation :: Excel 2003 Automation With VB 2005 Express?

Apr 20, 2010

Ok basically what I need to do is the following:Read FirstExcelDoc (attached)For every row in that: Retrieve data from sql server db based on info in the Orange columns of FirstExcelDoc Let's say I retrieved data elements A, B, C, D, and E from sql server. Then I need to enter those same data elements A, B, and C in another excel spreadsheet (which has formulas etc) After inputing A, B, and C in that spreadsheet, read a couple of calculated fields and compare those results to data elements D and E retrieved originally from SQL Server DB. Finally, output the results in the Blue columns of the FirstExcelDoc spreadsheet for that row.Loop through and do the same thing for row 2 of the FirstExcelDoc and keep on until you see "END TEST" in the FirstExcelDoc.

I'm looking for a method of doing this efficiently. I have read several articles over the past few days as well as those from Mike R. but just need some direction to get started on this.To start of I'm looking for whether to read the entire FirstExcelDoc spreadsheet or just read the info for first policy number(2nd row) and process it and write out the blue column info for that row and then loop through and come back and read the second policy number (3rd row) etc... Please attach a code snippet for either way of reading the data.

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Office Automation :: Orphan Excel Process Started Via Automation

Jun 17, 2009

I'm using excel via interop in application.Sometimes users kill application that created excel instance and that results in excel instance sitting in memory without any chance of disposing it.First I tried to tackle this using ROT(running object table) looks like not all instances of excel are registered there.Than I tried to somehow mark excel process after it is started via interop.[code]This works as long as excel is visible but in my case excel window is invisible.All I need is to somehow mark process that started via automation with the parent PID, so that later I can kill it if parent does not exist.

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Office Automation :: Excel Automation - Call Rejected

Dec 17, 2010

I have been pulling my hair out trying to fix this.

[Code]....

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Office Automation :: Excel Automation Causing: Rpc_e_serverfault

Jun 1, 2010

We have a vb program which is run on our server by scheduled task every day. The program opens about 30 excel files, refreshes the data connections, pivot tables and then saves the document in another location.

This may run fine for a couple days but sooner or later the process starts crashing, usually with this error: RPC_E_SERVERFAULT.

My question is, Is it expected that continually opening/closing/refreshing workbooks will inevitably cause the Excel object to crash at some point.

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Office Automation :: MultiThreading In MS Office 2007 (Excel, Outlook, Etc)?

Mar 28, 2011

i was wondering if someone could give me the final explanation on what i might be doing wrong here.I spent a lot of time reading around the net and the forum about how to add Threading capabilities to a VB project.

Nos, i've got .NET 4 installed, and i've added the system.tsr and mscorlib.dll files as reference in, say, Excel 2007 (see screenshot).However, when i try to make a thread with anything as basic as "Dim Thread1 As System.Threading.Thread", i get a user-defined type not found error.Indeed, when i use the object browser to see what's in the System file, theres nothing remotely linked to any Threading, and in the mscorlib file, nothing under "Threading" either, just a few Thread related functions, but nothing defining a data type

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Office Automation :: .net Automation Excel App Not Closing

Sep 25, 2009

I'm having an issue where my excel.exe process doesn't close until I close my .net application. I'd like to avoid using Process.Kill() if at all possible.

Code:

Private Sub WriteRowsToXls(ByVal rows As DataRowCollection, ByVal xlsPath As String, ByVal showStatus As Boolean, Optional ByVal AddTotals As Boolean = True)
Dim xlsApp As New Microsoft.Office.Interop.Excel.Application

[CODE]............

This method references a couple of other methods I use for repeated formatting tasks, I'll include those methods below. (I added the FinalReleaseComObject into the other methods after reading Mike's thread but the issue persists)

Code:
Private Sub SetRangeValidation(ByVal rng As Range)
With rng.Validation
.Delete()

[CODE]..............

Method SetRangeAllBorders does about the same as these other methods but my post is too long to add it. The only other things not shown in these code snippets are a few string variable that are defined in the class, studentWS, studentsWSPW, paymentsWS and paymentsWSPW My App creates an instance of the class, loads some data, runs the method above, and then sets the class to nothing. I'm using .NET 3.5 automating Excel 10

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Office Automation :: Automation Excel Without Install Excel

May 28, 2009

I am developing an application using excel automation.The worst thing is the client's side doesn't have excel installed.What is the solution for this case?

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Office Automation :: Getting Word Instance And Creating Commandbars?

May 19, 2009

I'm working on and add-in for Word 2003 that creates a custom toolbar when the add-in is loaded. However, most of the users will open documents through a file management system that uses automation to open the documents. I tried using the GetObject function to grab the instance of Word created through the automation but the toolbar isn't made visible (it only sits in the background and the users have to manually make the toolbar visible).

Code:
Public Sub createToolbar()
On Error GoTo ErrorLocator

[code]......

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Office Automation :: Excel File - Set A Reference To The Microsoft Excel 12.0 Object Library

Oct 6, 2009

I'm trying to upgrade a VB6 app to VB 2008. I have read the article in the tutors corner about automating Excel from VB but I cannot get it to work. Heres what I have done:

1) set a reference to the Microsoft Excel 12.0 Object Library

2) Added "Imports Excel = Microsoft.Office.Interop.Excel" to the top of the module

3) in a routine I have added: Dim X As New Excel.Application Here's where I get an error: Error 75 'Application' is ambiguous in the namespace 'Microsoft.Office.Interop.Excel'.

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Office Automation :: Excel Program Leaves EXCEL.EXE Floating After Completion

Feb 24, 2012

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 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.

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Office Automation :: Code Hangs When An Excel File Is Opened To A Excel Workbook Object?

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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Office Automation :: Error With Excel Dll On Server Without Excel?

Jun 15, 2011

We have a VB 2005 program that reads data from a database and builds an Excel output file to be emailed. This works fine from my computer but when we put it on the server it fails on the Excel functionality.

The error is: Unhandled Exception: System.Runtim.InteropServices.COMException

Although Excel is not installed on the server we did also build a Setup program to install our program. It copies the Microsoft.Office.Interop.Excell.dll to the server folder with the exe.I thought the setup program should register the Excel DLL and the program should work even if the server does not have Office or Excel installed.

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Office Automation :: Outlook - Application Running Multiple Threads

Apr 15, 2009

I have an application, running multiple threads, and in many of these threads, Outlook is being called, some mails read, attachments downloaded, and then the outlook instance closed. But it is possible that there are a number of threads trying to do the same thing at the same time. There is of course a lock at the beginning and end of the process, so that no two threads try to access the outlook application at the same time.

"Sometimes" i get an error message : Creating an instance of the COM component with CLSID {0006F03A-0000-0000-C000-000000000046} from the IClassFactory failed due to the following error: 80010108

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Office Automation Using Excel And .Net?

Aug 7, 2009

when the worksheet is built i get the error message "Object reference not set to an instance of an object.".Here is my code:

Code:

Dim myXLApp As Excel.Application
Dim myXLWbs As Excel.Workbook
Dim myXLSht As Excel.Worksheet

[code]....

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Office Automation :: Add A Combobox To Excel

Jun 19, 2012

I am creating a new software with visual studio 2010 using the program language visual basic .NET, well in that software I create a new file in excel 2007, my question is because I do not know how I can create a combobox with data of my database inside, [code]

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Office Automation :: Closing Excel.EXE From App?

Jun 9, 2010

I work for a financial firm doing vb.net work.I open an excel doc and populate it using calls to range...i however dont dim the range...I call xlsSheet.Range.ValueI have about 30 ranges i update in this method before printingdo i need to set the .Range.Value to Nothing in order to close the excel.exe

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Office Automation :: Connecting To Excel Via ADO

Dec 1, 2009

When connecting, I am getting the error 'Provider is not specified and there is no designated default provider.'[code]

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Office Automation :: Excel .NET Interaction Via DLL?

Dec 7, 2010

I would like to keep part of an Excel workbook open to the user (including some VBA code) while protecting other code. What I hope to accomplish is to rewrite some of my code from Excel VBA in VB.Net and compile it into a DLL which I can then call from Excel VBA. I want end users to be able to modify most of the code in the module, but some of the process should never be touched. Say I have an array in VBA

ArrONE(1 to n, 1 to n)

I would like to pass this through into a DLL and return a new array back to VBA:

ArrTWO(1 to n, 1 to n)

1) What are the best resources for VB.Net?

2) What are some main differences between VBA and VB.Net code

3) I have read that VB.Net doesn�t handle Variant data types, which (as far as I know) is a requirement to perform matrix multiplication in Excel VBA. Any detail on this issue would be of use.

4) VB.Net test environment? I often use msgboxes or simple subs printing to a spreadsheet to test my code in Excel VBA as I go to make sure everything I code is working properly before advancing. What would be .NET equivalents.

5) How to compile VB.Net into a DLL

6) How to call a DLL from Excel VBA

7) What effect will this have on the speed of my procedure?

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Office Automation :: Write To New Excel Row?

Sep 10, 2009

I am trying to write data to an excel spreadsheet. Simply just todays date and the value of textbox1. I can successfully write it to excel, but how do I get it so each time the application runs it writes the data to the next available row?? I know there must be some loop involved but am having trouble with the coding..

this is what I have so far.

Code:
Imports Microsoft.Office.Interop
Imports System.IO
Imports Excel

[Code].....

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Office Automation Saving To Excel

Mar 10, 2010

The following code is working with two exceptions: The ** are lines were a message box will appear saying that "book2.xls is already present. Do you want to save as? " I am not sure how to fix this. I would be interested to know if I am missing something or if there is a better way.[code]

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Office Automation - Excel Range References

Apr 22, 2010

I want to define a range in Excel, but I do NOT want to use "A" or "D" references for columns. I am making a table, and to set it's range I use:
Code:
.Range("A1:D4")

However, at the time i write the code I do not know how many columns will be involved, so I don't know if "D" is the end column. For rows this is fine, as i could write this:
Code:
.Range("A" & i & ":D" & j)

But how do I do this for columns? I really would rather not have to convert my integer number for the end column to text. If I know that the table should go from row 1 to 5 and column 1 to 10, how to I select this range?

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Office Automation :: .NET Add-in Does Not Work With Excel 2002

Jan 22, 2009

I have created a C# .Net DLL add-in for Excel.When I try it on my home machine with WinXP and OfficeXP 2003 it works as expected. When I try it on a couple of machines at work with WinXP and OfficeXP2002 it does not work.I have spent 2 days solid reading up on this subject in general and I still cannot get to the bottom of the problem. As far as I can work out what I am trying to do should work with Excel 2002.

Some details:

- I am using Visual Studio EXPRESS 2008 (C#).

- The assembly is signed with a Strong Name Key File.

- I have installed the OfficeXP (2002) PIAs.

- I have created a class DLL in accordance with many MSDN and other internet posts.

- I have registered the DLL using RegAsm.exe and GACUtil.exe.

- I have added registry entries for Excel for CURRENT_USER so Excel should know about the DLL.

The DLL adds some Automation functions (Tools-Addins-Automation) which can be accessed in cells within Excel (for example you would enter =MultiplyFirstBySecond(2, 3) in a cell and get a result of 6) and also implements the IDTExtensibility2 methods so that when Excel is opened it creates a button on the toolbar which when pressed pops up a message box. It it this functionality (adding buttons with code behind them) that I want to expand on.I have attached the zips of the batch and registry files I have created to register the DLL in the GAC and in the registry. I have also attached a zip of the complete project. I would like to know if there is anything I should check with my machine's setup or my project or my registration/installation of DLLs, PIAs etc in order to make my DLL work on my Excel 2002 machine.

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Office Automation :: Custom Color In Excel?

Aug 17, 2009

my program lets people pick their color to highlight different shifts.after data manipulation they can export the shifts to Excel.I want Excel to show up the same colors as the users picked so I know I need to add them to the workbook palette.the first color I import works fine but after that, all the colors get jumbled and messed up and put in random spots in the palette

WorkBook.Colors(paletteIndex) = RGB(dColor.R, dColor.G, dColor.B)

leads to

Excel.Cells(i, j).Interior.ColorIndex = paletteIndex

something must be wrong in these two lines. I get no errors, just the wrong set of colors.

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Office Automation :: Error Opening Excel In A Dll?

Apr 25, 2012

We have created a dll to convert an excel spreadsheet to a csv file. At the moment we open the xls file, an eror occured (file doesn't exist / is used by an other user)

Used code:
Dim excel As New Microsoft.Office.Interop.Excel.Application
Dim wb = excel.Workbooks.Open("d:my.xls") '<<<<<<<<<<< not possible to open
wb.SaveAs("d:my.csv", Microsoft.Office.Interop.Excel.XlFileFormat.xlTextMSDOS)
wb.Close(SaveChanges:=False)

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Office Automation :: Excel - For Next Through Selected Cells?

Jun 21, 2011

I've an excel sheet which is populated with thousands of rows of data, is there a way in vb.net I can pick out only selected cells/rows without having to go through every row?

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Office Automation :: Excel Import CSV File

Oct 19, 2009

How do I import data in Excel from a CSV file using C#? Actually, what I want to achieve is similar to what we do in Excel, you go to the Data tab and then select From Text option and then use the Text to columns option and select CSV and it does the magic, and all that stuff. I want to automate it.

[Code]...

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Office Automation :: Excel Process Will Not Terminate

Sep 2, 2010

Excel process will not terminate...
Code:
oExcel = CreateObject("Excel.Application")
oBooks = oExcel.Workbooks
oBook = oBooks.Open(Filename:="C:Jared FC Project Desktopfixture tracking.xls", UpdateLinks:=False, ReadOnly:=False)
oSheet = oBook.Worksheets(1)
[Code] .....

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Office Automation :: Excel Process Won't Quit?

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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Office Automation :: Excel Range Into A .NET Array?

Jan 10, 2011

I have formulas in certain cells and happens to be part of the Excel range that I pull into a vb.net array and when I write the array back out to the Excel Range, I loose all the formulas in it.Is there an option to retain formulas in a .net array?

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Office Automation :: Excel Selection And Sort?

Apr 28, 2009

I am using VB.net.I am importing a text file into Excel. Then I want to select everything and sort it based on a cell (A) in this case. So here is what I have so far.

Code:
xlApp.Workbooks.OpenText(sDump, , 1, , XlTextQualifier.xlTextQualifierDoubleQuote, , , , True)
xlSheetData = xlApp.ActiveSheet
rng = xlSheetData.UsedRange
rng.Sort(rng.Range("A2"), XlSortOrder.xlAscending)

It works but the problem is the direction that the sort is happening. Everything is being sorted horizontally. I want to Sort it by the selected Column.

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Office Automation :: Execute An .exe (another Program) From Excel?

Feb 11, 2011

trying to execute an .exe (another program) from excel, where shall i start?

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Office Automation :: Exporting Data To Excel

Feb 16, 2010

I've made an application, that allows to export some data to an exisiting excel-file. Everything works fine on my system, but not on other OS where Visual Studio is not installed. The xls file is simply not being edited at all.[code]

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Office Automation :: Move From One Excel Sheet To Another?

Jan 8, 2010

I am trying to move from one Excel sheet to another in VB.Net 2008.

My code is as follows:

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
'Dim oXL As Excel.Application

[Code].....

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Office Automation :: Open A Excel From VB2008

Apr 20, 2010

I am trying to open a existing excel file from VB 2008

I am doing next:

Dim ObjExcel As EXCEL.Application
ObjExcel = CreateObject ("Excel.Application")
objexcel.Workbooks.Open Path

I get and error saying that is old format or invalid type library

how to open an existing excel file from VB 2008.

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Office Automation :: Opening A New Excel Application?

Jul 30, 2009

I know how to program this task easily using vb.net, only because i had to do a similar task a few seasons ago. However, when I confronted this task last week my previous solution did not work.Here is my code.Code:'using VS 2005 so i added the COM reference: Microsoft Excel 10.0 Object LibraryDim xlApp As Excel.ApplicationDim xlWorkBook As New Excel. the .Net Office Automation forum

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Office Automation :: Paste Text Into Excel?

Mar 29, 2009

I am having a hard time find out a way to paste the content from a text file into excel.I am able to read the entire content from a text file and put it into a string. After retrieving the info from the text file,I would like to open an excel template and paste the text file content into the excel sheet.

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Office Automation :: Ping IP Address In Excel?

Apr 13, 2011

I am looking for a VB script that will test connectivity on an appliance IP and Gateway IP.I have an excel spreadsheet that consists of three columns (Location, Appliance IP, Gateway IP). What I am looking for is the ability to double-click on the Location cell and have the Appliance IP and Gateway IP pinged with the backgrounds of these cells changing from no fill to red/green depending upon the ping result

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Office Automation :: Read An Excel Cell Value?

Aug 17, 2009

[URL]

I am not sure I should be asking a question like this. But while going thru the thread I could understand assigning values from Excel cell when you know cells address. I am trying to find out syntax for activecell, activecell. row, activecell. offset etc.

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Office Automation :: Read Excel Using ADO In .NET 2005?

Apr 27, 2009

I am trying to read data off an excel file, using ADO and everything works fine ....EXCEPT:I get an error opening some files, if they are not open otherwise. The error is - "External table is not in the expected format". But if the same file is already open, then I do not get any error, and everything works fine.

If I copy paste the contents of the same file into a new file, and save it under a new name, I still get the error.Something strange I have noticed with this file is that if I open this file and try to close it, without making any changes, it still asks me if I want to save the changes.This is a file I get from an external source, so I have no control over the contents/format etc.The following code gives a part where I try to read all the sheet names in the file.

[Code]...

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Office Automation :: Terminate Excel Process In VB

Dec 19, 2010

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.

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