Impact On Computed Cols While Using Excel Automation?

Jun 15, 2010

I will be developing a Windows Application that will write data to an excel file.I would like to know if formulas used in the computed cols will still work on the new rows that I add or edit through program.

View 4 Replies


ADVERTISEMENT

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?

View 17 Replies

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)?

View 12 Replies

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.

View 19 Replies

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.

View 19 Replies

Office Automation :: Excel Automation - Call Rejected

Dec 17, 2010

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

[Code]....

View 1 Replies

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.

View 3 Replies

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

View 2 Replies

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'.

View 6 Replies

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.

View 1 Replies

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.

View 3 Replies

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.

View 3 Replies

Datagrid View Binding Swapping Cols/rows?

May 7, 2012

I have a client who needs a database to display products.He would like to have the product attributes in the rows headers and new records added to the columns. I have a collection of a class that would contain the products and am binding it as a data source. however all I can get is the attributes to show up in the columns and the records to show up in the rows.

[Code]...

View 1 Replies

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.

View 7 Replies

Excel Automation - How To Just Say No

Apr 15, 2009

I'm working on a vb.net console app that opens a number of spreadsheets one by one, reads in a couple cells and closes the file. Some of the spreadsheets have formulas that Excel recalculates when I open the file, and I'm getting a dialog box asking me if I want to save changes to the spreadsheet when I close it. Message: "Do you want to save the changes to myfile.xls? Microsoft Office Excel recalculates formulas when opening files last saved by an earlier version of Excel".

How do I automatically decline that dialog box?
Dim newCBD As New CBD
Dim xlApp As Excel.Application
Dim xlWorkBook As Excel.Workbook
Dim xlWorkSheet As Excel.Worksheet
[Code] .....

View 2 Replies

Excel Automation In VS2010?

Sep 9, 2011

I know that there are millions of posts about this already but I cant seem to find one that mirrors my issue. I am using VS2010 and want to automate excel and I'm trying to work through the example here.

MS Tutorial The problem is when I go to add the reference as mentioned 3.Add a reference to the Microsoft Excel Object Library. To do this, follow these steps: -On the Project menu, click Add Reference. -On the COM tab, locate Microsoft Excel Object Library, and click Select.There is no such reference available.

know if this is the right way to automate excel with VS2010.If it is could someone please let me know why I dont have the COM option for excel. im wanting to write in VB.net but if someone has an example in C# that would be fine. I have tried implementing automation using the Microsoft.Office.Interop.Excel.Application dll but i get the following exception when I try to create the excel application.

This line generates the error. EXL = New Microsoft.Office.Interop.Excel.Application()This is the exception

Retrieving the COM class factory for component with CLSID {00024500-0000-0000-C000-000000000046} failed due to the following error: 80040154 Class not registered (Exception from HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG))

View 1 Replies

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]....

View 1 Replies

VS 2005 Excel Automation?

Jan 29, 2010

I am trying to automate excel. And creating excel object as oExcel = CreateObject("Excel.Application") And trying to close/kill(Kill ) the Excel in Process window using

For Each P as Process In Process.GetProcessByName("Excel")
if p.MainWindowHandle.ToInt32 == oExcel )
p.kill
end if
Next
But the P.MainWindowHandle.ToInt32 is always 0

I have tried this one , Which works for simple methods and not for complex methods

View 17 Replies

Impact Of Selected Target Frameworks?

Jul 26, 2010

In Visual Studio i can select the target .net framework version, which for example defaults to 3.5. Now when i build my application with this setting, i guess it wont work on computers with .net framework 3.5 not installed, right?But lets say i choose .net framework 2.0 as target .net framework. Will my application work on computers that have .net 3.0 or .net 3.5 framework installed, but not 2.0?In other words: Is the .net framwork always backward-compatible?

View 1 Replies

Excel Automation - Adjust Size To 10%

Sep 21, 2011

I am having an issues with getting my page setup right. the code below makes excel go crazy and adjusts it to 10% of its normal size and basically every cell is a pagebreak. [Code] If i comment out the MARGIN changes it works fine and adjusts to about 58% of normal size, but i need to change the margin sizes or else it prints out a bit too small. any ideas?

View 1 Replies

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]

View 2 Replies

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

View 9 Replies

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]

View 4 Replies

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?

View 2 Replies

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].....

View 2 Replies

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]

View 7 Replies

Random ComException With Excel Automation?

Jun 16, 2011

I have done quite a bit of research on this issue and haven't came up with anything definitive yet. I am having issues with Excel randomly getting ComExceptions while writing out reports. I am using a Visual Basic 2005 (framework 2.0) console application to create these reports. The problem has been difficult to figure out because it occurs in random places while writing out reports so I can't catch the error to see the problem. I have looked through the differing items that it breaks on and there is nothing odd about them that would cause any of these problems.

[Code]...

View 1 Replies

Excel Automation - Machine Running Office2010?

Sep 8, 2010

my app interacts with excel. im running office2007 on my dev machine but the target machine running office2010.i had this problem before where i had to remove office12, install 11 and recompile the project to get it to work on the clients machine, adding multiple references didn't help. is there a work around, or a library that works with any excel version.

View 2 Replies

Excel Automation For Real-time Data

Jun 5, 2012

i have a program that function as a DAQ System.i have input channel to gather information from sensors. The reading of each sensor such as voltage, current and temperature are displayed in the textbook. As we all know, DAQ system is involve taking data real-time measurement.My problem is:

1. how to update each row automatically as time goes on. the value in the textbook is updated by each second.Below figure shows how the excel can be written automatically row by row, as time ticking for a sec. this update will stop as the timer stop.

View 12 Replies

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?

View 3 Replies







Copyrights 2005-15 www.BigResource.com, All rights reserved