Check For Opened Excel Workbook (if Any) Before Closing Using 2005

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.)

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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

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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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COMException (0x80010108 - RPC_E_DISCONNECTED) When Closing Excel.Workbook?

Mar 10, 2010

When I run the following code, I get the exception below:

''# NOTE: ExcelApp is a Private main form variable
Dim ReportBooks As Excel.Workbooks = ExcelApp.Workbooks
Dim ReportBook As Excel.Workbook = ReportBooks.Open(localFilename)

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Excel Workbook In A Webbrowser Does Not Prompt For Save On Closing Of Webbrowser

Oct 1, 2009

I am utilizing a webbrowser control in vb.net 2005 to display excel workbooks

We are using this control to open excel documents. Webbrowser.ShowSaveAsDialog() allows the user to save the excel workbook open at any location he wants

However, I don't want the user to decide where to save. Is there any way to save an excel document from the webbrowser control without going through the ShowSaveAsDialog?

On closing of webbrowser, a simple prompt to user whether he/she would like to save changes should be fine enough

As of now, I can close webbrowser control and it does not prompt the user to save the changes. Actually, all changes are lost until and unless I perform a save (Ctrl+S) manually

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Check If An Excel File Is Opened By Another User?

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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An Excel Workbook's Sheet Tabs Be Sorted Within The Workbook?

Jan 6, 2011

In building an Excel workbook with VB.Net, is it possible to sort all the worksheet tabs into a particular order? I'm building a workbook with individual sheets named by drive letter, i.e., "C Drive", "D Drive", etc.

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Closing A Database Connection Opened In Another Class?

Mar 30, 2010

I've got a fairly large VB.NET (3.5) project that makes a lot of database calls. So I created a namespace/class just to handle those fuctions. The idea was that this single point of entry into the database would give more control over validating input from users.

So my class looks something like this. (I've chopped some code out for readability, it works just fine except for all the open connections.

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So I can close the data reader, but how do I reach back to that original database class and close the connection. If I close it in that original class it will bomb when I try to loop through the data reader the in calling class.I'm sure this is probably pretty obvious but I'm fried from the keyboard.

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Closing Form After Large XML File Is Opened?

Oct 21, 2011

I'm working through an example in a programming book and stumbling across a problem that I can't seem to figure out. The program in question is basically a very basic 'level viewer' for a tile based bitmap game (its a game creation book). The source code from the author was written for Visual Studio 2005, and I am using 2010. The source code imports fine and the program runs correctly.

I built the same program on my own, starting from scratch in VS2010. The program works like this: It opens a tile set palette (bitmap form), then uses an XML file to create a 'level'. The XML file indicates which tile goes where on the 'level'. The XML file is roughly 1.9MB and has roughly16,000 entries (the program creates a level that is 4096 x 4096 pixels using 32 x 32 pixel tiles).

Running and closing the program from source code runs exactly as expected. Running the program from my version runs exactly as expected. Closing it does not. It basically hangs up for about 2 minutes on close. (for reference every loads in about 3 seconds). I've determined that it is the XML file that is causing the problem by excluding the portion where it loads the XML. In that case it closes fine. If I cut it down to just a few records, my program closes fine as well. So it seems like the program is having trouble dumping the XML document at close.

I've tried to track down any differences between the source code and my code, and the only thing that I have found is that the References in mine are all using .NET version 4.0 and the references in the source are using mostly 2.0 and some 3.5 (System.Data.DataSetExtensions, System.XML.Ling.dll, and System.Core.dll)

The code for the entire form is:

Imports System.Xml
Public Class Form1
Public Structure tilemapStruct

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Check If Workbook Is Open?

Feb 8, 2012

I have got problem, I got function which should correctly check if Woorkbook is open or not, but anyway if i got open my excel file or not I always get False Value in MsgBox. I don't know where is a problem. Please check it:

Imports Excel = Microsoft.Office.Interop.Excel
Public Class Form1
Function IsXLBookOpen(strName As String) As Boolean

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Merge Multiple Excel Files Into One Excel File And It Works For 3 Source Files But Its Not Working If Workbook With Worksheet Count Is > 3?

Aug 18, 2011

I'm trying to copy multiple excel source files into one excel file. My current code is working only for 3 source files..If more than 3 files are there, it doesn't copy the data but creates blank work sheet in the output excel file. Lets say I have a source folder with 5 excel files. Each workbook contains one worksheet with data. It copies upto 3 worksheets along with data into output excel file.

Lets say excel1 contains A as work sheet, excel2 contains B as work sheet ,excel3 contains C as work sheet ,excel4 contains D as work sheet ,excel5 contains E as work sheet .Now my output excel file should look like..OutputExcel with A, B, C, D, E along with respective data.But my current code is giving output as A,B,C worksheets along with respective data but its creating blank sheet1,sheet2 in place of D & E.

SSIS Script Task Vb.Net Code:

Public
Sub Main()
Dim filePath
As
String =

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Code To Check If Workbook Exists

Jan 15, 2012

I have (in Excel) code similar to this:And then from there it will call the corresponding module and pass varStar to each module and run the code. The issue I have is that sometimes (like right now) it is a new year, or a new month and varStar may not exist in the specific workbook. How can I code it to, if varStar doesn't exist just skip it and keep going. I tried On Error Resume Next, and On Error GoTo 0. But that wasn't 100% efficient.

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Set The Value To An Already Open Excel Workbook?

Jun 15, 2011

I am working with an application, which stores and manipulates data in Excel. have successfully imported the necessary Excel libraries viaImports Excel = Microsoft.Office.Interop.Excel

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Why Is The Message Box Behind The Excel Workbook?

May 16, 2010

In the following code why does the message box display behind the workbook,instead of on top of it? It does this related to the line, app.Visible = True. if this line is commented out the message box appears in front, but there is no workbook visible. I've used the message box in other places without a problem. Is there something fundamental here that I'm missiing?

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Office Automation :: Check If Workbook Is Open?

Jul 26, 2010

how I might check to see if a specific Excel Workbook (call it Test.xlsx) is open?I have a routine that calls a subroutine. Sometimes at the time of the call Test.xlsx is open, sometimes not. So when the subroutine runs, I need it to check first to see if Test.xlsx is open. If it isn't then the subroutine should open it and perform the subroutine's purpose operations. If it is open, it should not try to "re-open" it or worse open a copy of it; it should simply perform the subroutine's purpose operations.

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Add Multiple Worksheets To An Excel WorkBook?

May 10, 2010

I wrote code that creates an Excel workbook wit a single worksheet (see below). How can I update this to add multiple worksheets to the workbook?

''' <summary>
''' Create a new XLS Excel spreadsheet based on a passed CSV (comma separated values) file.
''' </summary>

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Create Excel 2003 Workbook ?

Jun 5, 2011

I'm trying to create an excel 2003 workbook from my vb.net project I referenced the code from this website [URL]

However i'm getting error on this line "objSheets = objBook.Worksheets"

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click

''Create the Excel object declaration

Dim objExcel As Excel.Application = Nothing

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Create Excel Workbook With Macros?

Jun 30, 2011

need to create an excel workbook with macros that clients accessingthe web app will download. Data to populate the workbooks comes from a database and I need macros to generate lookup tables in the workbooks. I cannot automate Excel to do this sincewill NOT beinstalled on the server. Which tool or component can I use for this task?

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Creating Excel Workbook Dynamically Through .net?

Jun 5, 2011

to create excel workbook dynamically where data will be input and manipulated by user. i want graph as well to be created using the data i manipulated and entered.i want as many as work sheets to be added in workbook once it is created.

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Declaring Excel Workbook In VS/VB 2010?

Mar 25, 2011

My question centers upon the two approaches, (1) and (2), shown below, to declaring Excel workbooks in .Net.The two approaches interact differently with the lines "wkbk10 = app.wkbk10.open()" and later with

Range references to this workbook,like "rng1Stocks = CType(wkbk10.Sheets(1), Excel.Worksheet).Range("H5:H30")".

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Excel Open Workbook Timeout?

Mar 4, 2012

I think I am trying to do something simple. I am using this command:[URL]..Sometimes VB gets hung up opening the website. If this is the case, I want it to quit trying and move on to the next line of code.

For example, try to open the website in excel for 45 seconds. If still not open, skip and move to next line of code.

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Multithreading Errors With Excel Workbook?

Aug 26, 2009

I have a .Net program that responds to worksheet updates of an Excel 2003 workbook. Sometimes when the worksheet is updated and I try to write related data to my forms, I'm getting "Cross-thread operation not valid...." errors. This confuses me, as I have never done any multi-threading in my program. Does the mere act of me responding to events of an external excel worksheet mean I am now multithreading? Is there a way to handle the events without multithreading?

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Open Excel Workbook 'Beeps'

Feb 10, 2012

I have the following function to read an excel spreadsheet and read a certain cell for a value and then I put it into my own List(of T). Everything works fine. However the one quirk I am running into is that as the "oExcel.Workbooks.Open(ExcelFileName)" executes, it does a "Windows Beep" sound.

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Retrieve And Save To Another Excel Workbook?

May 17, 2012

I tried the following code to retrieve data from an excel file,apply query and save the result of query to another excel file. Now there are two problems: One,I am getting the required data but some reduntant unwanted data too. Second,It only works if the excel file, from which the data is retrieved, is open.

Dim dr As OleDbDataReader
Dim i As Integer
Dim strLine As String = ""

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Using VB To Find A String In An Excel WorkBook?

Aug 28, 2010

I am working on an application where I need to locate a range of cells within a worksheet. Since the actual location of the data will vary for each worksheet, I have come to the conclusion that I can put a string near the range that I am looking for (i.e. the text "*SUMMARY*") and since I will know the location of the data that I am looking for relative to the location of this text string, it should work.

I have made some progress but am having trouble getting the Find method of the range component to work. My code is below. This code finds each worksheet and shows me the name but I also need to to find the location of the cell with the string "*SUMMARY*" in it (if it exists).

Imports Microsoft.Office.Interop.Excel
Public Class Form1
Dim oExcelApp As New Microsoft.Office.Interop.Excel.Application

[code]....

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View And Search Excel Workbook?

Feb 16, 2012

I wanted to know if i could use vb.net (visual studio) to create an application that seaches these worksheets for a key word then returns any rowns with this key word on?

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VS 2010 Program With Excel Workbook?

Feb 21, 2011

I 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

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Write Excel 2007 Workbook With C#, .NET?

Nov 29, 2010

Content in Excel 2007(as the attachment):

C# Source:
private void ExcelDocViewer( string fileName )
02 {
03 try

[code]....

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Excel - Open A File In An Active Workbook?

Aug 19, 2010

I have a program that filters data and then outputs it to a tabg delimited file. I then use Excel Interop to open this file in Excel because directly outputting to a worksheet takes too long. So currently I am using this code:

AD.DF.WriteToFile(vbTab)
Dim WB As Workbook = ExcelApp.Workbooks.Open(AD.DF.DatafileInfo.WriteToFileLocation)
ExcelApp.Visible = True

The first line takes the filtered data and outputs to a tab delimited file. The second opens that same file in a new workbook in Excel. And obviously the third makes Excel visible. Here is my problem though: right now when this code is run there are two open workbooks. I already have an active workbook and I would just like to open this file to that workbook.

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IDE :: Open An Existing Excel Workbook From A Form?

Dec 5, 2009

I have successfully created a new excel with the code

[xlApp = New Excel.ApplicationClass]

and can transfer and manipulate data from my VB2008 form back and forth with the spreadsheet One time only each time I try and add additional data it wants to open a new workbook with the same name but cant seem to get it to just add the additional info.

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Importing Data From Excel Workbook To A DataGrid?

May 17, 2010

I would like to Import data from multiple sheets in a workbook. With this following code I get the this error: "The MS Jet database engine could not find the object 'Sheet1$' Make sure the object exists and that you spell its name and path name correctly." The name and path are correct, the error ocures in the highlighted statement. The sheet name is Sheet1

[code] Private Sub ExellFrm_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim MyConnection As System.Data.OleDb.OleDbConnection

[Code]....

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