Open Excel Workbook On Client Machine With Web Application?

Sep 29, 2009

I'm writing a VB.NET WEB application and I'm fairly new at it. What I want to do is open Excel workbooks on the client workstation so the user can "Save As" or print or basically do whatever they want with it past that point. I've done this in a windows application using System.Diagnostics but all the information I've read so far doesn't seem to work. I can open .txt and .xls files using this approach:[code]but it opens in the browser, which is not what I want. Do I need to mix Javascript with the HTML and the VB code?

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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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[Code]...

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AD.DF.WriteToFile(vbTab)
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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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Aug 8, 2010

I am finally switching from VB6 to VB Net and am rewriting a technical application that calculates the heat transfer performance of automotive radiators, heater cores, evaporators, condensers, etc.The user can calculate a heat exchanger and save the results to an Excel spreadsheet. After a series of calculations he can then plot curves of performance.

He can also click on a previous calculation in Excel and import it into the VB routine. The user may have a number of workbooks open when he does this.My problem is I need to open the Excel workbook that is the active workbook. I have been able to select the active worksheet but have been forced to specify the index of the workbook. I have not been able to get the workbook I want.. The code I used is the following,

Dim oExcel As Object = GetObject(, "Excel.Application")
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How do I get the active workbook instead of Workbooks(1) with an index of 1?

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Dim oXL As Excel.Application
Dim oWB As Excel.Workbook
Dim oSheet As Excel.Worksheet

[code].....

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here is a copy of my current code.  Am trying to open an existing Excel spreadsheet then retrieve the old balance data refigure the new balance and store new data into the spreadsheet. Am I on the right tracK, or way out in left field?

Private 
oWB.SaveAs(
"Checkbook.xlsx") Nothing
oWB.Close()

[Code].....

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Why is it that the Java application can send the email, but the .NET application cannot?[code]....

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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"
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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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SSIS Script Task Vb.Net Code:

Public
Sub Main()
Dim filePath
As
String =

[code].....

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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
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[code].....

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[code]...

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

[code].....

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

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[CODE]...

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[code]....

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Dim dr As OleDbDataReader
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[Code].....

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[code]....

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02 {
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Edit by Moderator: [URL]...I know this thread is extremely old but it applies to my situation.Using Visual Studio 2008, VB, I get an error in this code:

Code:
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[Code]...

not reply to threads which have been inactive for more than one month and please start your own threads to ask your own questions. Since you question is about VB.Net, I have moved your thread from the Office VBA forum to the .Net Office Automation forum.

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[Code].....

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