I have a VB.Net App that on ButtonRun_Click open Excel to get the "tab" and "column" then another buton that past content from textboxes. I get a "COMException was Unhandled" If I reopen excel it's in use.
Private Sub ButtonRun_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ButtonRun.Click
Dim MyExcel As New Excel.Application
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I'm trying to upgrade an Excel VBA workbook to a VSTO Excel Add-in in VB.NET using VS 2010. In the original (i.e.- VBA) version I have a modeless UserForm (called frmMain) that floats on top and is visible at all times while the user is still within the Excel application, but is not visible if the user moves to another window outside of Excel.
For example, within Excel the user can click on any worksheet tab, select any cell, etc. and the UserForm is still visible. This is exactly how I'd like it. The problem is, that in the new VSTO add-in, I can not get the Windows form to mimic this same behavior. I use frmMain.Show() to show the form as a modeless form, but the moment the user clicks an Excel worksheet (i.e.- activates a worksheet) the form becomes hidden behind the worksheet.
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Im currently looking fora solution to load/delete/write to a csv file. I tried to save my .txt into .csv but when its loaded into excel it writes everything in column
A1: John Freeman,Apartment 1 Street 2,New York with commas...
I want to put it in column A1: John Freeman B1: Apartment 1 Street 2 C1: New York
What am I missing? This cvs seems like the thing i want to work with.I testet it with writing my user registration form to .csv and its writing it perfectly into excel when i use & vbCrLf & between the text inputs, but will be listing them vertical and not horizontal as i want them to be.Also i don't know how to clear my csv document now and how to call the csv file to a table or a textbox like i did with my .txt file.
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readalltext can't read .csv so the code should be like?
I have a program that currently takes data and writes it to a MS Excel spreadsheet. (automatically opens the program, creates the cells, and fills them with data)
I would like to add an additional feature to my program that offers support for OpenOffice.org's 'Calc' spreadsheet program. (so users without MS Excel can use the application) So I am basically asking if anyone knows how to automate OpenOffice 'Calc' from VB.net. (I am using Visual Studio 2005)
I have searched on the OpenOffice forums but no one seems to know the vb.net code for this. So I was wondering if anyone here has done this, or would know how to do this.
how can I let VB.Net writes an excel 2007 file? For example, the data in a TextBox will be written to the excel file every 30 seconds.The enviroment is VS2008, .Net 3.5.I've just started VB for one month, so please give me a piece of code to help me understand. I tried to find the solution on the Internet, but none of the codes worked for me, some people mentioned import "Microsoft.Office.Interop" in the code, but if do that in my code, VS said that "Namespace or type in the Imports 'Microsoft.Office.Interop' doesn't contain any public member or cannot be found. Make sure the namespace or the type is defined and contains at least one public member. Make sure the imported element name doesn't use any aliases."
View 1 RepliesI'm trying to export a datagridview to Excel and open the Excel spreadsheet (not SAVE the worksheet).
Public Sub ExcelRpt(ByVal DgvName As GridView, ByVal url As String)
Dim xlApp As Microsoft.Office.Interop.Excel.Application
Dim xlWorkBook As Microsoft.Office.Interop.Excel.Workbook
Dim xlWorkSheet As Microsoft.Office.Interop.Excel.Worksheet
[code]....
I have an application the contains several excel files bundled with it. I'm not opening the files and processing them within my application. These files contain a data-connection to reload all of the pivot-tables within each excel file. I have a 'link' on my form, that when clicked, it determines which file to open and calls a sub using filename and executing Process.Start(filename) for any excel file I want to open. I have no problems opening any one of the files and then exiting excel.
The problem is when I 'close' a file, but don't exit Excel; then try to open another file(clicking link on form)... it creates a new instance of Excel.
I know from experimenting that the fileopendialog form will 'reuse' an existing Excel instance, IF it does not already have a file open.
How can I do the same thing without using the fileopendialog?
I don't want the end-user to have access to the folders where these files live. That's why I have multiple 'links' on my form, one for each xls that already exists. I just want them to be able to click on a link and the xls file opens AND if they choose to merely 'close' a file and not exit... Don't create a new instance of Excel, but re-use the existing one.
I took oledbconnection with excel file, after disposing this connection i m still unable to open that excel manually,It shows some access error.
View 1 RepliesBasically, i have to write a small application that just writes in certain cells of a set page of an excel sheet, the sheet will always be the same layout.
View 2 RepliesThis code worked fine in Excel 2003, but since upgrading to Excel 2007 (Office 2007) it's not working. In Excel 2003 it opened the access db form and stayed open. In Excel 2007, you can see the db open, then the form, but then it immediately closes. I've checked to code and it still works fine in 2003. Can anyone tell me how to fix this? Here's the code:
Sub OpenDatabase()
Set a = CreateObject("Access.Application")
strDB = "C:Weekly FilesWeekly Db.accdb"
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I want to add some ADD-IN command buttons to Excel when it opens. I can do this using VBA within Excel by code like Application.CommandBars etc..However I want to do this in VBNET to control Excel but don't see anything like EXCEL.APPICATION.COMMANDBARS in the Object Browser? I've searched online but am confused by references to 'VSTO' or uising 'RIBBONS' or 'OFFICE.CORE'..
View 4 RepliesI need to create/get a simple program that opens up a webpage, writes to a log if it is successful or not, logs out and repeats 5 minutes later.I'm not a coder myself, and I have no coders available at my work, I do on the otherhand have access to Visual Basic .NET 2010.
View 5 RepliesI can do this using VBA, but I want to be able to create the code using a compiled VB programme, which can then be opened in Excel.
View 1 RepliesI've had a search through a number of extremely useful articles on the forums, however rather than reinvent the wheel I thought I would ask if anyone already had what I am looking for..A simply little VB app that opens a session to a specific IP port and then writes to a test file everything it receives. If the connection drops, simply re-stablish it and keep listening for text to write to the file.
View 1 RepliesTrying to get names of all visible open excel workbooks. I found code online, that is below.I suspect the code is not working for me because either: I didn't include a reference (in addition to the MS Excel 12.0 Object reference and in addition to the Microsoft Office Interop reference, both were made) or something else basic being missed. i have been using the "early-bound" code below that is recognizing oExcelApp as visible...however, the open excel workbooks that I have open, are not being recognized.
I am using Windows XP and VB in Visual Studio 2010.Here is what I found online; disregard the late-bound if doesn't apply:
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I am exporting data to the "Sheet2" of excel using late binding. when i make excel visible to true, how to make sure that the current sheet displayed is sheet2
View 1 RepliesI have this issue that occurs with me and driving me crazy i have a report that contains thousands of records and i need to export it to excel , but the excel normal extension .xls
is showing missing records at the end of the file , so i save my file as an .xlsx extension it saves correctly but when i open the file it generates an error
"Excel cannot open the file '<var>filename</var>.xlsx' because the file format for the file extension is not valid. Verify that the file has not been corrupted and that the file extension matches the format of the file."but when i test the file i drag it and open it in an empty notepad all the records shows up correctly
I need to access the current instance of MS Excel. To do that, I wrote the following code:
Imports Excel = Microsoft.Office.Interop.Excel
Imports System.Diagnostics
Private _ExcelApp As Excel.Application
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The code runs nice, but it has a problem: After the user close the Excel application (click button X - note: no other instance of Excel exists), if you open the Windows's task manager, its possible to see the process Excel.exe.
If I open and close the Excel application, there is no process Excel.exe, but if I run my code with the Excel application openned, after the user close the Excel application, the process Excel.exe isn't finished.
How to open a picture that would be a Embedded Resource when a button is clicked? Like...Click the button, Then the picture comes up? And it would be better if It could open the picture up IN the program itself rather then extracting it and running it if you get what I mean.
View 3 Replies[Background]:I created a Winforms App that reads data and spits it out into an Excel Spreadsheet. On my computer, I have Microsoft Office 2003 and inside of the Visual Studio Project, I referenced COM Object "Microsoft Excel 11.0 Object Library". The Executable is on a shared directory and end users can run the application and generate the reports themselves.
[Problem]:Problems arise when an end user with Microsoft Office 2007 runs the application, generates the Excel Spreadsheet and sends it to someone with Microsoft Office 2003, the Excel Spreadsheet opens with the standard "this file is not in recognizable format" error and when you push "ok", the data shows up as symbols (garbled text).
[Question]When I reference "Microsoft Excel 11.0 Object Library" in my project, how does the .Net Framework (or my Application) find this COM Object object when it is ran from another CPU?I guess, I would like to know how references work. When you reference DLLs in a VS.Net project, compile the program and then put the execuable on another PC, how does VB.Net go about finding those DLLs you referenced or is it part of the compiled program?
I suspect when a user running MS Office 2007 runs my app, it is running a 2007 dll instead of a 2003 dll.However, I would think an error would be thrown if this was the case.
How to make a link button visible after another button has been clicked in asp.net(vb) in button_click()
it says error as "Object reference not set to an instance of an object."
i've done this in my code
Protected Sub InsertButton_Click(ByVal sender As Object, ByVal e As System.EventArgs)
Dim receipt As LinkButton = FormView1.FindControl("LinkButton1")
' receipt.Enabled = "true"
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I would like to open the excel file after create the excel file. The creating file function is done, but the system unable to open the excel file. My coding as below:
Dim xlApp As Excel.Application
Dim xlWorkBook As Excel.Workbook
Dim misValue As Object = System.Reflection.Missing.Value
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The code below opens a file in Example 1 and writes on another file only the lines that satisfy the condition If times > 4 to another file. What I want to do is illustrated in example 2
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t= 2 comes from Subtracting t= 11 - t= 9 from the script in example 1. I have scripts with thousands of lines every time the program should automatically subtract the next value with the previous one and write the result into a new file starting from t= 0
can I use Excel APi (Interop.Excel) without installing MS Excel.
View 2 RepliesI have an InfoPath(2007) form that users fill out and click a Submit button when complete. I have Visual Basic Code behind the button that needs to do the following:
- Opens and existing Excel spread sheet
- Updates a new row with the submitted information
- Save
- Closes
I cannot get this to work properly...I've been inundated with numerous errors. When I fix one error another one appears.
I have written an access application for project management and am trying to convert it to VB so i can make an exe. what i need to do is open an excel file because my gnatt chart creator is an excel document.When i run my debugger it says it doesn;t know what the open command is..I think i need to include a reference but do not know which one and there are lots to choose from. i have included the excel reference so the compiler knows what an Excel.Application is and what Application.Workbooks is. but when i try and go beyond work book i get no options like open or save or saveas or worksheets.[code]
View 1 Repliesi want to open an excel file inside my folder which is dynamic meaning it can be in drive c: or d: as long as it is inside a specific folder grace
View 4 RepliesI have to write a macro which should run a .BAT file and
should enter username and password. click on 'OK' button. click on other buttons available on the application.
how can i do all these things from excel VBA.
I want to open a excel file, and then close my projekt:
so when the projekt is close the excel is open with a file.
I was able to create/open an Excel ss from vb.net but how do I open it at 90% something like...
ActiveWindow.Zoom = 90
but I get "Activewindow is not declared."