I 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 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
[code]....
I'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 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
[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 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 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 have done my web page's menu ....and made it a dll... now i want to do a checking..any way to open my dll and update it
View 5 RepliesUsing VB to open a .csv file with "excel.workbooks.open", editing it, then saving as .csv.
Even though it is saved as .csv, it is still identified as .xls.
Is there an alternate way to open this .csv file so that when it is saved as .csv the excel application actually identifies it as a comma delimited, not a spreadsheet?
Supposedly I create a file called "hi.txt" and I use Process.Start(filename) to open it. then I File.Opentext(filename), edit it and close it using stream writer/reader, while I still have that file open.
In order to see the changed text I need to close "hi.txt" and reopen it.
Is there a way to automatically do that? Been experimenting a bit but with no luck.
i have a requirement where in i have to update the information of a record with new values.how to open the binary file and update with the new information.The existing binary file contains 5 records with serial nos.now i want to update the information of sno 1.i am using filestream, binary reader ,binarywriter SureshThere is an Island of Opportunity In the Middle of Every Difficulty
View 1 RepliesAttempting to execute an update command against an Excel 2007 file gives the error:
Operation must use an updateable query. I'm using System.Data.OleDb with a connection string like this:
Dim strConn As String = "Provider=Microsoft.ACE.OLEDB.12.0;" & _
"Data Source=""" & pathToFile & """;" & _
"Extended Properties=""Excel 12.0;HDR=YES"""
I have tried setting ReadOnly=false but that gives Could not find installable ISAM. I have also tried setting Mode=ReadWrite and IMEX=1 which didn't seem to have any effect. My update command is like this:
Dim cmd As OleDbCommand = con.CreateCommand()
cmd.CommandText = "UPDATE [" + sheetName + "] SET [Quantity Error] = 'test' WHERE [Full Name] = 'Mr. Brown White'"
where sheetName was obtained from querying the excel schema. Is it possible to do what I am trying to?
I have some excel file, where I have to programatically delete all hidden columns.The problem if that, when I receive these files, the cells are mainly formulas, and as I delete some columns I get some "#REF#" problems.
I thought a bit about the problem an decided to create a function that loops throught all cells and replace the value by its own value, before deleting the columns, via OLEDB:
dt.Rows(row)(col) = dt.Rows(row)(col).ToString I don't know if this works. So I followed an update example I found in google, but it doesn't work:
Dim conexao_Excel As String = "Provider=Microsoft.Jet.OleDb.4.0;data source=" & fileName & ";Extended Properties=""Excel 8.0;HDR=Yes;IMEX=1;"""
cn = New OleDbConnection(conexao_Excel)
cn.Open()
da = New OleDbDataAdapter("SELECT * FROM [" & sheetname & "]", cn)
da.Fill(dt)
[Code]...
"Update requires a valid UpdateCommand when passed DataRow collection with modified rows." I image this is pretty basic, but I have already lost so much time on this issues...
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."
how open excel's file from vb
View 5 RepliesI 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
View 5 RepliesI have two versions of Excel on my desktop: 2003 and 2010.[code]This works, but it always opens Excel 2003. How can I tell it I want 2010 instead?
View 9 RepliesI have form in which I can change the name of stations in my database (SQL Server: in table Stations).To choose which station I want to edit I've used a combobox.What I want to happen now is that when I update a station, my ComboBox with stations immediatly gets updated with the edited station.
View 1 RepliesI've been searching the net for a week now but I can't find the answer I'm looking for.
[Code]...
I have an application that opens up Excel, reads some information, then closes Excel. I developed this application using Microsoft Office XP 2007. A few weeks ago, my company upgraded to Microsoft Office 2010. The applications still works fine, but I can not compile in VS 2008 anymore. I get the error message: "Error 3 'Application' is ambiguous in the namespace 'Microsoft.Office.Interop.Excel'." I have updated my COM reference to Microsoft Office 14.0 Object Library, but the same message appears. [code]Obviously there is a bunch of stuff under this, but this shows where the errors are.I am unable to fix a bug in the program because I can not even compile it without error.
View 3 RepliesMy main goal is to have an excel spreadsheet that automatically plots the overall success of my stock portfolio over time (% change over time). I've been able to incorporate stock data into my spreadsheet by linking it to the web, but the trouble is the spreadsheet will keep no history of what the previous stock values were, so I can't graph how things change over time. This sounds like it might be too complicated to be built in to excel, so I was wondering if anyone knew how to program this in Visual Basic. Maybe something like this.... If refresh then new cell plus new time stamp. Another possibility would be to have a whole bunch of cells that refresh only once but at longer and longer intervals, e.g.,
Day Stock value
1 refresh at Day 1
2 refresh at Day 2
3 refresh at Day 3
etc..
I know I've banged heads with this error before, but before the reason was because of my IMEX setting. This is the reason why I made two connections to the spreadsheet, one that uses IMEX=1 for the SELECT query and one with that option removed for the UPDATE / INSERT queries. So now I'm stumped why this is breaking in the following [code].....
Is there an issue with trying to open the same spreadsheet with two connections (I thought I had done this before)? Or some other issue that is causing this error to be thrown? BTW, I'm using this in a vb.net program so I don't think the issue is related to the security issues that asp users usually face with this error... On the other hand, I'm also on Win 7 and I know that its security is much tighter than on XP where I've used other programs that also update an Excel spreadsheet. I wouldn't think so, but would I have to run this in administrator mode in order to update the spreadsheet?
I have two, soon to be many spreadsheet files. There are cell references between the files which need to be updated. I would write this in a excel macro but these spreadsheets are design tables for Solidworks, a CAD system and it does not allow macro enabled workbooks. So what I would like to do is push a button and open all of the spreadsheets, accept the update workbook prompt then save and close the files.
I've seen a similar command developed by someone using the Soildworks API but updating design tables in solidworks takes ALOT of time to run compared to just opening and closing spreadsheets.I am using Visual Studio 2010 Beta 2 along with Excel 2010 Beta 2 (I like to have the new things)
What I'm trying to do is load an Excel file and see through each row; in each row I want each cell in that row to be put into an array which would loop through for the next row.
Through finding the row cells I want to update my database with this information. At the moment I am assigning the excel file to a datagridview because I do not have the knowledge to find another solution after looking across the internet I still ain't come up with a suitable solution.
Upon running my code below; after one minute it crashes with the following error:
"The CLR has been unable to transition from COM context 0x94cc80 to COM context 0x94cdf0 for 60 seconds. The thread that owns the destination context/apartment is most likely either doing a non pumping wait or processing a very long running operation without pumping Windows messages. This situation generally has a negative performance impact and may even lead to the application becoming non responsive or memory usage accumulating continually over time. To avoid this problem, all single threaded apartment (STA) threads should use pumping wait primitives (such as CoWaitForMultipleHandles) and routinely pump messages during long running operations."
The code below is what I'm using atm (which crashes) but I want to be able to
Try
'declare a oledb connection to connect to the excel file
Dim MyConnection As System.Data.OleDb.OleDbConnection
[Code]....
I am working on trying to update a list of items to an Excel spreadsheet. I have created my own custom class called Songs and a List(Of Songs) that I want to update the spreadsheet with. It seems like everything is working -- I have even put in a debug msgbox that displays what Song it is currently on while iterating thru the loop -- but after the code iscomplete, I check the spreadsheet and only the first song in the list gets updated. I'm thinking it must have something to do with either the connection string or the parameters that prevents it from updating any other song records. BTW, there is no errors being tossed so it ats like it everything is being processed, just that the data doesn't change for the update inside the loop. Here is the section of
Private Sub btnProcessList_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnProcessList.Click
Dim adoConn As New Ole.OleDbConnection("Provider=Microsoft.ACE.OLEDB.12.0;data source='" & _
[code].....