VS 2008 - Creating / Saving Excel File In BGW
Jun 4, 2011
I am trying to use the BGW to save a DGV to excel file, but don't know how to do it correctly, specifically setting the savefile name this code doesn't work gives me:
'System.Runtime.InteropServices.COMException' occurred
- Make sure the specified folder exists.
- Make sure the folder that contains the file is not read-only.
- Make sure the file name does not contain any of the following characters:
Ensure that your Main function has STAThreadAttribute marked on it. This exception is only raised if a debugger is attached to the process. I also tried doing the Save in the BGW RunWorker Completed event but then there is no file name. It seems I need to pass the file name the user inputs in the SaveFileDialog to the BWG WorkerCompleted event somehow
Private Sub excelexp_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles excelexp.Click
ProgressBar2.Visible = True
Saving.Visible = True
Dim saveFileDialog1 As New SaveFileDialog()
[Code] .....
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Mar 2, 2008
I have a VB.net applications that runs on XP and creates a directory and creates an Excell workbook and saves it. But when I do the same in Vista , when it tries to create a directory to save the excel workbook, it gives me an error that the directory does not exist. If I create the directory manually, it still gives me the same error. Is there a COM call for office 2007 on Vista other than worksheet.SaveAs(FileName:=path). All else works on Vista apart from creating a directory and Saving Excell Worksheet.
Public Function createDirectory(ByVal path As String) As String
Dim new_path As String
Try
[code].....
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Oct 6, 2009
I need my app to create a excel file, but I am getting a error running this code. While running this in debug, on the line "xlWorkSheet.SaveAs("C:vbexcel.xlsx")" there is a error saying "ComException was unhandled" and "Exception from Hresult 0x800A03EC"
Imports Excel = Microsoft.Office.Interop.Excel
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object,_
ByVal e As System.EventArgs) Handles Button1.Click
[code]....
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Dec 30, 2009
How to create and save screenshot to PNG file? Lang:VB or C# (VS2008)
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Nov 15, 2009
I'm currently working on a program to store files and information. I'm wanting the program to be able to have multi-user logins i.e. there are numerous combinations of usernames and Passwords. I've created a program that will create new accounts and save them in a .bin file (in the form Username Password). However, now I need to use the user accounts to grant access to a form.
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Aug 30, 2010
I have this script that I'd like to in addition save as a xls file, also save as a .txt in the same directory, or even a different one. Can I get some guidance here?
Imports System.IO
Module Module1
Private Property fs As Object
Private Property BaseName As Object
Private Property FullTargetPath As Object
[Code]...
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Aug 25, 2010
I am exporting my values in my textboxes to an excel spreadsheet (user clicks "Export" button on form). After it is done, it asks me if i want to overwrite my current excel spreadsheet. Is there a way that I can open a save as dialog box so I can choose what name and where to save it?
Private Sub ResultsExcelbgw_DoWork(ByVal sender As System.Object, ByVal e As System.ComponentModel.DoWorkEventArgs) Handles ResultsExcelbgw.DoWork
Dim Resultsdata As ResultsDataDef = DirectCast(e.Argument, ResultsDataDef)
[code]....
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Aug 17, 2009
i have prepare one Excel file which contains 2 colums of data . one is having account number & other one is having Descrption .
here Few of the descriptions are having - or + signs in starting of the Description. like - internal increment.
when i save the same file as a CSV file then this perticular cells are displaying as #NAME? ( =- internal increment ).
Due to combination of =- perticular cell contents are displaying as #NAME?
disable treating as formula so that i can load this file to my application as needed.
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Dec 12, 2009
I am creating a shell for a FORTRAN application which reads a tab delimited text file.Because I am using Excel to manipulate data, is it possible to use the Excel Automation features to "save as" a tab delimited text file?The only method available seems to be a unicode text format, which does not work. Or is there another format that mimics tab delimited so that the FORTRAN application will read such a file without difficulty?
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Apr 3, 2011
I would like to use code to create a checkbox with default properties and place it at a certain position in a groupbox. For example, i would like to do this by pressing a button and that i can give in the name and tag by use of an imputbox. Also, i have noticed that if something like this is done, these changes aren't permanent and don't apply to the designer nor the code in VB. Is there a way to let the newly created checkboxes appear in the designer? And what about permanently deleting checkboxes by pressing a button. With "Dispose()" it isn't deleted from the designer...
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Jun 1, 2009
I'm working on saving a database(excel) in GUI. I have a button that link to an excel file that is saved in my desktop. But when i click on it and change the details in the excel file, it can't be saved.
[Code]
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Dec 4, 2008
I have a windows form application written using vb.net 2005 to generate and save an excel file. I faced some problems with the saving of excel file. The program will prompt a message box with 'Yes', 'No' or 'Cancel' options if the existing file exists. If user choose 'Yes', it will override the existing file. If user choose 'No', it will open a savefiledialog to allow user to specify the location and name to save the file. Do i use filestream object to save the file when user choose either 'Yes' or 'No'? How can i go about doing it or where can i find sample coding.
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Apr 27, 2010
i am trying to create a form in VS using ASP that when upon submitting a form the details will get automatically stored in an xml file which can be accessed later on a chosen file save path.i have 2 files ... "Contact.aspx" and "Contact.aspx.vb".i have created the form in the "Contact.aspx" and when trying to enter the fields in the "contact.aspx.vb" i keep getting several errors such as for example...
Error 5 'Formatting' is not a member of 'System.Web.UI.WebControls.XmlBuilder'
Error 6 'WriteStartDocument' is not a member of 'System.Web.UI.WebControls.XmlBuilder'.
Error 7 'WriteComment' is not a member of 'System.Web.UI.WebControls.XmlBuilder'.
Error 8 'WriteStartElement' is not a member of 'System.Web.UI.WebControls.XmlBuilder'.
Error 10 'WriteAttributeString' is not a member of 'System.Web.UI.WebControls.XmlBuilder'.
there is like 30 errors in total... im literally stuck out my head been trying for 2 days now and can't grasp what im doing wrong ive tried even some of the tutorials online but loads of errors...
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Aug 3, 2009
I'm drawing a chart in a pictruebox with a sub called Techart. After that I'm trying to turn the drawing into a bitmap, so that it will be persistant and also so that I'll be able to save it. This is what I've got from searching the forum:
[Code]...
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Jun 2, 2011
I am working on some code to take a csv file, save it as xls, then chunk the data down into a series of new worksheets. However I am having problems with saving the changes and I really can't pin it down. The code is as below
[Code]...
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Sep 11, 2009
How to save a 2-dimensional array to Excel file. The result would be two columns in one Excel sheet.
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Jun 22, 2011
This is my first attempt at creating a Winforms application, and I have been developing in the .Net Framework (Silverlight, ASP.Net, WPF) for about 6 months. So, my appologies if this is a newbie question.
Basically what I am doing right now is taking the drawings of a stylus-based input, and storing them into an image field in a SQL Server database. Then, in another form, I go and get that image out of the database, and load it into a picture box. It works, but it is rather "sloppy" how it got there.When the user clicks save, it stores that image into a temporary folder, then converts it to a byte array and throws it into the database that way. Then, it deletes the file from the temporary folder. When retrieving it, it pulls it out of the database in a byte array, then converts it to an image in a temporary folder, thus displaying it on the form.
Is there a way that I can just bypass the storing of the file onto the user's harddrive both times, and go from byte array to picturebox?
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Aug 30, 2010
Here is my situation.
data = "" & data & ""
xlsheet.Range(crange).Value = data
xlfile.SaveAs(FileName:=finalfilename, FileFormat:=6)
This code puts " around the data, puts the data in the range and saves the workbook(xlfile) with one worksheet(xlsheet) as a csv file.
If I open the csv file in notepad I find these following
1.quotes are removed
2.leading 0 from numbers are removed
How to ensure that quotes are present while saving the file programatically?
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Feb 24, 2010
I have this peace of code, where I want to make an excel file:
Dim filename As String = ""
Dim sheetname As String = ""
Dim xlApp As Excel.Application
[Code]....
The problem is that this only works if the file and sheet already exists. How do I create a new Excel file?
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Nov 12, 2010
I export table from my db into Excel. So that every time I save the table, I don't overwrite the previous version I want to save the Excel file as date and time.[code]Conversion from string " & application.startuppath & " to type 'Long' is not valid.
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Nov 1, 2011
I export table from my db into Excel. So that every time I save the table, I don't overwrite the previous version I want to save the Excel file as date and time. I currently have this.
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Oct 25, 2009
I have an Excel file with utilizes macros to allow a user to enter names of people and then double click on cells to enter ratings via radio buttons. When I open a blank file and enable the macros, I can add users, rate their skills using the radio buttons, etc. with no issue. I then SaveAs the file and continue working on it. once I Save and CLOSE the file, then go to re-open it, the trouble begins. Keep in mind, there is no alteration to the macros directly. Just entering data and using the form as intended. Here's what happens.
I reopen the file.I enter in the name of a person on one line. I go to the first box - double click on it.It is supposed to pop up a dialog box which allows me to choose a rating via radio button (as I had been doing before I closed the file). Instead, in that first column of ratings, it instead gives me the following error:
Runtime error '1004'Unable to set the LineStyle property of the Border class
When I hit "debug" this is the code it points to:
If ActiveCell.Column = leftb Then Range(Cells(ActiveCell.Row, leftb), Cells(ActiveCell.Row, rightb + 1)).Borders(xlEdgeTop).LineStyle = xlContinuous I have no idea why this would not work when I re-open the file!
note that when I go to click on the subsequent cells (there are 8 cells in which you provide ratings, moving across the columns with each cell) - the 2nd through 8th cells function fine. The dialog box pops up, the rating can be selected. it's just the FIRST cell that gives the issue What would possibly be the cause of this? We need users of this form to be able to save, close, and re-open it if needed.
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Oct 28, 2009
I am creating an excel file in my vb app. Below is the code I am using to do this. But when the application is closed, I still have an instance of Excel running in the background. How do i close it? I can do it with the xlWBook but not the xlApp.
'create empty excel file
xlApp = CType(CreateObject("Excel.Application"), Microsoft.Office.Interop.Excel.Application)
[Code].....
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Feb 12, 2010
I have a vb.net app that I create an excel file with from sql data. It creates it fine but for cells that have a social security number, it makes that cell numeric and removes the leading zeros. Does anyone know how to force this cell as a string when adding it to the worksheet? Is there a property or method I can call to do this in my vb app?
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Aug 30, 2010
I am attempting to create a worksheet in an existing excel spreadsheet from visual basic 2008 but it does not create it. My code is below.
Dim strFilename = "C: est.xls"
Dim SQL2 = "CREATE TABLE" & _
" [" & strFileName &
";].[Sheet2] ;"
[code]....
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May 11, 2011
I am creating a excel application in VB.net using VisualStudio 2008.while adding reference Microsoft.office.interop.excel we have both managed ( On the .NET TAB) and unmanaged (on the COM TAB).currently i am referencing the COM tab but it is not showing the errors properly.
can i use the excel interop on .NET tab?which one is the better way to reference and what is the difference between those two?
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Feb 7, 2012
I am uploading an excel file to my app and want to read it. Do I need to have excel loaded to read this?I am getting an error of Object reference not set to an instance of an object.
Public Function GetExcelData(ByVal ExcelFilePath As String) As DataTable
Try
Dim OledbConnectionString As String = String.Empty
[code]....
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Jan 28, 2012
I have a small problem that I was hoping you could help me with. I was wondering if anyone could show me how to make it so when I save my textbox to the file it would show new lines for the text.
[Code]...
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Sep 23, 2009
I feel bad to post another question, but I can't find a answer to this kind of question anywhere.I am using some text files as a database. To seperate the records I use the # symbol. I am just using the write method to do this.... so when I open the text file it's a very very very loooooooooooooooooong line.
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Jun 9, 2011
Here is my current file
Public
Class Form1
Dim ScreenData(3, 4) As TextBox
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
FileOpen(1, CurDir() &
[Code]...
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