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
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
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] .....
I'm sorry if this is in the wrong forum or has already been asked, but I'm having a problem creating what should be a relatively simple code for an Excel Project. Essentially, the code is supposed to check if a certain column has Y in it and then copy that entire row onto another sheet and then move on to check the rest of the original sheet. This version of the code seems to do everything but actually populate the cells with the information. Every other attempt I've made has ended with "Application-Based or Object Based Errors". I've worked on this code for a few days now and I just can't seem to get it right. What am I doing wrong?
Here's the code:
Sub PopulateNewSheet()
i = 2
Do While Worksheets("Main List").Cells(i, 2).Value <> 0
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
[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.
I'm looking for some simple code that lets me create a Microsoft Access table via code.Currently all I do in Access is write and retrieve data from specific tables but now I want to be able to create them at runtime. Here is an example of the code I use to load some data just so you can get a feel of what I'm currently doing. Hopefully there is an easy way using the same rough way that I'm currently dealing with databases.
Code: Public Sub LoadCareer() Public rs As New ADO
I have created a windows application in VB.Net 2005 using MS Access as backend.Now before delivering its setup to client I have to create its trial version of 30 days and 60 days.How to do this ?Also my setup should be installed only on one computer.I mean my setup copy should be used for one time only.I know how to deploy the project i.e. I can create a simple setup of my project.
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.
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?
In the database i am saving the enitre path of the newly created folder along with the folder name..... but i want to save only the folder name in the database.... How to do this?
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?
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.
I have xml summary comments for each and every function and class of my windows project. Now I want to generating the XML Documentation File. I gone through the following link, but the Option was not there in my Solution explorer.
The user will enter a folder name in the combobox1 and clicking the create folder button the folder will be created in the applications bin folder; For doing this, i did this
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click If ComboBox1.Text = "" Then
[Code]....
Now when the user enters a file name in the combobox2 and clicks the save button(Save button is not shown in the snapshot) then a .txt file with the name entered by the user in the combobox2 will be created in the folder whose name is specified in the combobox1.
I have create setup for my project, when i tried to open the form which contain datagridview on it. It give me this error. Here is the attachment screen shot of the error.How to solve this error.
I have a form that is populated with specific data for each user. The user chooses this data themselves.I plan on saving this data in the application settings or via xml serialization.What I want to do, is allow users to generate a unique code for that data so that they can supply this code to others and all they will have to do is copy and paste it into their client and that data will populate for them.I could just allow users to trade XML files, but I want it to be easier than that.The form is basically setup this way;
Picture - Data 1, Data 2, Data 3, Data 4 Picture - Data 1, Data 2, Data 3, Data 4
The pictures correlate to pictures that are numbered anywhere from 0-600. The data can be any integer value from 0 - 200.
The editor basically uses a bunch of labels and pictureboxes (for now) and then an image is created from the panel which contains all of the controls.It sounds quite confusing, but basically i'm trying to create something like visual studio itself, which will allow "controls" to be added onto a panel, and then everything can be exported as an image when the user chooses to.I've worked out all the code to move controls and exporting the image, just having trouble trying to work out how to add an event for newly created controls as you can only handle a control, and not a variable.
I'm having some trouble setting up binding sources to these types of files, not sure if I'm selecting the correct driver in the wizard. Tried the generic ODBC and .NET drivers but it doesn't work, the dataset is created and adds a table but there's no data retrieved. The design object being used to display the table is a datagridview. Can't find documentation on dealing with files, only databases.
On my computer I've VB.net 2005. and also office 2007. I try to open an excel file like that
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
I have an excel file which I attached for ref. My intention is to copy the rows which start with the string "sarah" in column A & paste them to a new excel file, save it; copy the rows which start with the string "mike" in column A & paste them to a new excel file, save it.
So I have a custom control that when added to a form will create two child controls inside it. The custom control's designer handles the creation of these. The problem I am having is that when the designer generates code for these controls only the parent control is declared "WithEvents". So my que
