I'm fairly new to coding in Visual Basic, and I'm working on a project where I have to allow users to write data to an existing Excel worksheet (by entering the data into a form created in Visual Basic.NET). I've created a form that allows users to enter data such as the following:
[Code]...
I'm working on a project where I have to allow users to write data to an existing Excel worksheet (by entering the data into a form created in Visual Basic.NET). I've created a form that allows users to enter data such as the following:
Name (First, Last)
Mailing Address
Email Address
Gender
Age
...and so on. I've programmed the data to be sent to the Excel file upon clicking on the Submit button in the form itself. I've also created the Excel file and placed it on my C: drive, but the problem I'm having is trying to send the data from the VB form to the Excel file itself. Can someone please show me some sample code or point me in the right direction as to how to get the submitted information from the form to save into the Excel file, please?
I'm trying to get the information to show up in rows and columns in Excel like the following below (the dashes are just to show that the information should be in rows and columns):
Name--------------------------Mailing Address-------Email Address-------Gender-------Age
John Doe---------------------2300 Jackson Street-------- xxx@xxxx.com-------Male---------17
Please see the code below:
Dim objExcel As New Excel.Application
Dim objWorkbook As Excel.Workbook
Dim objSheet As Excel.Worksheet
[code].....
I need to save the results of each search that I run on my database, into an excel file. So it is an iterative process where the new search results are added on as new rows to the excel file in each export. I am running the following code which works perfectly fine but for the fact that each export is saved to a newly created excel file.[code]...
View 1 RepliesOver writing an existing file.
View 6 Repliesi have started a program that reads the names, number and picture location from an xml file and populates text boxes. I now want to be able to update the text boxes and rewrite the xml file and save it to the same location.
Imports System.Xml
Dim H1 As New XmlDocument()
Dim xlist As XmlNodeList = H1.SelectNodes("/itemname")
[code].....
I have to write data to an existing text file. I know it is possible to write to an existing file. But, my problem is I don't want to append the new data at the beginning or end of the file. I need to append the new data at the specified line.
View 2 RepliesI have a workbook (Workbook1) that runs through some steps using visual basic, which ends up opening another workbook Workbook2). Once Workbook 2 is opened, I need to copy a section of data from it, into Workbook1 int a specific worksheet. I was able to do this by recording a macro, but the challange is, the name of Workbook 1, and Workbook 2, will vary by User. When I created the macro it uses the files as they are currently named. The section of code is below.
[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 am writing a windows application that interacts with data stored in an Excel Spreadsheet. I merely want to change the text value of a cell that already has text written in it.
View 2 RepliesI have this piece of code which picks the data in an excel file. At the moment i have the data into the dt table. how do i write the data in dt to FECHO_UNICRE table at the UTLT.accdb database? I want to fill the table just after deleting the existing records.
Octavio
Private Sub Unicre_Calculos_Load(sender As System.Object, e As System.EventArgs) Handles MyBase.Load
'Try
[Code]....
I've got lots of XLSX files and I need to append a new row after the last one in the file. I'm using OpenXML and so far I know how to open/create spreadsheet, but my search for adding new rows to existing files returned nothing.
View 1 RepliesI want to import my data, which I receive over USB (every second), to an Excel sheet. Thing is, I want to open only one Excel file and write everything to this one file, and by pressing a "STOP" button, data reception will be canceled and data in the Excel file should be saved and Excel file should close right after that. Here my code,
Dim excel_cnt as Integer<br/>Dim sv_var as Integer = 0<br/><br/>Sub write_to_excel()
Dim xl As New Excel.Application
[Code]....
I'm trying to figure out what would be the easier method for what I'm trying to accomplish. What I have is in, on the main form, a datagridview that is bound to an xls file. I then have another form that the user can import/paste data to another dgv. This content then needs to be appended to the end of the main form's dgv. Would it be easier to add it straight to the dgv and then save it to the excel file or save it to the excel file and reload the dgv? Or does it matter? I'm not exactly sure how to do either method but I figured I would start here.
View 1 Replieshow to insert a row into an excel file via vb.net?
I am familiar on how to do this inside the spreadsheet using vba - but not certain how to accomplish this within vb.Net.
the following is a working button to load excel data into a listbox. When I first wrote it I just used a loop to pull items 1-10 to do testing. Then sufficiently forgot about it and remembered just now. So in short here's the button:
[Code]...
I want to modify the third column of an existing excel file. The problem with below code is a new file is prduced with the new values in Column C and erases all other values in the orginal file. I want to update the orginal file with the new values.
Public oExcel As Excel.Application
Public oBook As Excel.Workbook
Public oSheet As Excel.Worksheet
[Code]....
I was developing a software with related to Excel, in which I have to write and SAVE the details at appropriate columns. I am currently having a problem in saving the data.
Private Sub Button1_Click_1(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
'Open
[Code].....
Very first time I debug the coding I haven't got much problem. But debugging it again gives me an Error AS: "A file named 'Resume.XLW' already exits in this location. Do you want to replace it?"
I was able to see this since I have enabled the display alerts. Disabling it generates a save as window.
This may be a lengthy explaination, but I am hoping to make myself clear.I have an existing Excel file that is created using the following code:
Dim warnings() As Microsoft.Reporting.WinForms.Warning = Nothing
Dim streamids() As String = Nothing
Dim mimeType As String = Nothing
[code].....
I have an application which opens one of several excel templates, fills a datagrid view with Excel Named Range data. Once the data is modified in the application I neet to save it to an excel spreadsheet. I currently have the following working:1. This sub writes 2 columns of data (Ingredient) and (Result) from those named ranges and places them in the datagrid
Private Sub CboBoxTypeCofA_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles CboBoxTypeCofA.SelectedIndexChangedWorkbookTemplate = ""CofABook = ""
[Code]....
This code works and the only problem is that after running the code the excel application does not close.Now I need to write the completed updates from the datagrid view and the other controls back into a workbook.Ive been searching around but have not found the proper way to do this and how to kill the oexcel application in the code above.
I have data that I want to have written into a Microsoft Excel File.I found the following question, but this is using a predefined name where as I want to use a Save Command Window on a menu bar.Coding for Excel sheet in Visual Basic 6 Essentially I have two columns of data, Participant Name & Time In Ring, I want to cycle through an array (I suppose) and have each item on its own line.
View 1 RepliesI want to import data from excel and move that to Datatable in VB.NET 2008. I wrote and working but its taking too long time.. for 1500 records its taking 4.40 min.
[Code]...
I'm writing a VB.NET program (VS 2005) that reads data from an XML document and writes it into a column in an excel spreadsheet. It's working fine, except for the following: after the first run, all the data appears as expected - for example
COLUMN
a
b
[code]......
i need to import a Single Column Excel File to an Existing SQl Server Table.
View 1 RepliesI'm developing a program that handles money, and there is a pre-made excel spreadsheet that I am to be transfering data into specific cells. How can I go about telling my program to write specifc data into specific cell numer in excel? Also, how can I get my program to write into specific areas of a MS Word Template (my program will generate letter with the same template just different names/addresses/valus)?
View 1 RepliesWe have an automatic process that opens a template excel file, writes rows of data, and returns the file to the user. This process is usually fast, however I was recently asked to add a summary page with some Excel formulas to one of the templates, and now the process takes forever.
It successfully runs with about 5 records after a few minutes, however this week's record set is almost 400 rows and the longest I've let it run is about half an hour before cancelling it. Without the formulas, it only takes a few seconds to run.
Is there any known issues with writing rows to an Excel file that contains formulas? Or is there a way to tell Excel not to evaluate formulas until the file is opened by a user?
The formulas on the summary Sheet are these:
' Returns count of cells in column where data = Y
=COUNTIF(Sheet1!J15:Sheet1!J10000, "Y")
=COUNTIF(Sheet1!F15:Sheet1!F10000, "Y")
[Code].....
I did ana application that interacts with excel (reading and writing files)But when the application ends and I close it, the excel file is still in the task manager procceses (ctrl+alt+del ->Proccesses)How can I completely close it?I'm using vb.net 2010 express
View 2 RepliesI have a csv file that needs to be automatically updated on a daily basis. I am writing a vb.net app to accomplish this. However, Im having issues with the entire process.I need to be able to read in a csv file, manipulate the data and then update the existing file. I have dabbled with using the Excel objects but I need some assistance.
View 6 RepliesI already have an Excel worksheet. How do I write some values to that worksheet from my VB application?
View 1 RepliesI Have an existing pdf file with some editable fields like text boxes and text boxes, where i can enter data manually and save the file,
View 1 Replies
