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.
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'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.
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:
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
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:
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
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]...
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
I am trying to open an excel file and write to it as data becomes availableI can create an instance of excel and write to the selected worksheet once. But, I can't seem to write back to the existing file. I keep on getting a null reference error when I try to send new data to the file.The function I am using will run once, but when it returns to the main form, I lose the values of xlApp and xlWorksheet. It appears that going in to the function makes the original values null.
I have a visual basic 2010 project with a solution. When I double click the solution the project opens. I cannot see the solution file. I am trying to add an existing project to my solution but I am having trouble.How do I add an existing project to an existing solution?
In VB 2005 if I double click the solution the solution opens with the project underneath it. But in VB 2010 they have made it complicated apparently.
I wanted to add new column to the existing table in my database table Please help.in the form it has a textbox in which you can enter any name that you want you column to bear. all this will be at runtime.i try but it keep saying (format of the intitialization string does not conform to specification starting at index 0) [code]
I have an executable that now has a requirement to expose data in XML format via a web service which can be queried by a browser.While I've seen tons about consuming web services and creating web services in web projects, I've not found anything that adequately explains adding such a service (or an equivelant) to an existing Windows app.
I 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.
So I'm working on this project. I got around 60 images or so which I need to OCR, then I'll be inputting that data into my program which formats it and inputs it within this DataGridView. Now, I need the same data to be exported into an excel file. I saw several tutorials online but none of them are current (for VB 2008 or 2010). Either that, or they're not for VB.NET Windows Form Application. [I'm using VS 2010]
I'm fairly new to Datagridview as well. Just learnt how to add data to datagridview using this tutorial: http:vb.net-inform...ridview_add.htm I was hoping you could help me out with where to start once I get my data all set up in the datagridview?
Can anyone help me on how when I click on a button in VB, it will browse an excel file that will display its information in a datagridview..Then when I click on update after it will save the result in the datagridview in an access database.
Is it possible to add a property to the existing asp:BoundField control without creating a brand new instance to which I'd have to declare <tst:BoundField></tst:BoundField>?
I have a for loop which goes like this - for i = 0 as integer to 100 result &= "Name" & sqldr("name") result &= "Lastname" & sqldr("lastname") result &= "dob" & sqldr("dob") next
The sqldr is the sql datareader (not important here) I want my end result to be Name1 = Sam Lastname1 = Davis dob1 = 01/01/1966 Name2 = ... Name3 = And so on depending on how manyrecords are in database. How do I make this happen in this for loop?
I'm trying to add a DataGridView to a Split Container Panel. I am able to add the control, but it just places it on top of the old one. What I want is to add it below the existing one. How to do it.
I have done a google and see that many people have asked the question on how to export a Datagridview to a Excel (.xls) file. For some reason I cannot seem to get it to work (i have gotton the program to open an Excel and save it, all hidden in the background). I use a bit of the coding from this source code [URL] but modified it and incorporated it into my program. It connects an OLE Database connection with the excel sheet... but what i want to do is beable to alter the sheet in the datagridview and export it back to an excel sheet. I am not trying to sound pushy when i say this but... if you download the source file i am using you will get a really good idea of my situation..
I have a a DGV with the following fields: FirstName LastName Address Job StaffNum Nationality DOB Notes Picture FileName
Now my DGV has records in it and I try to export it to Excel File. Now it exports the the Column Names above but none of the records. My code is below. Dim fs As New IO.StreamWriter("C:exported.xls", False) fs.WriteLine("<?xml version=""1.0""?>") fs.WriteLine("<?mso-application progid=""Excel.Sheet""?>") fs.WriteLine("<ss:Workbook xmlns:ss=""urn:schemas-microsoft-com:office:spreadsheet"">") fs.WriteLine("<ss:Styles>") [Code] .....
I got this code from the MSDN forums from a link someone posted. They said they changed IntCol and it worked to incoude the records as well but I cant figure it out. When I hit Export it does prom,pt me to save the file and saves the Names above to excel sheet but none of the records.
I tried to view an excel file from datagridview in vb.net. Here is my code :
Dim con As New OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;" _ & "Data Source='c: es.xls';" _ & "Extended Properties=""Excel 8.0;HDR=YES"";") Dim da As New OleDbDataAdapter("Select * from [sheet1$]", con) ds = New DataSet da.Fill(ds) gridinput.DataSource = ds.Tables(0)
The problem is almost all cells value from excel are displayed in my datagridview, but several are missing.
Can you import an excel file to a datagridview but with all the formatting of the excel file including different coloured cells, bolded text in certain cells etc.
