Iterating Through Rows And Columns Of Excel Worksheet And Getting Values
Oct 18, 2011
Is it possible to retrieve the value of a cell from the row and column index of an Excel.Worksheet? I need to itearate through all the rows and columns and get the values.[code]
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Mar 16, 2012
This is my first time posting in a forum like this, so please excuse me if I accidentally break any thread rules (btw, where can i find these?). I am very new to Visual Basic and have been trying to teach myself as I create this program. I have experience with macros in excel so I do understand some of the coding, but definitely nowhere near being proficient. I am using Visual Basic 2008 Step by Step (Michael Halvorson) to teach myself.
I am trying to create some code in my program that will allow the user to open an excel file and then return the number of rows and columns in the worksheet. There will only be 1 worksheet in the workbook (since this is just a small part of a larger program I am writing). I already tested the code that will open the file in another program and it worked fine; the thing that is catching me is the row and column counts. I'm a bit stuck here and was hoping someone could point me in the right direction. Here is the code as follows: Code: I have another sub for a quit button which I chose to leave out. The last line for the MessageBox is causing me problems.
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Aug 29, 2011
I am using the Microsoft.Office.Interop.Excel library in VB.Net on an excel sheet that is protected. All of the protected settings are working fine except that I cannot set Select Locked Cells which shows when you are using the Excel protect sheet interface but I cannot see how to set this to false using the library. I have tried all of the different values in the protect method but none of them toggle the value.Excel protected sheet menu Below is the code snippet I am using to get my workSheet, populate some values, and then protect the sheet. GetWorkSheet is an internal method which will return a WorkSheet object, and invoiceData is a datatable which has the data which is being added to the spreadsheet.
Dim newSheet As Worksheet = getWorkSheet(newSheetName)
' Make the current Work Sheet active so that it will be accepting the data.
newSheet.Activate()
newSheet.Unprotect(sheetPassword)
[code]...
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Apr 6, 2012
I want to edit the rows and columns of an excel file using vb 2010 express. NOTE : I dont want to open .exl file but want my program to read and edit them according to user. PS : I want to edit them according to cell number.
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Jul 5, 2011
I am trying to create a .Net application to edit a excel file by deleting some columns and keeping the columns which we need and then removing the duplicate values based on the first column which is going to be the Serial no. which should have a check to have 6 digits by default like 2563 should be displayed as 002563.
Code:
Public Function GetAllFileContents(ByVal path As String, ByRef errorMessage As String) As IList(Of String)
Dim contents = New List(Of String)
Try
Dim files = Directory.GetFiles(path, "*.xls")
If (files.Length = 0) Then errorMessage = "Please select the files"
For Each file In files
[Code] .....
I am trying to create something different by not only letting me do it for excel files but for say txt and csv files along with it. Removing all the values which I dont want and removing the duplicates and then if possible putting a check on the first column of data that the serial number number should have minimum of 6 characters and then The output file should have all the details in Uppercase
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Dec 2, 2011
I am wondering if it is possible to iterate using columns of datatable.
I have tried something like this:
Dim myCol As New DataColumn
Dim myRow As DataRow = Nothing
Dim myCell As New DataGridCell
[Code]....
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Oct 3, 2010
i have a problem. I have database with a tableadpater. i want to get the userid with this tableadapter.
Dim dsGN As New ForumTableAdapters.Message2TableAdapter
Dim dtBetrieb As Data.DataTable = dsGN.GetUserIdFromThisMessage(ConversationID)
For Each objRow As dsGN.Message2Row In dtBetrieb.Rows
mystring = objRow.UserId.ToString
Next
i get the error "dsGN.Message2Row is not defined" The Name ob my table in the database is "Message"
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Nov 7, 2010
The following code executes successfully 48 times. During the 49th iteration after executing (or during execution of) bitmap.EndInit() the for each loop stops executing and the xaml window appears. Anyone have any idea what might be occurring?
[Code]...
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Aug 18, 2011
I have Dataset ds filled up with values Until now I was displaying values in GridView. Now I want that all the rows should be columns and columns should be rows.I have 2 options: Either 1 I can directly convert grid to columns and display it, or 2 I can convert the GridView to html and then write loops to convert. I was trying the 2nd option but I cant figure out how I should do that.[code]With this code I am still getting same as GridView. Please help me for converting rows to columns and vice versa.
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Oct 1, 2010
When I iterate the media items in a Windows Media Player playlist and set the properties of a user-defined class to the attributes of a media item, the first n rows of the playlist are populated with useful information; however, the remaining rows are empty. If I perform the same operation but access the media items directly (e.g., display the attributes to the console window) then all items in the playlist are populated properly.
Here is an example of the output showing the condition:
Inserting song "The Arrest" from album "Jesus Christ Superstar [MCA Original Cast Recording] Disc 2" into database...
Inserting song "Peter's Denial" from album "Jesus Christ Superstar [MCA Original Cast Recording] Disc 2" into database...
Inserting song "Pilate and Christ" from album "Jesus Christ Superstar [MCA Original Cast Recording] Disc 2" into database...
[code]....
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Jan 10, 2012
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]....
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Apr 1, 2009
I would like to iterate through a dataset and obtain values of each column in a row
[Code]...
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Aug 22, 2011
I got a code that exports datagridview to excel, how can I format the worksheet in excel through coding in vb.net because I have to include a header before the data in the datagridview nd some data that is in my form in vb.net like the values in my labels and textboxes.
Imports System.Data
Imports System.Data.SqlClient
Imports Excel = Microsoft.Office.Interop.Excel
[code].....
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Aug 18, 2011
I'm trying to copy multiple excel source files into one excel file. My current code is working only for 3 source files..If more than 3 files are there, it doesn't copy the data but creates blank work sheet in the output excel file. Lets say I have a source folder with 5 excel files. Each workbook contains one worksheet with data. It copies upto 3 worksheets along with data into output excel file.
Lets say excel1 contains A as work sheet, excel2 contains B as work sheet ,excel3 contains C as work sheet ,excel4 contains D as work sheet ,excel5 contains E as work sheet .Now my output excel file should look like..OutputExcel with A, B, C, D, E along with respective data.But my current code is giving output as A,B,C worksheets along with respective data but its creating blank sheet1,sheet2 in place of D & E.
SSIS Script Task Vb.Net Code:
Public
Sub Main()
Dim filePath
As
String =
[code].....
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Apr 7, 2011
I want to add a textbox to a worksheet using VB.NET. I've searched for this in Internet and MSDN. In an artcile of MSDN, I found that maybe I should use "msoAutoShapeType", but I don't know how to use it.
I have add "Excel Libary 12.0" to my project and open and write value to worksheet, but could anyone tell me how to add a textbox to worksheet?
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Apr 25, 2012
Below is the method I'm using to export my gridview data to Excel. The user has asked if I can name the worksheet tab.
Private Sub btnExportToExcel_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnExportToExcel.Click
Dim form As New HtmlForm
Dim strAttachment As String
[code]....
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May 3, 2010
I'm using vb.net to manipulate excel worksheets and I need to copy a row from one worksheet to another in a different workbook. Nothing I've tried seems to work.
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Apr 15, 2008
I would like to prompt the user, in the middle of a VB program, either with MsgBox or any other dialog, to input data in a worksheet of the Workbook that contains the code and then, on some event, read the data and continue execution. I was not successful with MsgBox (and other forms) since it is modal. The user cannot get focus on the worksheet, input data and then continue execution by clicking a command button.
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Dec 4, 2009
When I used the following code:[code]the workbook opens but I get the following error - Invalid index. (Exception from HRESULT: 0x8002000B (DISP_E_BADINDEX))
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Jul 24, 2010
I am using VB.Net 2008 on Windows XP, and I am trying to sort a Worksheet in Excel. My code is as follows:
Public Sub SortLateDeliveries()
Dim intCounterA As Integer
Dim intCounterB As Integer
[Code]....
I have tried both of the sort codes indicated (one is commented out), and I have searched the internet and have found that other people appear to be using one or other of the codes listed and it works for them!
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Apr 9, 2011
I already have an Excel worksheet. How do I write some values to that worksheet from my VB application?
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Aug 25, 2011
I have a csv file. I need to open it, delete whole row on basis of a column value, Update few of the column values and save the file as .dat file. I am using VB.net 2010
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Mar 24, 2011
I have been trying to create a excel sheet as an output of my .exe but canīt doit.[code]...
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May 22, 2009
I have a bunch of Excel files, each file with multiple worksheets (aka, tabs). I want to loop thru each file, and within each file, loop thru its worksheets and do some stuff. I've included Microsoft.Office.Interop in my code and I am able to do Excel operations but I am not sure how you loop thru the multiple worksheets within a workbook.
Here is what I have so far.
Imports System
Imports Microsoft.Office.Interop
'The command take one argument.
'It is used to locate the current source directory where the Excel files are saved.
'The command will open each file and loop thru the tabs in the file.
[Code] ......
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Jul 15, 2009
I'm trying to allow users to add a volumetric sheet to an existing excel spreadsheet. I need it to check to see if the requested tab name currently exists and if not then to create the sheet and be able to populate it with the proper information. Also, how do I reference back to the active worksheet once it is created.[code]...Create and name a new worksheet within an excel file?
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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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Feb 8, 2011
I am getting an error message when I am attempting to write to an excel worksheet using VB.net 2005
Operation must use an updateable query I have gone thru the S/O search results[URL]..My code is:
[Code]...
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May 2, 2012
I know I havent posted in awhile but you guys have done such a good helping me, my projects have been a breeze lately I have a new challenge though and I cant seem to figure out the solution. This new project Im working on sends a range of cells from an excel worksheet to the body of an email message and attaches two files.
I already have the automation down for the population of the excel file.I just need to copy Range A1:F20 from xlsheet3 to the body of a blank email with a populated subject line.Ive checked out this site already [URL].. but he seems to be accomplishing it with excel where as I (if I can) would like to do it in VB on VS .
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Jan 26, 2011
suppose I have an excel worksheet, I want to paint the particular cells with gray color then save it as a new file.
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Jun 1, 2009
My application searches for a specific worksheet in an open workbook. The code to find the worksheet is:
If Amendaction = True Then
If oBook IsNot Nothing Then
For Each ws As Excel.Worksheet In oBook.Sheets
If ws.Name = SheetToFetch Then
SheetFind = ws.Name
[code]....
When I execute the code, depending on the worksheet name, the result found in ws.name has one or more spaces in front of the text. e.g. "Bour001" used in creating the worksheet name becomes " Bour001" when returned by ws.name.
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