Looping Through Excel Rows?
Sep 7, 2011
how to loop through the rows in excel. I have rich text box that will contain serval line of text i then want the break the text into single lines, that i can do by use richtextbox.line and then use the split method. but the problem when i split the lines how can i put the first line in A1 the second into A2 etc there is no set amount of lines that will be in the richtextboxes so i would need to use some type of while loop i think but i can't figure out how to add a row for each new line any help would be great
my code:
Public Sub ExcelAutomationBtn1()
'Create a new workbook in Excel.
Dim oExcel As Object
Dim oBook As Object
[code].....
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Mar 27, 2012
For Each row As DataRow In dgrFarms.Rows
Dim sendtroopid As Integer
sendtroopid = row("idColumn")
'Do Something
Next
I've been trying to get a loop through a row in just one column in VB.NET for a while now, and i've done my homework on it too. When i use that code above I get:
Unable to cast object of type 'System.Windows.Forms.DataGridViewRow' to type 'System.Data.DataRow'.
I saw another guide which told me to do:
For Each row As DataGridView In dgrFarms.Rows
sendtroopid = row("idColumn")
'Do Something
Next
But that gives me the error:
Overload resolution failed because no accessible 'Item' accepts this number of arguments.
(That's a blue underline on 'Row("idColumn") )
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Oct 18, 2011
When my application loops through the first code block below, I get valid data for all datarow fields. [code]...
But I get an error when looping through that code block "Collection was modified; enumeration operation might not execute." [code]...
However, in the second code block, I get a valid record for MgrID, but I get a blank value for the other fields.
When I look in the database, all fields in that table have valid values.
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Jan 11, 2011
Im trying to loop through all rows in a datagrid and enter a calculation in the field in the next column (first column is already populated with appliance names). The code below works but only on the first row. Can someone be good enough to point out my error? For Each row As DataGridViewRow In DataGridView1.Rows
If DataGridView1.Rows(s).Cells(0).Value = "" Then
DataGridView1.Rows(s).Cells(1).Value = "0"
Else
DataGridView1.Rows(s).Cells(1).Value = dtDLopt.Compute("SUM(Measurement)", "Appliance = '" & DataGridView1.Rows(s).Cells(0).Value & "'")
End If
Next row
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Jun 2, 2011
I have a dataset that I'm trying to loop through to be able to save any changes made to that dataset and update my database doing so. Can anyone offer any code to do that effectively?
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May 5, 2009
I have an Excel sheet that looks like this.
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Jun 8, 2010
Is there a way to save either an array or list of data to excel without looping through the array/list? I know I have read from Excel this way but what about writing? Seems it would be faster.I'm collecting data from a device and storing into a list, then I copied it to an array getting ready to blast it in a single shot to Excel and got stuck.
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Oct 20, 2011
I need to loop the "buttonOneClick for one second iterations. The program will send a "P" character, wait one second, send a p, wait one second, etc... Also I need to write the information it receives to an excel spreadsheet.
Here's what I have:
Public Class Form2
Dim buttonOnePush As Boolean = False
Dim buttonTwoPush As Boolean = False
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
' Send strings to a serial port.
[Code] .....
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May 24, 2011
Simple code :
Private Sub ExportGridToExcel()
Dim Excel As Object = CreateObject("Excel.Application")
If Excel Is Nothing Then
[code]....
How to bind entire grid in to excel without looping..
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May 24, 2012
am converting some excel macro to vb.net, and it's almost done, but when i am looping throught +- 3000 rows and checking with 2 sheets it takes about 3 hours !
Dim Site1 As String
Dim Site2 As String
Dim Group1 As String
[code].....
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Aug 14, 2010
I'm trying to write a simple datagridview to excel. (I know there are lots out there but I can't find this one tweak)The following code runs well enough, I just need to be able to run a loop that says if a given row in the datagridview is .visible = false than I need the corresponding row in the excel spread sheet to become hidden.[code]
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Jan 15, 2012
I have an application that needs to know how many excel rows are in a worksheet before they are imported into my application.
At the moment I am asking the end user to enter this into a text box, but would like my application to do this can anyone suggest the best way to do this?
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Apr 28, 2011
I'm using the excel object model (importing namespace Microsoft.Office.Interop.Excel) to open an Excel.Application object in my code, then open a workbook, worksheet, etc. What I'm doing is ridiculously simple: I'm opening two worksheet objects; one is already populated with data and another one is empty and is supposed to be populated with some rows from the first worksheet. If some conditions, regarding cells in the first worksheet, are not met, then I want to copy the entire row in the second worksheet, at the first available row. I have an integer counter, initialized at 1, which indexes the first empty row in the output worksheet this counter is obviously incremented every time I insert a row at outputSheet.Rows(counter).
Every solution I've Googled either uses VBA (I'm looking for a solution based on VB.NET) or is not compatible with .NET framework 3.5 (I'm receiving exceptions at runtime). I'm guessing I'm not using the Range object correctly or something; in any case, what's the simplest way to do this? I really don't want to open an OLEDB connection to my excel file: this is too complicated for the simple row copying mechanism I'm trying to implement.[code]...
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May 27, 2009
I'am new in the VB world, and should translate excel sheets into new sheets.I'am using Visual Studio 2008 (with VB .net I think) and I'am trying to tackle empty rows deletion.Maybe an additional problem is, that some columns having a space (visualy the row is empty and should be deleted).[code]...
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Jan 29, 2010
how I would count the rows in an excel document until a row has no text. For example:
A1 has a value of 1
A2 has a value of 2
A3 has a value of 3
A4 is blank
So what I want is to count the rows until there is no value. For this example it would stop at A3 because there is no value in A4
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Aug 31, 2009
I have this problem with this macro. I think it's a VERY common problem, but I just kind find a straight answer since it's so specific.
I have data like this:
juanA50
juanB60
juanD70
pedroA50
pedroC70
pedroD80
pedroF90
felipeA50
felipeH100
felipeL200
The first column is the name of the employee.
The second one contains the name of payment concepts (salaries, insurance, etc).
The third column contains the actual amount to be charged or discharged.
The desired output should be like this:
___A_B_C_D_E_F_H_L
juan_50_60__70___
pedro_50__70_80__90__
felipe_50____100_200
Delete duplicated values in the names, merge the matching rows of an employee and put them in the correct colum that matches the payment concept. I'm using SQL Server 2000 and Excel 2007, so feel free to talk about querys and Excel 2007 new functions. This is done with a VB6 application (not VBA), so I'm using Excel's object model as a reference in my project. I was originally trying to do it with SQL Server, instead with a macro, but I couldn't find a way.
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Jul 28, 2009
I have a sheet which contains various data, from which one of them is dates. I would like a macro that will search through those dates and if it finds a date that is older than 6 months then it will delete the entire row.
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May 24, 2012
Dim oApp As New Excel.Application
Dim oWBa As Excel.Workbook
oWBa = oApp.Workbooks.Open(excelFile)
[code]....
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Jan 25, 2012
I am trying to order 7 rows in descending order of data from a particular column.
The data in the excel spreadsheet looks like this:
Name---Actual----Budget---Budget%
Name1--$2000-----$5000--------40%
Name2--$5000-----$4000-------110%
I want to order the rows by the 'Budget%' column in descending order.
The Code I have so far is:
Dim objExcel As New Excel.Application
Dim objWorkbook As Excel.Workbook
Dim objSheet As Excel.Worksheet
objExcel.WindowState = Excel.XlWindowState.xlMinimized
objExcel.Visible = False
[Code]...
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Jun 24, 2011
I want to read an Excel sheet into a DataTable using an OleDbDataAdapter, however, I only want a section of the spreadsheet (the part that 'looks like a database').[code]
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Jun 26, 2011
Is it possible to store Excel sheet and it's corresponding rows into a Dictionary and then later retrieve the rows into a DataGridView depending on the selected Sheet name from a combo?
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Sep 1, 2009
I have read serveral tutorials online and seem to be missing something. I am trying to have the leading 0's show up in columns by setting the format to text.
''' <summary>
''' This is required for the grid view to export properly
''' </summary>[code]......
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Feb 4, 2011
My requirement is to read all rows of an excel-sheet in first column that are not empty, are numeric and have a length between 15 and 20.
For example:
358218033354974
359473035499561
358218036156129
354022038366247
358218032490035
359473030516492
353210040325399
This column might have a header that is not numeric and there might be empty rows. This would cause an exception when importing them via SqlBulkCopy. So i want to prefilter the correct rows via OleDbCommand.
What I have tried so far is following(C# is also appreciated):
Using connection As New OleDbConnection(sExcelConnectionString)
connection.Open()
Dim schemaTable As DataTable = _
connection.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, _
New Object() {Nothing, Nothing, Nothing, "TABLE"})
[Code] .....
But this throws an exception if there are empty rows or the format of the value is incorrect. So my question is: How to restrict the rows of OleDbCommand to:
Get only first column of every worksheet
All values that are numeric
Skip empty values
Ideally only the values with a length between 15 and 20
Any way how to skip the empty rows, Or do I have to to select the whole datatable? I hoped it would be possible to do that only with one query because of performance reasons.
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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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Jun 5, 2011
I have this rather stupid litle excel issue which somehow just doesn't go away by itself;I'm creating a excel chart from three rows of information data. Each row has a header, so far so good. The first row exixt of calender data and I planned it to use them as my x-axis labeling. But somehow excel uses them as variables and changes them in to a third bar. Which is not what I had in mind when copied this litle piece of code.[code]
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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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Dec 23, 2010
I need to read an Excel file (.xls, 2003 format). The data in the excel file is composed of two parts: - The first 14 rows consist of all kinds of stuff, buttons, merged columns, stuff I don't need. You can see this as a header for the worksheet. - The next row (number 15 viewed in Excel) contains column header names - All remaining rows contain the data I need to read. I have tried reading this file using two different methods. The first method is simply using OleDb:
[Code]...
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Oct 25, 2011
I have a vb.net app that I can read a .xls file into a dataset or loop through as oledbdatareader and it gives the same result.Some of the rows have all nulls when I loop through them but if I open the same file in Microsoft Excel I can see that row fine.[code]From the info above the first two SKU values would come through fine but when I get to the 3rd row it would show a null.Is it possible that it kind of inherits the first rows type and since the 3rd row isn't all numeric if nulls it? [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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Nov 3, 2010
I pull a report from SQL Server being not a fan of cursors I process that table server side in my code behind file. So I pull this report that is an address label report and my client wants there to be X number of labels per person. So I coded this function:
Private Function ProcessX(ByVal dt As DataTable, ByVal X As Integer) As DataTable
Dim dtProcessed As DataTable = dt.Copy
dtProcessed.Clear()
[code].....
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