Excel - How To Get Max Number Of User Filled Cells
Nov 5, 2010
Is there a way to get the max number of user filled cells in an excel sheet without passing a range or iterating through max cells per excel spreadsheet?
Right now I have
Imports Excel = Microsoft.Office.Interop.Excel
Private Sub DoStuff()
Dim oApp As New Excel.Application
Dim oWB As Excel.Workbook
Dim oSheet As Excel.Worksheet
[Code] .....
Right now the oSheet.Cells.Rows.Count = 1048576 and looking through the sheet there is less than 1000 rows of data.
View 1 Replies
ADVERTISEMENT
Jul 29, 2010
I have this code below looping through excel cells and drawing borders... the problem is that these excel cells may contain a number ex. "100", some have text like "hello" and some cells contain a zero the code is supposed to loop through until it finds a BLANK cell with nothing in it.however it stops at the first cell containing a 0. [code]
View 5 Replies
May 6, 2011
i am trying to build an application where a specified number of cells are spoken from an excel file. what i want is something similar to what happens in excel, once u click play one cell after the other is selected and spoken and it automatically moves forward to the next, speaks and so on... but if i use voicecombo/SAPI.spvoice the UI freezes! any ideas?
[Code]...
View 1 Replies
Oct 5, 2009
I want the people using my program to choose their own cell to read. I will have 2 textboxes (txtRow and txtColumn). They will have to click "read" to read from excel (but I will not open MS excel) and the answer will show in a message box. This is what I have done..
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnCheck.Click
Dim conn As New OleDbConnection("Data Source= D:LeeABC.xls ;Provider=Microsoft.ACE.OLEDB.12.0; Extended Properties=Excel 12.0;")
Dim da As New OleDbDataAdapter("Select * from [Sheet1$]", conn)
Dim dt As New DataTable
Dim Row1 As Single
Dim Column1 As Single
txtRow.Text = Row1
txtColumn.Text = Column1
da.Fill(dt)
MsgBox(mycell)
End Sub
View 2 Replies
Mar 10, 2012
When I add a new row to a datagridview, I am able to add data to a cell, but when I go to the row with the mouse the data disappears out of the cell. What code is needed to get the data to stay?
Private Sub BindingNavigatorAddNewItem_Click(sender As System.Object, e As System.EventArgs) Handles BindingNavigatorAddNewItem.Click
' When a new row is entered add Site id.
[code]....
View 1 Replies
Jul 5, 2009
My main goal is to have an excel spreadsheet that automatically plots the overall success of my stock portfolio over time (% change over time). I've been able to incorporate stock data into my spreadsheet by linking it to the web, but the trouble is the spreadsheet will keep no history of what the previous stock values were, so I can't graph how things change over time. This sounds like it might be too complicated to be built in to excel, so I was wondering if anyone knew how to program this in Visual Basic. Maybe something like this.... If refresh then new cell plus new time stamp. Another possibility would be to have a whole bunch of cells that refresh only once but at longer and longer intervals, e.g.,
[Code]...
View 2 Replies
Nov 16, 2010
I have been trying to find the last filled column row in a sheet using this.
clast = xlapp.ActiveSheet.Cells.Find("*", SearchOrder:=XlSearchOrder.xlByColumns, SearchDirection:=XlSearchDirection.xlPrevious).Column
rlast = xlapp.ActiveSheet.Cells.Find("*", SearchOrder:=XlSearchOrder.xlByColumns, SearchDirection:=XlSearchDirection.xlPrevious).Row
View 4 Replies
Jun 5, 2011
I have loaded a .TXT file into an array, and want to display each of the posts in the array in a grid.[code]...
View 1 Replies
Dec 6, 2010
I'm trying to read rows in a DataGridView and the following error is thrown up. The DataGridView was filled from an Excel Sheet with a column of currency. Ideally when the For Next loop finds a cell it doesn't like, I want to to ignore and resume the loop. The error message is: Object reference not set to an instance of an object
HTML
Try
For Each row As DataGridViewRow In Me.DataGridView2.Rows
FirstString = row.Cells(0).Value.ToString
[CODE]...
View 6 Replies
Apr 4, 2011
I need to arbitrarily count the number of cells in a row. Then return to the cell directly below the cell from which I started counting. In this cell I need to print the number of cells that contained data in the row.
View 1 Replies
Feb 28, 2012
I have a DataGridView that is showing some weird numerical data. For example, my under lying datatable of the datagridview has 4.69, but the datagridview shows 4.6899999999999999995. What is weird is it doesn't do it for every cell in the column. For example, my underlying datatable has 2.66 and the datagridview cell shows 2.66, which is correct. I should note that the underlying datatable column that contains the numbers is of floating point data type which comes from the database column and the datagridview column is TextBox. Here is what the values look like in the database, underlying datatable and datagridview.
View 5 Replies
Nov 9, 2008
I have a spreadsheet that I need to trim 3 columns. I have scoured the net but can't find anything that I've been able to use to trim each cell in columns A, H and I. I am using Excel 2003 and VS2005.
View 1 Replies
May 4, 2011
I'd like to export a table I have on my webpage to an Excel file and lock some cells in the new file. Here is my current code:
Protected Sub btnExportToExcel_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnExportToExcel.Click
Response.Clear()
[Code].....
This code works in generating the Excel file. I've searched for an was unable to find much for a solution to lock cells in the new file.
View 2 Replies
Jan 24, 2011
I am trying to write code that will compare the information in all row(one column) in the two spreadsheets and if they are not the same update another column on the row with a difference with Updated. but i am getting this error
countExcel = xlsSheet.UsedRange.Count
first_index = 1
last_index = countExcel
[code]....
View 1 Replies
Jun 21, 2011
I'm trying to copy cells from Excel to a new mail message in Outlook. Excel and Outlook both open fine but it doesn't copy.
Im using the following code:
Dim content = xlWorkSheet.Range("A1:C21").Copy()
Dim oApp As Outlook._Application
oApp = New Outlook.Application()
[Code]....
This does not copy the cells. It simply displays an email with a body that says "true".
I am using the excel sheet to do other things which work fine, so the excel code works. Just having trouble copying the cells.
View 4 Replies
Jul 13, 2011
I has some vb.net code to export some data into Excel format. I had set one of the column to date format. But I want to avoid user from changing the format because they can easily right click the Excel cells, and choose Format Cells. How can I disable this option in Excel via vb.net code so that user will always follow my format?
worksheet.Cells(intCnt, 19).NumberFormat = "dd/MM/yyyy;@"
worksheet.Cells(intCnt, 19).Style.Locked = True
I use the above code to locked it but seems to be not working.
View 2 Replies
Feb 18, 2011
How can I update an existing excel file? I want to change certain values already present in the excel file and I am using
Dim excelConnectionString As String = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=C:Test.xlsx;Extended Properties=""Excel 12.0 Xml;HRD=No"""
Dim excelConnection As New OleDbConnection(excelConnectionString)
[Code]....
View 3 Replies
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.
View 3 Replies
Nov 6, 2009
I'm trying to write an import function for getting data out of an excel file. How I currently do it is as follows:
Private Sub ReadExcel(ByVal childform As PhoneDiag.frmData, ByVal FileName As String)
Dim xlApp As Excel.Application
Dim xlWorkBook As Excel.Workbook[code]....
From what I can gather, it more than likely comes down to this line:
Dim Obj = CType(therange.Cells(rCnt, cCnt), Excel.Range)
All I need is the text from the cells, not to create an object for each cell (and then not send them to garbage collection).Is there an easier way of just getting the text? Ideally, if I can get a method for getting the text values of the cell, I'd like to get the multiple rowArray()'s added to a master array and update the program's values later.
EDIT:I also realize that I have two options if I were to create a master array, say mArr, to hold all the data.Would it be better performance-wise to have mArr to be large and the sub arrays small, or mArr to be small and the sub arrays to hold more of the information?I ask because the files that will be imported will have more rows than columns, so I was wondering if there was any "set" way of doing it.
View 4 Replies
Dec 2, 2010
vb.net
Dim xlApp As Excel.Application
Dim xlWorkBook As Excel.Workbook
[code].....
View 2 Replies
Aug 17, 2011
I have a VB.NET website and I am organizing some data in excel file. I need to merge cells which have same data in excel but everytime I try to this operation, program stops and shows this notification: I don't want to see it and I want program to continue without asking. Is it possible,
View 2 Replies
Apr 28, 2009
[code]i need to read data from specific cells and assign them to other cells.
View 4 Replies
Jan 27, 2012
vb.net
Dim xlApp As Excel.Application
Dim xlWorkBook As Excel.Workbook
Dim xlWorkSheet As Excel.Worksheet
[code]....
It loads the data, but there are no headers. I didn't make the code, just copied it using various sources as no one source was able to give me what I wanted.How would I go about adding a header row and making the font bold and increasing the width of each column?
View 1 Replies
Jul 19, 2009
Here is a code to print a dataview grid:
Imports System.Data
Imports System.Data.OleDb
Imports Excel = Microsoft.Office.Interop.Excel
[Code]....
How to increase the number of cells dynamically according to the need?
View 13 Replies
Aug 7, 2011
Aim to Achieve: To get rid of borders if any in the cells of range. I have :
[Code]...
View 2 Replies
Feb 16, 2011
All I would like to do concatinate text from two different cells using VB Express 2010. I know there is a =A1&" "&B1 Funtion if I were using excel an thier is also the concatinate function but I do not know how to use these in VB. Below is what I have so far for simply copying one cell to another.
title =
CType(xlsApp.Sheets(Counter1),
Excel.Worksheet).Range("A1")
[code]....
View 1 Replies
Feb 6, 2011
What I'm trying to do is extract values, colors, comments, and any formulas for a range of cells in a given worksheet. The ultimate goal is convert a spreadsheet someone has been using as a database into Access tables.
worksheet.Cells(row,column).Value 'extract value WORKS
worksheet.Cells(row,column).Font.ColorIndex 'extract color index WORKS
worksheet.Cells(row,column).Comment.Text 'extract comment WORKS
worksheet.Cells(row,column).Formula 'extract formula DOES NOT WORK
The return value for .Formula is same as .Value. That's not what I need. I'm looking for a textual representation of the formula (to extract rate information embedded within the formula).
View 1 Replies
Jul 5, 2009
My main goal is to have an excel spreadsheet that automatically plots the overall success of my stock portfolio over time (% change over time). I've been able to incorporate stock data into my spreadsheet by linking it to the web, but the trouble is the spreadsheet will keep no history of what the previous stock values were, so I can't graph how things change over time. This sounds like it might be too complicated to be built in to excel, so I was wondering if anyone knew how to program this in Visual Basic. Maybe something like this.... If refresh then new cell plus new time stamp. Another possibility would be to have a whole bunch of cells that refresh only once but at longer and longer intervals, e.g.,
Day Stock value
1 refresh at Day 1
2 refresh at Day 2
3 refresh at Day 3
etc..
View 3 Replies
Jul 15, 2010
I need to load an EXCEL file into my datagridview. However, my header row contains merge cells, which are not display correctly when loaded into the datagridview. Does anyone knows how to load merge cells correctly into datagridview? When the merge cells are loaded into the datagridview, they are displayed as individual cells instead of merged ones. I am using Microsoft. ACE.OLEDB.12.0 as the provider with Visual Studio 2008 .NET Framwork 3.5, EXCEL 2007.
View 5 Replies
Jan 28, 2012
Merge Cells in Excel Export From GridView?
View 1 Replies
