Excel Reading - How To Ignore Hidden Columns
Aug 12, 2009
I am reading XLS files, via JET provider, using the following
Dim conString As String = "Provider=Microsoft.Jet.OleDb.4.0;data source=" + fileName + ";Extended Properties=""Excel 8.0;HDR=Yes;IMEX=1;"""
cn = New OleDbConnection(conString)
cn.Open()
da = New OleDbDataAdapter("SELECT * FROM [" & sheetname & "]", cn)
da.Fill(dt)
The problem I am facing now is that some of these excel files have hidden columns: These columns are meant to be ignored. However, the code above fills my datatable with ALL columns (hidden and nothidden). Is there any "Extended Property" that I could add to the connection string, to ignore hidden columns?
View 2 Replies
ADVERTISEMENT
Sep 27, 2009
Reading Excel in .NET - some columns are read in as null
View 10 Replies
Sep 1, 2011
im usinf Gembox to read Excel files.I'm copying the fields to a datatable, so i have to add the columns to the datatable first.
Therefor im using this code:
For i As Integer = 0 To objWorksheet.Columns.Count - 1
objDataTable.Columns.Add(i, GetType(ExcelCell))
Next
But objWorksheet.Columns.Count is 0 even if theres data in 4 columns.
View 1 Replies
Sep 5, 2011
In my application I read data (using data binding) from an Excel spreadsheet into a DataGridView. This works, but the data columns contain text fields (strings). I would like to set the data type for some columns to "Date" and Decimal. I cant do this on the DataGridView (error: cant change properties for data-bound stuff) and I cant figure out how to do it on the dataset or data-table that I bind to the DataGridView.The following is the code I use to read and bind the data:
Using con As OleDbConnection = New OleDbConnection(cs)
'
'open the OleDbConnection
[code]....
The commented out code (below the 'Todo: comment) causes a additional table, but I want to change the table with the data.
View 2 Replies
Jul 5, 2011
How can i do a workaround for this? I two databases(.sdf). Database A has table A1 Database B has table A2 Table A1 is an exact duplicate of A2 minus 3 columns My dataset(.xsd) is based off of tableA2 in Database B. I can fill all my tableadapters in Database A and all info in table A1 using the dataset. My problem lies when I do TableAdapter.Update() for Table A1(Since the dataset has the 3 missing fields) it tries to update table A1 with info that isn't there and I get an error. How can I update table A1 and ignore the 3 missing columns using the single dataset? Or is TableAdapter.Update() designed to Update the Database with all columns found in the dataset ?
View 1 Replies
Aug 13, 2010
So I want my program to read a file, but sadly there are null characters in the text file. The program searches for strings and I want it, when searching, to ignore all of the null values and just the actual characters. Is this possible?
View 4 Replies
Jun 25, 2009
With my Tool we are scanning excel files and generating reports. My problem is some excel sheets are password protected and getting pup-up while scanning and it halts the Tool to run further.Could someone let me know the solution, how to overcome with this problem. I just need to skip the sheet and continue with scanning without any user intervention.
View 1 Replies
Oct 6, 2010
Declare some class level variables that will keep track of the sums for each column. For example:
[Code]....
During the RowDataBound event, retrieve the data from each column and add it to the appropriate sum. I'm not sure if you are developing an ASP.NET application or a Win-forms desktop application so I cannot help you any further at this point. What have you tried so far to solve the problem?
View 1 Replies
Apr 13, 2011
I am using following code to close excel applications . I want to kill the hidden excel apps how to do it, Means following code closes all the excel apps but I want to close those opened from my program and are hidden
View 4 Replies
Nov 28, 2011
How do I find out the hidden excel sheet name using ADO(OLEDB) in C#? In My Excel workbook there are a lot of sheets. Only one Excel sheet is in hidden mode. I need to find out the names of hidden sheets. My code finds both hidden and visible sheets.This is my code to find excel sheet names for all sheets. Is it possible/can any one tell me how to find out hidden excel sheet names without using Interop services in C#?
[code]...
View 2 Replies
Jun 13, 2012
I am uploading Excel File and below is my code. I have no problems so far with filling my dataset but when I tried to validate required fields, I get the error that some values are missing. I checked the Excel files and noticed that there are hidden rows that the user was not able to checked when he's adding values.[code]...
View 2 Replies
Jun 22, 2009
I need to migrate from Excel 2003 VBA to Excel 2007 VBA. When Microsoft introduced Excel 2007 it removed many objects from the previous versions and added some new objects. Also it hid some properties of particular objects. These hidden properties can be viewed by going to the object browser, right clicking any object and selecting "Show Hidden Members". My problem is I need to access these hidden properties. Is there any way I can access these properties. I can successfully migrate from Excel 2003 VBa to Excel 2007 VBA with the same functionality?
View 5 Replies
Jun 19, 2009
I have a program in VBA that uses Flexigrids. A little while ago, the program stopped working giving the error 'Compile Error In Hidden Module'. We were advised to remove Windows update KB960715 which we did and it worked fine. However, it has just stopped working again for the same reason and that update is no longer installed.
View 1 Replies
Oct 20, 2010
I have an application that opens and saves spreadsheet via interop.At start up I set
Code:
_excelApp.Visible = false;
_excelApp.DisplayAlerts = false;
[code].....
View 2 Replies
Oct 23, 2009
The following code works fine but seems to leave instances of excel.exe running in the background. How do I go about closing out this sub properly?
Private Sub ReadExcel(ByVal childform As Fone_Builder_Delux.frmData, ByVal FileName As String)
' In progress
childform.sampleloaded = False
[code]....
View 2 Replies
May 17, 2010
how to read from the first column but I need to read from both of them. I am using full row select which I need on there.Here is the code I am using to get it for the first column.
Dim I As Integer
For I = 0 To ListView1.SelectedItems.Count - 1
MsgBox(ListView1.SelectedItems(I).Text)
Next
View 2 Replies
Apr 25, 2012
I haven't used VB in 2 years and have forgetten way too much, but I still understand quite a bit. I just can't synthesize it.
Anyways, here is what I am struggling to do.
I have a CSV file as formatted in the screenshot at this link:[URL]
Number of rows can change but the number of columns won't.
I need to:
1:read in a csv file
2:take the second column save the first and last number as a variables for computations (these numbers will be the smallest and largest numbers, respectively if that makes it easier to program)
3:put into the first column of a new array the following computations based on the 2nd column from the csv file computation=((array value-first number)/(last number-first number)*100)
4:add to first column the same computations again but +100 i.e. if the first row had a cell that had computed to 1 then the next number would be 101
5:add to first column again the same computations again but with an addition +100 (+200 total) this should cause the column to have numbers between 0 and 300
6:write column 3 of array to 2nd column of the new array
7:write column 4 of array to the end of 2nd column of the new array
8:write column 5 of array to the end of 2nd column of the new array
9:delete excess array space
10:write new array to txt file with delimiter of " " (a tab) with the same name as the previous file
I have been looking at this for 6 hours now and although I figured out how to read in a csv file, I was not able to figure out how to call up the individual values for computations.
I won't complain if you give me code but what I really want is an understanding of what I need to do to accomplish this.
View 1 Replies
Mar 13, 2012
I want to make 5 attachment options in that 4 out of the 5 are hidden.but when he clicks "more attachment" link it will show the other 4.Im using ASP.NET with VB?
View 2 Replies
May 24, 2009
I get an error while trying to install a third party Excel add-in [Thomson One Analytics]. Error: "Compile error in hidden module: Main" Microsoft Excel 2003
[Code]...
View 2 Replies
Sep 26, 2011
Is it possible to take an Excel spreadsheet and move some columns around? Basically I receive spreadsheets that need to be re-formatted and have the columns shifted, some also need to be deleted. I have no idea how to go about this, is it even possible? It's always the same columns so it's not like it changes from file to file. I know it probably makes more sense to just create a macro but I thought I'd see what was involved in it anyway.
View 1 Replies
May 17, 2012
I have an excel sheet with one of the columns as name .There are many rows with same name and I wish to mail all the rows with same person name to that person(given there is a column specifying email address).
The following is my 'sending email' code:
CODE:
View 5 Replies
Apr 23, 2012
I am retrieving the data from AD and sending it to th CSV file. but the data is not coming in Column1,column2 and Column3. Can you guys help me with formatting.[code]When i export the data to Excel the 3 fields i am retrieving are merged. Can you guys help me on how to get the data into excel with individual columns?
View 4 Replies
Apr 21, 2010
I wish to modify a pre-existing procedure to import just the first four out of five columns from an Excel .xls file, which may be viewed as a "physical file" on the local hard drive.
[Code]...
View 7 Replies
May 9, 2012
I am creating a WorkSheet from code. I need my columns to word wrap and not run over (see red arrow below). Not really sure how to do it. Tried to set it for the range of columns with no luck. Here's the current output:
Here's where I try to set it:
Protected Sub Button1_Click(sender As Object, e As System.EventArgs) Handles Button1.Click
Dim xlApp As Excel.Application
[code].....
View 2 Replies
Sep 17, 2009
how to open an existing XL file and copy a column of data and then paste it to a column of another existing XL file ?
View 1 Replies
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
View 1 Replies
Mar 26, 2012
I finally got this code to work after hours of toiling:
[Code]...
Now that I figured that out I was going to try and place the data in a specific location. On my application I have a datagridview set up with 4 columns. What I would like to do is put column A of the excel file under the 1st column of the datagridview and column C of the Excel File in the second column of the datagridview.
[Code]...
View 2 Replies
Jun 2, 2011
What is wrong with this, it throws a debug error.[code]...
View 3 Replies
Mar 23, 2012
I fought through a good amount of this and have gotten to the point where I can sort my arrays. What I need to do now is take the following code and sort the elements in descending order instead of ascending order. I don't know how to do that with the two arguments in the code:
Dim Cols(3) As Int16
Cols(0) = ColumnNumber + 1
Cols(1) = ColumnNumber + 2
Cols(2) = ColumnNumber + 3
[Code].....
View 1 Replies
Sep 7, 2010
I'm using a reportviewer in VB.NET. When the user exports a report to Excel some of the columns get merged and hidden. is it possible to fix this? Maybe by manipulating some code or a setting somewhere..?
View 1 Replies
