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  • to get columns from Excel files using Apache POI??

    - by posdef
    Hi, In order to do some statistical analysis I need to extract values in a column of an Excel sheet. I have been using the Apache POI package to read from Excel files, and it works fine when one needs to iterate over rows. However I couldn't find anything about getting columns neither in the API (link text) nor through google searching. As I need to get max and min values of different columns and generate random numbers using these values, so without picking up individual columns, the only other option is to iterate over rows and columns to get the values and compare one by one, which doesn't sound all that time-efficient. Any ideas on how to tackle this problem? Thanks,

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  • Is it possible to create an efficient UDF alternative to Excel's CUBEVALUE function?

    - by bright
    We'd like to create a simpler alternative to Excel's CUBEVALUE function for retrieving data from an OLAP server. The details aren't critical, but briefly, our function will "know" the source connection and accept a very simple ticker-like parameter and a date, in place of CUBEVALUE's MDX-style parameters. This is for internal use within our firm, just FYI. However, Excel has optimized CUBEVALUE so that calls to the OLAP server are batched. Question: Is there a way to code the new function so that it can similarly batch calls rather than issue a separate query for each cell?

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  • How to open an Excel file in C#?

    - by tksy
    I am trying to convert some VBA code to C#. I am new to C#. Currently I am trying to open an Excel file from a folder and if it does not exist then create it. I am trying something like the following. How can I make it work? Excel.Application objexcel; Excel.Workbook wbexcel; bool wbexists; Excel.Worksheet objsht; Excel.Range objrange; objexcel = new Excel.Application(); if (Directory("C:\\csharp\\error report1.xls") = "") { wbexcel.NewSheet(); } else { wbexcel.Open("C:\\csharp\\error report1.xls"); objsht = ("sheet1"); } objsht.Activate();

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  • saving dataset in excel and allow user to download it in the client machine.

    - by Jebli
    Hi, I am developing an application where i want i am displaying a dataset in the datagrid view for the user.Now the user wants to download the data in the datagridview in an excel format.How can i do it ? 1) should i write the dataset in the excel and save it the server before the user download the file ? 2) Can i use a hyper link and set the path of the file that is saved in the server to the hyper link hRef property , so that the user can click and download the file ? I am using C# ASP.net 2.0 Please help !

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  • Advantage to parsing Excel Spreadsheet data vs. CSV?

    - by john
    I have tabulated data in an Excel spreadsheet (file size will likely never be larger than 1 mb). I want to use PHP to parse the data and insert in to a MySQL database. Is there any advantage to keeping the file as an .xls/.xlsx and parsing it using a PHP Excel Parsing Library? If so, what are some good libraries to use? Obviuously, I can save the .xls/.xlsx as a CSV and handle the file that way. Thanks!

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  • How to speed up dumping a DataTable into an Excel worksheet?

    - by AngryHacker
    I have the following routine that dumps a DataTable into an Excel worksheet. private void RenderDataTableOnXlSheet(DataTable dt, Excel.Worksheet xlWk, string [] columnNames, string [] fieldNames) { // render the column names (e.g. headers) for (int i = 0; i < columnNames.Length; i++) xlWk.Cells[1, i + 1] = columnNames[i]; // render the data for (int i = 0; i < fieldNames.Length; i++) { for (int j = 0; j < dt.Rows.Count; j++) { xlWk.Cells[j + 2, i + 1] = dt.Rows[j][fieldNames[i]].ToString(); } } } For whatever reason, dumping DataTable of 25 columns and 400 rows takes about 10-15 seconds on my relatively modern PC. Takes even longer testers' machines. Is there anything I can do to speed up this code? Or is interop just inherently slow?

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  • How to stop Excel from firing Worksheet_Change before Workbook_BeforeSave?

    - by Camil Bancioiu
    Update: Issue Resolved A colleague of mine was changing a cell during Workbook_BeforeSave() without disabling events, therefore triggering Worksheet_Change(). Yes, silly, but at least it's our fault, not Excel's I've noticed that whenever I hit Ctrl+S in Excel, the Worksheet_Change() is fired before Workbook_BeforeSave(). Is it possible to supress this behaviour using VBA code, but without supressing all events (i.e. without Application.EnableEvents = false)? This happens regardless of what I'm doing. I've read about someone having a similar issue with ComboBoxes, but I'm not editing ComboBoxes, yet Worksheet_Change() fires always before saving. Any ideas? I'm only trying to figure out how to bypass some code inside Worksheet_Change() when the document is saved, because that code is only supposed to be executed when the user actually changes something, not when the workbook is saved. Saving is by no means changing...

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  • How to store data to Excel from DataSet without going cell-by-cell?

    - by Jason Barnwell
    Duplicate of: What’s the simplest way to import a System.Data.DataSet into Excel? Using c# under VS2008, we can create an excel app, workbook, and then worksheet fine by doing this: Application excelApp = new Application(); Workbook excelWb = excelApp.Workbooks.Add(template); Worksheet excelWs = (Worksheet)this.Application.ActiveSheet; Then we can access each cell by "excelWs.Cells[i,j]" and write/save without problems. However with large numbers of rows/columns, we are expecting a loss in efficiency. Is there a way to "data bind" from a DataSet object into the worksheet without using the cell-by-cell approach? Most of the methods we have seen at some point revert to the cell-by-cell approach. Thanks for any suggestions.

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  • How to Export a Table to Excel File at Client Side with JQuery?

    - by kamaci
    I use java, jQuery and jsp at my web application. I want to learn that how can I import the values at my table to excel file with JQuery at client side. There are many examples and suggestions even at stackoverflow.com but I saw the solutions as server side as like Apache POI or something like that. There is a datable plug-in: http://www.datatables.net/ at that plug-in it can be done to export the table data into a excel file I think at client side and so I am searching for a solution as like that.

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  • Merge two excel files (with the condition)

    - by chennai
    I have a form in access in which i have two text boxes which accepts two excel files with a button click. now when i click generate button an output excel file has to be generated or created based on the following conditions In one excel file i have these data : id code country count t100 gb123 india 3123 t100 gh125 UK 1258 t123 ytr15 USA 1111 t123 gb123 Germany 100 t145 gh575 india 99 t458 yt777 USA 90 In another excel file i have these data country location India delhi UK london USA wallstreet Germany frankfurt The rows can be more than what i mentioned here ... now i want to merge them according to the country. In book1 excel file for example wherever you find country india the location field delhi has to be inserted right beside the country field and it has to be done for each and every country which i mentioned in book2 excel file and the output file has to be sorted according to the count at last. For example the output file should like this id code country count Location t100 gb123 india 3123 delhi t100 gh125 UK 1258 london t123 ytr15 USA 1111 wallstreet t123 gb123 Germany 100 frankfrt t145 gh575 india 99 delhi t458 yt777 USA 90 wallstreet

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  • sybase bcp import fails

    - by chromeplatedbanana
    We're trying to export some tables from our production database to our test database using bcp. The bcp export seems to work fine, but the import always fails with a data type error (see below). We tested on our test database exporting the table content to a file, then importing it in again immediately, but that failed too. e.g., bcp TABLENAME out ~/tempfile -S servername -U username generates a file as expected. If we use -c option then the number of lines is as expected. However, bcp TABLENAME in ~/tempfile -S servername -U username fails with CTLIB Message: - L0/0D/S0/N0/0/0: blk_int(): blk_layer: CT library error: Cannot find an equivalent CS_TYPE for this TDS data type 49 blk_init failed. We get this whenever we try to copy into TABLENAME, whether from the production or test table dump file. I don't understand why export and import for the same TABLENAME is generating a data type error. What am I doing wrong here? Thanks

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  • Powershell import-module webadministration

    - by David
    Every time I execute this command invoke-command -computername REMOTEPC -scriptblock { import-module WebAdministration; new-item "$env:systemdrive\inetpub\testsite" -type directory; New-WebSite -Name TestSite -Port 81 -PhysicalPath "$env:systemdrive\inetpub\testsite" } I get the following error Invalid class string (Exception from HRESULT: 0x800401F3 (CO_E_CLASSSTRING)) + CategoryInfo : NotSpecified: (:) [Get-ChildItem], COMException + FullyQualifiedErrorId : System.Runtime.InteropServices.COMException,Microsoft.PowerShell.Commands.GetChildItemCommand The website is created successfully as far as I can see. The following command gives the same error when enumerating the testsite Invoke-Command -computername REMOTEPC { import-module webadministration; dir -path IIS:\Sites\ } Name ID State Physical Path Bindings PSComputerName Default Web Site 1 Started http *:80: REMOTEPC Invalid class string (Exception from HRESULT: 0x800401F3 (CO_E_CLASSSTRING)) + CategoryInfo : NotSpecified: (:) [Get-ChildItem], COMException + FullyQualifiedErrorId : System.Runtime.InteropServices.COMException,Microsoft.PowerShell.Commands.GetChildItemCo mmand Any suggestions would be appreciated

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  • How do I fill in data using index, match, etc. in MS Excel?

    - by MorningHacker
    I have data formatted like so. 1, 2, 3, 4, null, null, null A, B, C, D, null, null, null 1, null, null, 4, 5, 6, 7 A, null, null, D, 8, 9, 10 I want to copy the data from row three into the missing "null" cells in row one, because there is a match on cell values one and four upon comparing row one and row three. So far I have the following. =INDEX(A2:AE346, MATCH(A351&F351&G351, A2:A346&F2:F346&G2:G346, 0), 2) Here is a spreadsheet with some sample data so you can test your formulas.

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  • How to lookup an IP address in an Excel spreadsheet?

    - by Kevin Williams
    I am working with a decent sized spreadsheet of domains and server names. Another user of the spreadsheet needs the IP address for each of the DNS entries on the worksheet. Instead of manually adding and then having to maintain this list I was hoping there was an easy way to do an IPAddress lookup to display the IP address in a cell. I've seen some VBScripts that call gethostbyname, e.g.: Declare Function GetHostByName Lib "wsock32.dll" Alias "gethostbyname" (ByVal Host As String) As Long But I'm not a VB expert so I'm not sure if this is the right way to go. Any advice/links would be appreciated! also if this is a question better suited for Stack Overflow - let me know, I'm new here.

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  • Excel 2007 - How can I write "use this cell" or IF BLANK "use this cell"?

    - by Mike
    I am trying to show the Days between NOW() and the dates (dd/mm/yy) in, either Column B or Column C - depending which one is NOT blank A B C 29/03/10 01/04/10 29/03/10 02/04/10 29/03/10 30/04/10 29/03/10 31/03/10 29/03/10 03/04/10 I currently have the formaul below and then drag it down, but it obviously means I need to go back and amend the 'errors'. =DAYS360(A1,B1) I always forget how to nest this type of NULL/BLANK thing so any help, or pointers to remember would be appreciated. Thanks Mike

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  • Powershell import-module webadministration

    - by David
    Every time I execute this command invoke-command -computername REMOTEPC -scriptblock { import-module WebAdministration; new-item "$env:systemdrive\inetpub\testsite" -type directory; New-WebSite -Name TestSite -Port 81 -PhysicalPath "$env:systemdrive\inetpub\testsite" } I get the following error Invalid class string (Exception from HRESULT: 0x800401F3 (CO_E_CLASSSTRING)) + CategoryInfo : NotSpecified: (:) [Get-ChildItem], COMException + FullyQualifiedErrorId : System.Runtime.InteropServices.COMException,Microsoft.PowerShell.Commands.GetChildItemCommand The website is created successfully as far as I can see. The following command gives the same error when enumerating the testsite Invoke-Command -computername REMOTEPC { import-module webadministration; dir -path IIS:\Sites\ } Name ID State Physical Path Bindings PSComputerName Default Web Site 1 Started http *:80: REMOTEPC Invalid class string (Exception from HRESULT: 0x800401F3 (CO_E_CLASSSTRING)) + CategoryInfo : NotSpecified: (:) [Get-ChildItem], COMException + FullyQualifiedErrorId : System.Runtime.InteropServices.COMException,Microsoft.PowerShell.Commands.GetChildItemCo mmand Any suggestions would be appreciated

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  • EXCEL generate a character in one column of a row, only if other columns in the same row are not bl

    - by Simon
    My speadsheet keeps track of when patients leave a specific floor of the hospital. There are columns in which where each patient goes is documented (1 column for "home", another column for "rehab facility", another for "other floor", etc.). Only when the patient leaves the hospital altogether does it count as a discharge, in which case the “discharge” column needs to have something in it. What formula can I use to generate, say, an "x" in the "discharge" column if certain "where they went" columns in the same row contain something, but not if there is nothing in any of them? Currently, to accomplish this I am using =IF(OR(M30,N30,O30,P30,Q30,R30,S30),"x") in row 3 of the "discharge" column (rows 1 and 2 are headings), and I have used "fill down" in all subsequent rows. To suppress the "FALSE" this formula yields when the condition is not true, I have applied conditonal formatting to the entire column that if the value=FALSE then the font is white (same colour as background). Is there a more efficient, elegant and idiot-proof way of doing this? The conditional formatting of text colour could potentially confuse everyone but the person who built the spreadsheet (me).

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  • how to sum the amount of cells with the same number in a column - Microsoft Excel 2010

    - by jerlebrink
    My english isn't that good, I hope you understand what I wan't to accomplish I have a column (A) with different zip codes ( total of 3583 rows). I need a formula/function to go through each cell and the come up with sum of how many instances (column B) there are of the same zip code (column C).There are probably more than hundred different zip codes so I can't do it manually. Thanks in advance.

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  • Getting error when using Oracle imp command to import dmp file

    - by blizz
    I am importing a dmp file using the following command: imp user/pass file=file.dmp log=logfile.log full=y ignore=y destroy=y I get the following errors: . . importing table "MESSAGE_BOARD" IMP-00058: ORACLE error 22993 encountered ORA-22993: specified input amount is greater than actual source amount IMP-00028: partial import of previous table rolled back: 219638 rows rolled back . . importing table "MESSAGE_BOARD_ARCHIVES" IMP-00058: ORACLE error 22993 encountered ORA-22993: specified input amount is greater than actual source amount IMP-00028: partial import of previous table rolled back: 2477960 rows rolled back I have tried increasing the tablespace size and adding a second datafile to no avail. I'm a total newb at Oracle so any help will be appreciated. Googled this for hours and still can't come up with a solution. Thanks!

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  • How can I use structured references to a column in an Excel macro?

    - by Eshwar
    Here's an example that will explain things: Sheets("Plot Data July").Select ActiveSheet.ListObjects("tPDJuly").Range.AutoFilter Field:=2 ActiveSheet.ListObjects("tPDJuly").Range.AutoFilter Field:=4 So as you can see above, Field:=2 is a relative reference to the second field in the table called "tPDJuly". So now if I add more columns, this number does not get updated. The field is actually called "Grade" in the table. So is there a way of coding this so that no matter which column it is in, "Grade" is always updated? I suppose one solution is that we add a line that find what is the column number for "Grade"?

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