Export DataSet To Multiple Excel Sheets And Download Into A Zip File Using Asp.net C#?
Jan 21, 2011how to Export DataSet to Multiple Excel Sheets and download those file into a zip in C# asp.net?
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Merging Multiple Sheets From Multiple Workbooks Into New Sheets In A Single Work Book
Dec 13, 2011I am looking for the code to consolidate multiple .xls sheets from within multiple work books in a file all containing the same format of information. Each sheet needs to be coppied to a new sheet within a single work book.
Once in a single sheet I need to then copy data from a range of fields into one consolidated sheet.
VS 2008 - Most Optimal Or Efficient Way To Export A Dataset To An Excel File
Oct 29, 2011I am looking for some guidance with the most optimal or efficient way to export a dataset to an excel file. I have searched the forums and found a number of methods to do this. However, the code I am currently using is very inefficient as it is itterating through the rows and columns to create the excel file. The app I am working on needs to be able to create 50 or so excel files each with 500+ rows and 40-50 columns. This method seems to inefficient for my use.
I have seen some code out there to use an ODBC call to excel to create the file. I am wondering if someone can verify that this is the most efficient way to meet my goal. It should also be noted that after the export I will want to do some basic formatting of the sheet. Adding bold column headers, autofilters, and autofit all columns.
VS 02/03 - Using ODBC To Export Tables From A Dataset To Excel File Without Auto-formatting
Jan 22, 2010I'm using ODBC to export tables from a dataset to an Excel file without auto-formatting Excel or even needing to have Excel installed on the users PC. This works great but I just had a request to autosize the columns and make the header line bold. The only way I know of doing this is to fully automate Excel to control the row/column/cell formatting. Does anyone know a way of doing this without auto-formatting Excel?
View 2 RepliesRead All Cells / In All Sheets Of An Excel File
Jan 22, 2009I wanna read all cells of all sheets/pages in my excel file and just show the text content of each cell. [code]
1. How can I read cells inside the While?
2. My select command only selects Sheet1, how can I select ALL sheets?
Read All Cells In All Sheets Of An Excel File?
Jan 22, 2009I wanna read all cells of all sheets/pages in my excel file and just show the text content of each cell.I have written my code but have 2 problems:
Dim ExcelConnection As New OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:Excel.xls;Extended Properties=Excel 8.0;") ExcelConnection.Open() Dim MyCommands As New OleDbCommand("SELECT * FROM [Sheet1$]", ExcelConnection)
[code]....
1. How can I read cells inside the While?
2. My select command only selects Sheet1, how can I select ALL sheets?
Export Dataset To Excel?
Mar 27, 2009I have the following bit of code that I have used in the past to export a DataSet generated from the Stored Procedure 'HISTORICAL_COSTS' to Excel.[code]...
View 2 RepliesExport To Excel Sheet From Dataset?
Oct 29, 2009how to access the dataset if it is in another page so that i could export it to the excel sheet....and
View 6 RepliesVS 2005 Export Dataset To Excel?
Sep 9, 2011Export data from Dataset with multiple table to excel sheet
View 2 RepliesExport DataSet To Existing Excel Spreadsheet?
Nov 30, 2007I am looking for an example to export the data from a dataset to an existing excel speadsheet in vb.net 2005?
View 6 RepliesExport DataSet To Existing Excel Worksheet
Nov 4, 2010VB2005. I have several DataSets that I create or grab from an external source. One example is
Dim sql As String = "SELECT TOP 30 * FROM myTable" & vbCrLf & _
"WHERE Area='YY' AND CarNum='734EP' " & _
"ORDER BY ProcDate ASC;"
Dim da As New OleDbDataAdapter(sql, myOLEDBconn)
'create a dataset and fill it with the returned data.
Dim ds As New DataSet
da.Fill(ds, "MyData")
Once I have these DataSets I then have to pump them into a specific worksheet in an existing Excel2007 workbook. The connection and interaction with Excel and the workbook/worksheet is already established and that works. But I am stuck in exporting the DataSets
into the specific worksheet.
Note that I have already scoured the web and MS Community site and all code that I have found so far iterates through each and every row and column of the DataSet and then adds that to the worksheet in a cell by cell manner. This is fine and in testing that works. But there has got to be a better way to do this. For even a moderate sized DataSet the exporting just takes a long time. 25 records with 15 columns takes about 10 to 15 seconds.
I've also been experimenting with some scratch code I found that converts the DataSet to an ADODB Recordset and then uses the xlwksht.Cells.CopyFromRecordset function to export it in one fell swoop. I haven't got this one to work just right but it seems in the end it also does an iteration through each and every record and field to convert to the ADODB recordset.
Export Dataset Content To Excel Sheet In Program?
Aug 31, 2009I want to export dataset content using VB in one shot as i'm exporting crystal report
View 1 RepliesAsp.net Using Oledb To Export Excel File Returns Empty Excel File
Feb 24, 2010I am using asp.net oledb to export information to excel file. I encounter problems when the information to export becomes too big, in this case the code I have given below, the excel file generated becomes an empty spreadsheet.If I changed the loop to 1123 for insertion of the rows. The generated excel file is fine, 1125 rows, and 4 columns shown.A test program in windows form is also working fine regardless of how many rows.[code]I couldn't find a solution to my problem as well. What I did eventually was to run the process using another separate windows service. The code works perfectly fine running from a windows form or service program, but not asp.net, not sure why.
View 1 RepliesExport To Excel Excel Could Not Open The File Because The File Format Is Not Valid?
May 8, 2012I have this issue that occurs with me and driving me crazy i have a report that contains thousands of records and i need to export it to excel , but the excel normal extension .xls
is showing missing records at the end of the file , so i save my file as an .xlsx extension it saves correctly but when i open the file it generates an error
"Excel cannot open the file '<var>filename</var>.xlsx' because the file format for the file extension is not valid. Verify that the file has not been corrupted and that the file extension matches the format of the file."but when i test the file i drag it and open it in an empty notepad all the records shows up correctly
VS 2008 Export Datatables To Excel With Multiple Sheet Names?
Sep 17, 2010I'm creating an application that will export several datatables into a single Excelspreadsheet, but on different sheet names. How can I do that?
View 2 RepliesExport A XML File From A Dataset?
Aug 25, 2010I want to create a web application,specifically an e-shop and I want to be able to export a xml file from a dataset with products.
Is this feasible with visual studio and vb.NET? If so
Export Dataset To Csv File?
Apr 3, 2007How would you export a dataset to a csv file?
View 4 RepliesExport Dataset To Txt File?
Nov 24, 2009I have a form which contains a datagridview which lists items.I have a button that will export all of my dataset to a text file:-
Dim str As New System.Text.StringBuilder()
For Each dr As DataRow In Me.ContactsDataSet.Contacts
For Each field As Object In dr.ItemArray
str.Append(field.ToString & ",")
[code]....
How can I export only the rows that I select (if I setup a checkbox column in my datagridview, I want be be able to only export the items that are checked)
Export An Image Into An Excel File Without Excel Installed?
Oct 7, 2011I need to export Chart(image) and grid (tabular) row data into excel file. I can not use automation because Office tools are not installed in my server. I've found a bunch of free/proprietary tools like:
NPOI
MyXLS
ExcelWriter (softartisans)
JetCell (DevTrio)
Aspose.Cells (Aspose)
But I do not know which one is better for my needs. I need to export not only grid row data but also Chart (image), thats why I am thinking about.
Download Multiple File + Progressbar But Cant Download File
Nov 10, 2011i try to download multiple file + progressbar.. but its seems nothing happened and the file is not download.. my program just function like.. when the file was error.. it will download the latest file from webhost..
[code]...
Excel Sheets In Vs 2008?
Jan 25, 2011I'm trying to make a program that will write and read excel docs in vs 2008 with these following editable items date, time, and results using text boxes and combo boxes but I can't figure out how to get the excel part to work in it. How do I add this in visual studio 2008? what component do I have to add to my program to veiw and edit excel spread sheets?
View 1 RepliesDisplay Data Fro DGV To Excel Sheets
Feb 3, 2012This code to display data from DGV to Excel Sheet. it will display them in the first row of Excel . how can I make it Display them in the second row or third row? [code]
View 4 RepliesImplement Reporting With Excel Sheets?
Jun 28, 2011I need to implement reporting.. with Excel sheets and need a lot of heavy excel workings..So..I have two options.. C#.net or VB.net !!What would be more closer to EXCEL ?What would provide me more excel api's and more control?
View 2 RepliesImport Excel Sheets To SQL Serve?
Jun 23, 2011Am trying to import Excel Sheets to SQL Server, how ever the same code is working well for MS Access, here is the code which i am using
Dim cn As New OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + ImportWizard.openFD.FileName)
'cn.Open()
[Code]....
Drag&drop In VisualStudioExpress2010 Using Excel Sheets
Feb 21, 2011I am experienced VBA programmer and I want to expand into Visual Studio 2010 (Express version at the moment, bacause it's free). What I need is some code samples to get me started. Possibly showing all relevant aspects. Here goes:
A form has products as icons (in ListView?) - ordering is done by drag and drop onto a basket Products will have color and size - selection is done by two TabStrips or similar feature ( if TabStrip control is still available in ViStuEx2010)Database might be Excel sheets if possible, but other free options are OK (if Excel can cooperate with ViStuEx2010). How about XML residing on the Web? SkyDrive?
Menu and starter of the application might be from Excel too - but I'll be glad to learn newer ways - code needed for both options: when Excel is a starter and compiled ViStuEx app. is a starter.
I imagine that many people write order taking applications using drag and drop interface.
Get The Excel Application/Workbooks/Sheets Events?
Dec 16, 2010When working with Excel in this context, is there a way to get the Excel Application/Workbooks/Sheets events?
Imports System.Runtime.InteropServices
Public Class Form1
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
If Process.GetProcessesByName("Excel").Count <> 0 Then
[code]....
Hiding Grid Lines From Excel Sheets?
Jan 15, 2012hiding gridlines in excel sheet using VB.NET.I need to hide gridlines while exporting to excel from VB.NET.
View 3 RepliesReading Large Excel Files Or Sheets?
Feb 10, 2010I'm tryng to read an excel sheet that has more than 255 cell. I'm using the following code:
Dim MyConnection As System.Data.OleDb.OleDbConnection
Dim MyDataSet As New System.Data.DataSet
Dim connectionString As String = ConfigurationManager.ConnectionStrings("PCOConnectionString2").ConnectionString
[Code].....
this code throws me an error that indicates me that there are too many rows to read. I found, seaching through forums, that it can't be more that 255 cells on the sheet i'm reading.
How can i read this sheet that has over 500 cells?
Asp.net - Add An "Export To Excel" Button To A Webpage To Export Gridview To Excel In Webapplication
Dec 9, 2010i built a patient management software for a clinic and i need to export patiet list from ASP.net grid view to excel file my question is:Is there a way to export gridview to excel i am using vb.net and visual web developer 2010 i store datasource from advanced search page into a session and redirect to result page
here is the code of result page
[Code]...
Asp.net - Export To Excel File As .zip To Reduce File Size - Compress Xmldata Before Sending It To The Client?
Jul 8, 2010I like to compress the xmldata before the data is provided to the client as an excel file. I am trying to compress and deliver it as a .zip file. its not working Here's my code below. I tried compressing it, converting it to bytes etc etc. The issue with below code is, the XSL transformation is not happening properly and the output excel file is raw xml with some .net exception at the end. (that's what I see on the .xls file that's downloaded at the end) Before I started working on compression my below code was working fine that gives properly formatted excel file from the xml input. the excel file is so nice you can't even tell it was from XML.
[Code]...