I have this code the exports datagridview from vb.net to ms excel, There should be a total at the end of the table in the ms excel after exporting it but my problem is I can't merge the cells for "Total".
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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]....
I'm using VB.Net's Excel component to read Excel file, but the performance is totally slow, since it has to loop through cells to get values. Reading a file containing one sheet with 1162 rows and 105 columns (which is small size compared to my general requirement) already costs more than 5 minutes.1. I want to ask if any of you have suggestion on reading such an Excel file with better performance, except OleDB, cuz most compies here have vesion problem?2. Is it normal that it tooks a long time for Excel component to read Excel file, or is it that I implement the code in a wrong way?
View 7 RepliesI have a datagridview(DGV) which contains data based on a user selections from a pre-defined dataset
In point form:
User starts program
program builds datatable
user opens file and program read all data from file into the dataset.datatable
user defines the data they want to see
program displays datagrid based on dataset.datatable and user choices. (basically it displays the whole dataset and removes unwanted columns
ecords)
I want to be able to export the datagrid to excel (not sure which method yet). I have tried the excelexporter component i found somewhere on the msdn forums (it exports the data to look exactly like the datagridview) but its painfully slow. It exports something in the region of 100 records per minute. Most of the time, the datagridview can contain anywhere from 3000-32,000 records. As such, at 100 records per minute, the excel generation can take updwards of 50minutes. Unacceptably slow for the purposes of the program.
What do people recommend as the best method to quickly dump the contents of a datagrid into excel. By quickly, im talking at the speed of about 10,000 records per minute. In all honesty, anything over 5000 records per minute will be fast enough, but the quicker the better!
Is there a way of creating a new dataset.datatable that is built of the contents of the datagridview and then building an excel sheet by connecting to the new dataset?
I would like to be able to export to Excel 2000-2003 at a minimum, but if i can do excel 97 as well it won't hurt.
I have a problem in exporting data grid view to excel. The problem is while i export the contents are exporting but the 'column header' is not exporting to excel. can any one give me solution its urgent this the code which im using.[code]
View 5 RepliesI am filling a datagridview with very lengthy results. Roughly 60k rows on average. I am filling them via an oracle database using a table adapter. The records then have a filter placed on them in the datagridview so the results displayed are a bit different.
My problem: I built an export to excel function which populated a dataset and then red through it and wrote to excel. Bad idea with the amount of records I am using. I tried just writing the records straight to a csv file using streamwriter but I don't very much like this way.
My proposal: I would like to fill an array from the datagridview and then be able to dump the array into excel. However I am having some trouble finding examples on creating an array from a datagridview.
I am using Visual Studio 2008 and looking for an efficient and hopefully straightforward approach for exporting data from a DataGridView to Excel. If doable, my preference would be to export the data to Excel without instantiating an Excel application. I found some code on the Microsoft support site that is fairly accessible but the example shows how to export just a few pieces of data. Would someone be able to demonstrate how to modify this code to so that it could be used for large amounts of data (for example, data from a DataGridView).
'Establish a connection to the data source.
Dim sConnectionString As String
sConnectionString = "Provider=Microsoft.Jet.OLEDB.4.0;" & _
[code].....
I have a a DGV with the following fields:
FirstName
LastName
Address
Job
StaffNum
Nationality
DOB
Notes
Picture
FileName
Now my DGV has records in it and I try to export it to Excel File. Now it exports the the Column Names above but none of the records. My code is below.
Dim fs As New IO.StreamWriter("C:exported.xls", False)
fs.WriteLine("<?xml version=""1.0""?>")
fs.WriteLine("<?mso-application progid=""Excel.Sheet""?>")
fs.WriteLine("<ss:Workbook xmlns:ss=""urn:schemas-microsoft-com:office:spreadsheet"">")
fs.WriteLine("<ss:Styles>")
[Code] .....
I got this code from the MSDN forums from a link someone posted. They said they changed IntCol and it worked to incoude the records as well but I cant figure it out. When I hit Export it does prom,pt me to save the file and saves the Names above to excel sheet but none of the records.
I have a datagridview which I would like to be able to export the information to an Excel spreadsheet, and be able to reload the information later on from a specified worksheet. Also, I'd like to avoid using Databases with Access etc because I am aware that some of the machines I'll be deploying the program on do not have Access installed and would not want to have to install it either.
View 7 RepliesI already exporting contents of my datagridview to excel and word but I need to format one of the column of my datagridview. That column is "Amount". In my datagridview, it displays like this "122234". I want to display all the value in that column in this format: "122,234.00". I already tried to format it to number("N") in my datagridview but when I exported it to excel and word, it shows no format.[code]
View 4 RepliesAll solutions I've found to merging cells in a DGV have proved to look hideous when completed...does anyone have any solutions that look neat and are fairly straightforward to implement?
Looking to merge cells above/below each other
eg
LINE 1| x
LINE 2| y
becomes
[Code]...
I need to export the contents of DataGridView into an Excel file. There is lot of discussion which I went thru and leaves me more confused now than before. I am using VS 2010 Express with Office 2007.
In the VB project reference components, I looked for Office components and did not find it there.
i've a datagridview control populated with records from database. i've formatted certain cells of datagridview according to a condition. (i mean i've set the fore color and back color of cell). But when i export these datagridview contents to excel 2003, no cell colors will be appearing.
i'm developing desktop application with vb.net 2008 and excel 2003.
i've a datagridview control populated with records from database.i've formatted certain cells of datagridview according to a condition.(i mean i've set the fore color and back color of cell).But when i export these datagridview contents to excel 2003, no cell colors will be
View 3 RepliesI have a DataGridView that I'm loading into Excel through the use of an ADODB.Recordset. It works fine, except for a column I have that displays the time. Not the current time, but the time when a file was sent. It displays correctly in the DataGridView but displays 12:00 AM for every row in excel. I'm adding it to the DataGridView like this:
View 1 RepliesI 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 RepliesMy 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]...
I�m using VB.Net 2008 application program.I�m using DataGridView. I have a Print Preview option where i need to print the DataGridView.
Quote:
Using "DataGridView1.Rows.Add" i�m adding rows to datagridview.
I�m using this code for Print Preview.
Dim MyDataGridViewPrinter As DataGridViewPrinter
Private Function SetupThePrinting() As Boolean
Dim MyPrintDialog As PrintDialog = New PrintDialog()
[code]....
I'm using VB.Net 2008 application program.I'm using DataGridView. I have a Print Preview option where i need to print the DataGridView.Using "DataGridView1.Rows.Add" i'm adding rows to datagridview.I'm using this code for Print Preview.[code]If you know how i can Save Print Preview inside text file or Excel, please help me.
View 1 RepliesI have an asp:table which I want to exported to excel. One of my fields are alpha numeric and when exported to excel the leading 0s are stripped off. After going through this thread: Validation (CSS 2.0): 'mso-number-format' is not a known CSS property name I would like to use the css method "mso-number-format:@;.But the css is not exported to excel. I just tried to test it with simpler css things like bold font etc but its not getting carried over. I can see that if I surround my asp:Label with tags this change gets carried over to the excel but not the css bold . Other solutions in other thread does not work for me as ="00111" shows up as desired in excel but in the web form it shows up as ="00111" which is not what i want.
View 2 Repliesusing VB.Net 2008 application program.Im using Dat
Code:
Dim MyDataGridViewPrinter As DataGridViewPrinter
Private Function SetupThePrinting() As Boolean
[code].......
I am building an ordering system for my job. The idea is that the customer will put in a stage name for an item. That stage name is then interpreted by the program.The product id and the amount the customer wants to order is placed in a list box on the form. There are a couple of buttons, ADD, REMOVE, CLEAR, and EXPORT. The user input is handled by input boxes. When the user pushes the EXPORT button, excel should open and list out the interpreted product codes with the corresponding amount to order. I can get excel to open, but I can not get excel to display more than one line. It will display the first product, but then it comes up with an unhandled exception.I can not figure out how to get excel to return down a row and display the next product within the list box.
View 6 Repliesi just got 1 question how do u create a (in excel ) variable table (database) inside a function which could be called for filling and reading through "for to next" loop module
View 2 RepliesI got a code that exports datagridview to excel, how can I format the worksheet in excel through coding in vb.net because I have to include a header before the data in the datagridview nd some data that is in my form in vb.net like the values in my labels and textboxes.
Imports System.Data
Imports System.Data.SqlClient
Imports Excel = Microsoft.Office.Interop.Excel
[code].....
I have datagridview and it have 10 columns and 1 row. Here i all the cell values are sameSo I need to merge all cells and the value display in first columns. (Horizandal merging)
View 1 Repliesis it possible that when i retrieve info out from the database and fill it into the datagridview, if the 'ID' column have similar IDs, those of column 'ID' will be merge together?[code]
View 10 RepliesI am unable to export my data into excel.
Dim sqlString As String = "spExportRateProfile" & Session("OfficeNumber") & "," & Session("SalesRepID")
Dim conn As SqlConnection = New SqlConnection(Utils.GetConfigKey("ConnectionStringVimas"))
conn.Open()[code]....
What do I need do after this to export my data to excel?
I am trying to export a datagridview ti excel, but i get an error I do not quite understand.I have made two click-events using two buttons looking like this: [code]Button 1 fills the datagridview and in works, but when I get try button two I get an invalid index error pn the line highlighted in red.
View 2 RepliesI am exporting a datagridveiw to excel, this works fine. As of now there are columns and headers that i needed to add to the excel data that did not exist in the datagridveiw. This also works fine, the data is held in cells a2:f2, now i want to take this data in these columns and filldown to the last filled row of the excel sheet. In this example lets say i have 49 rows of information, i want to take a2:f2 and copy it down to the 49 row of the excel form. Below is the entire code of the export process, i have noted where i need this code to go with , i am not sure if i should just use a for loop, which i have tried to no avail.
[Code]...
I need to export data from a sql table into an existing excel spreadsheet (not create a new one) in Visual Studio 2008.
Here is the code I am using:
Dim SecFileName
As String =
"C: est estfile.xlsx"
[Code]....
I get an error saying the external table is not in the correct format. I assume taht means the existing spreadsheet. But I have verified that I have the same number of fields (i.e. columns) as the spreadsheet I am inserting the data into.
