VS 2008 Coloring Excel Sheet - Efficient Way In Order To Provide The Colored Excel Output?
Dec 19, 2011
I have to provide an Excel file as an output. I have to color some of lines and make them bold.The input is based on a dynamic list (in memory) and it also could be based on CSV file that I'm already provide today (based on the same dynamic list).I'm wondering what would be the most efficient way (in terms of performance) in order to provide the colored Excel output?Should I export directly from dynamic list into Excel - or - Should I export from CSV into Excel ?
I am trying to create double and number format cells in excel using NPOI library. I used code like Dim cell As HSSFCell = row.CreateCell(j) cell.SetCellValue(Double.Parse(dr(col).ToString)) In excel numbers are aligning right but when I check format it is showing in "General" then I changed my code to like below
I 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.
So I've got this Excel sheet of employees which have all the information about them. I'm trying to import this info into AD, but in order to do that I need to get the username for these users as well. And I would like vba code or vb.net code that basically takes the value of every row in column D and looks for it in AD and returns the username and adds it to column A. Would something like this be possible?
i need to generate an excel sheet from an excel template which contains drop down lists. I need to use the template and populate the with data from datbase and select the appropriate value from the drop down lists and generate the new excel sheet.
Do you know how can i import a sheet from Excel to Visual Basic 2008, and then save the informations in Access? I know how to save the informations in Access, but i don't know how to import from Excel.
I am trying to create a small program to use at my company. It will be used to enter in any customer information on one tab and then the next tab will be used to enter in all the products that we are returning. I would like to use an excel sheet (if there's a better way let me know) to be able to enter in multiple parts but I can't figure out how to get an excel sheet or some kind of editable table onto my form
I'm migrating to vb.net 2008 from long experience of vb6. I managed to create an Excel Sheet as an object, write data and save. How though, do I load an already created Excel file? The following code does a save, but what do I need to load a file?
ExcelSheet.SaveAs("C:UsersKochanskiDocumentsVisual Studio 2008ProjectsExcel TricksTEST.XLS")
[code] objExcelAppDataSheet is the excel application's object and strTemplatePath is the path of the excel file.This excel file is like a template that i am using in my application. In this file some cells are merged. After copying to the new sheet the formatting of the sheet does not remain same. Columns sizes are changing. Why this problems occurs? Is this MS office versions issue??
I have Visual Studio 2008/VB application that opens Excel workbooks, reads all the sheets, and writes some data to a SQL database. I need an easy way to determine if a sheet has any data on it. By default most books has three sheets (Sheet1, Sheet2, Sheet3) and usually, but not always, my books have data only on sheet1. But i need to look at alal sheets to check for the existence of data. I know I can do a nested for loop from 1 to columns.count and rows.count, but that would take a good bit of time since those numbers usually are something like 256 and 65K.
Is ther some easy way to determine if there is any data on the sheet? If there is, is there an easy way to find the "first" cell with data in it?
I'm trying to build an application wich shows some info about a specific user. The info is stored in an Excell sheet.
What I want to do is this: I'll have the user fill a field with in example the logon name. Now I want the application to search the Excell sheet for that record and list the info into seperate fields on my form.
I got the following code snippet, but it shows errors in 3 places, the error is type "item name" not defined. I underlined and made bold where the errors show up below'Firstly retrieve data from Access database
Dim con As OleDb.OleDbConnection = New OleDb.OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=E:myDB.mdb") con.Open()
importing excel sheet data into a sql table(MS SQL 2008) via a datagrid and would like receive as much advise as possible, in order to learn more on this...
Dim DtSet As System.Data.DataSet Dim MyCommand As System.Data.OleDb.OleDbDataAdapter MyConnection = New
[Code]....
I am using this to connect my datagrid to the excel sheet and able to view the data sheet, but from here on.. I am not very sure on how to go about to transferring the excelsheet into a sql table.
I am trying to figure out how to dispay and print certain cells from an excel sheet into a vb program. i am not sure on where to start. It is a large spreadsheet but i need the ability to call a certain persons name and the information for that person then print it out.
my VB.Net desktop app writes to an Excel file. I need to set the style to a row. I can read a style of one row, but am unable to set the style in another.
I am working on an excel add-in. Currently I have a couple of forms that grabs info from excel, processes and pastes data back into excel.My problem occurs after my form closes (this leaves excel and one other MDI form still open). I need my excel sheet to come to the front for users to view and edit. My MDI form just stays on top even though I just edited the excel doc. I have tried everything I can think of using:
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
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Try For Each row As DataGridViewRow In Me.DataGridView2.Rows FirstString = row.Cells(0).Value.ToString
Basically, i have to write a small application that just writes in certain cells of a set page of an excel sheet, the sheet will always be the same layout.
Using vb.net 2008 to create an Excel ss. I am trying to add a new sheet and it does but it puts it out of order. It puts it as the first sheet. I need it as the last one ( furthest to the right).
Code: With xlWorkBook .Sheets("Sheet1").Select() .Sheets("Sheet1").Name = "config"
I have created a connection to an excel file. This is the code i created to select the data in the excel. But i want to make the [sheet1$] to be dynamic, which means it will get the sheet name depending on what is in the excel workbook. This workbook has only one sheet. This is to make sure that there will be no error when the sheet names are different. [code]
I am using VB 2008 to do some excel automation and I am stuck.I am trying to make the cell alignment to be left-top. When I programmatically insert a new worksheet, the alignment defaults to "left-bottom".
i have installed SQL server Express Edition 2005 by using my application i am saving data in tables which is created in SQL Server so that i have to copy in that data in to excel file
does anyone know how to transfer all the data's of datagrid to excel sheet? data's in my datagrid is not all come from my database/recordset... i have two columns of data's coming from textbox.
I have data exported from DataGridview to Excel Sheet but I have problem viewing the excel sheet until I log out of the Application completely. I have these code to release the link. What am I doing wrong?
'Save the workbook and quit Excel. oBook.SaveAs(sSampleFolder & WrkSht) oSheet = Nothing
I am sending some data from a datagridview to a Excel sheet.That works.But I have a problem with Date's , in the datagridview is 05-12-2012.When i put it in a new excelsheet it is 05-12-2012 00:00.I found something for changing the format of Date in a Excel cel.[code]But I need , 05-12-2012 What do I put after NumberFormat? I want to do it by code and not in the Excel sheet
