I am in the process of converting VB6 in to Dot.Net 10. Phew. Fast way to learn a language
Currow value=24 in this instance
Arsheet2b = ObjExcelB.Sheets(1).Range("A2:L" & curRow).value
<error>
System.InvalidCastException was unhandled
Message=Unable to cast object of type 'System.Object[,]' to type 'System.String[]'.
</error>
I can restrict the sheet from A1:A24 (contains 2010) and I get the same error.
at the moment I have a small application and need to take information from an object and display it into an excel file, using the Microsoft.office.interop class I've been able to write to the file, and it shows one by one the records being added, however about once every 3 times I try it, the spreadsheet stops filling somewhere between the 300th and 600th record, I have 6,000 in total and it's not breaking every time, I put a check after it finishes to see whether the last record is filled in but the code never reaches that point and I'm unsure of what's happening I also don't know how to debug the problem as it'd mean going through 6,000 loops to check for it stopping... which might not even happen?
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i what to make spread sheet program like excel and i what it to be able read spread sheets and create them
View 1 RepliesI have a problem with farpoint spread sheet, that while loading the data into the spread sheet, the sheet refreshes each time a value is set.
I have large number of rows and columns so, the sheet take quite large time till loading.
any idea how to disable the refresh and enable it again after the data is completely loaded.
I want to transfer not EXPORT, all the datas from a table to a Excell Spread sheet thru vb.Fir eg Table name is Lab1 have 2 columns.
Col1 = Name
Col2 = Age
I want to write all the datas to Excell as in:
Name Age
Tom 29
Sally 38
Sam 60
I have a psychology experiment that has users respond to specific text or pictures by pressing either a button for "similar" or a button for "opposite" and then the program records the time from the presentation of the stimuli to the time they press one of the buttons as the latency. I have the information ans some other data successfully exporting to a text document but would like to have just the latency data also go into an excel spreadsheet for easier analysis. Here is the code for one of my buttons that currently writes to the text document:
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I have loaded a .TXT file into an array, and want to display each of the posts in the array in a grid.[code]...
View 1 Repliesim looking for the method how can i copy from original sheet to my new sheet.
View 3 Replies[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??
View 2 RepliesI need a code to read a omr sheet without using a specific omr sheet reader. i want to use normal scanner for this.
View 2 Repliesi developing a application in vb.net using third party tool Farpoint Spread control i need to set the position of spread while we enter in another spread cell?
View 1 RepliesMulticolumn Combo In Farpoint Spread
View 1 RepliesI'm looking to sell some Applications i have made. What's the best way i can protect my applications from being spread around easily? I know there's no Sure-fire way of protecting my App.. but there must be a good program or something that will give me a helping hand.
View 1 RepliesI need to copy data using Vb.net if possible from one excel spreadworbook to another and place the data into the correct columns in the existing excel spreadsheet. The column titles of the spreadsheets match up, I have several templates I need to place data into and the order of the columns is different in each template so I need a way of searching for a column header in the template and then copying the data into that column.
View 1 RepliesMy app is a fairly simple and im sure with the right knowledge this would take 2 minutes.. but sadly iv been at it for hours. So my scenario here is a huge network with 20+ file servers all with data spread out across them it can take hours to find the folder required.
Hence this app.. so it consist of a input box, progress bar and a button, using FileSystemObject I plan to interrogate a directory to see if a folder exists (folder specified by user input) however it need to check multiple directories, in my old app I used a list box which wrote to a text file allowing the user to add additional directories then using if statements proceeded through the servers.. however they have added that much that my IF's have ran out really because i know it should have been a loop
Imports System
Imports System.IO
Public Class Frm_main
Private Const FILE_NAME As String = "C:directories.txt"
Dim objReader As New System.IO.StreamReader(FILE_NAME)
Dim Lines() As String = IO.File.ReadAllLines(FILE_NAME)
Dim Dir As String
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I have a bunch of Excel files full of research data. Everything is strait forward: rows of research categories and columns of research parameters. I want to create a simple search form that allows opening any of the spread sheets that contains the type of data that I specify. For example, I would choose a parameter
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Input a range of numbers and sort them into 6 equal amounts and then having the program tell you which amount the number was put into?
I.e
Input:
1200, 2400, 600, 600, 300, 300, 1200, 1200
Sorted into:
Group A: 2400 = 2400
Group B: 1200 + 1200 = 2400
Group C: 600 + 600 + 300 + 300 + 1200 = 2400
I have an array of people stored in a custom structure array... how can i copy this array to a temp array so that the temp array has all the same values as the original custom array?
View 4 RepliesUsing 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"
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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]
View 10 RepliesJust want to ask how can I use tab control / tab sheet in web form.I have codes in win form and I want to convert it into web form.
View 1 RepliesI 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".
View 3 Repliesi 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
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comapre Two excel sheet using C#?
I am developingreports in thePrintDocument andI emergedasadoubtin the image belowinformation from the PorcentafemProprietário( Percentage /Ownerdoes) notappearCod'sonly33what Iwould like to happen
the limitof this informationwould be 100%.Anyone knowany waytodetract
fromthe informationthat the reportcorrectlyPercentageDisplay/Ownerin
accordancewith its Cod?[code].....
I'm programming a calculation program of an heat exchanger(HX) with the VB2008. I have finished the calculation part and now have some questions about creating its data sheet.In a HX, heat will transfer from a fluid to another, which is cooler than the 1st one. I have these fluids as objects and would like to create a data sheet, that looks like:[code]all parameter in the sheet are calculated and saved as properties in thier fluid's objects. The sheet should be able to see on the MainForm, to print (+ a company's logo) and to export in .xls (with out excel). My question is, which function will help me to do these? the Crystal Report?
View 1 Repliesdoes 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.
View 1 RepliesI 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
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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
View 2 RepliesI looked at some on here and found this:
Public Sub Test()
Dim xlApp As Global.Excel.Application
Dim xlWorkBook As Global.Excel.Workbook
[Code]....