DataGridView Add Lines From Excel?
May 27, 2012
I am required to make a program for a small company that reads data from an Excel 2010 file. I have no issues reading this data into my DataGridView control and displaying it for the user.
However, one particular column header is titled "Complete", to which the entire column will either have a "Y" or "N" value. What I want to do is to fill the entire data set from the Excel file (I have done this already), but I need to only display those rows that have the "N" marked under the "Complete" row.
I imagine this would require a For...Next loop based off the DataGridView1.RowCount, but I cannot figure out how I would add just one particular row at a time after checking for a "Y" value in that column. I am only familiar with filling the entire DataGridView.
I included a picture of a sample of what this program would look like (this is how the customer wants it), in case my explanation was not enough.
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Jan 15, 2012
hiding gridlines in excel sheet using VB.NET.I need to hide gridlines while exporting to excel from VB.NET.
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Dec 4, 2009
I've done successful updates to Access databases with VB.net code using OleDb lines, with some sample code as follows:
Dim GRDatabase As OleDbConnection = New OleDbConnection("Provider=Microsoft.jet.oledb.4.0;data source=|DataDirectory|OWVGuestRegister.mdb")
Dim GRCommand As OleDbCommand
GRDatabase.Open()
[Code] .....
How to update Excel and Text files the same way?
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Jan 10, 2012
I'm trying to export a datagridview to Excel and open the Excel spreadsheet (not SAVE the worksheet).
Public Sub ExcelRpt(ByVal DgvName As GridView, ByVal url As String)
Dim xlApp As Microsoft.Office.Interop.Excel.Application
Dim xlWorkBook As Microsoft.Office.Interop.Excel.Workbook
Dim xlWorkSheet As Microsoft.Office.Interop.Excel.Worksheet
[code]....
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Aug 11, 2009
Using Excel 2007, is it possible to change the transparency of chart grid lines using VBA or VB.NET?
I have the following code, which throws an exception on the last line[code]...
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Sep 23, 2010
I have a datagridview bound to a datatable and i want to add a line to it. I cannot add al ine to the dgv, because it is bound so i add the line to the datatable using Me.BurdensCRMDataSet.dtlines.Rows.Add() however this seems to add two rows - let me explain a little further: A dgv always seems to have what i would call a 'blank next' row, a blank row at the end of the dgv, which as soon as the user populates with data another blank row appears after that - maintaining this 'blank next' row provides a simple and easy way for users to keep manually adding data to a dgv
This also seems to work fine when the dgv is bound to a datatable, an empty dgv would have 1 row (the 'blank next' row) and the datatable would have 0 rows, each time the user populates the 'blank next' in the dgv it is added to the datatable and a 'blank next row is added to the dgv, so the dgv now has 2 rows and the datatable has 1 - and so on and so forth However, I cannot programatically populate this 'blank next' row on the datatable, because it doesn't exist yet in the datatable, only in the dgv and if I programatically populate it in the dgv it isn't added to the datatable and a 'blank next' row isn't added to the dgv
[Code]....
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Jan 4, 2012
Is it possible to show vertical columns lines for datagridview, also for empty area, as VFP grid,as in image?
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Jul 26, 2011
I have the following code, my employer wants me to reduce the lines of code to do the job.
Private Function getClientSheetNames(Optional ByVal type As String = "all") As List(Of String)
If type = "extra" Then
Return clientExtraSheetNames
End If
[code].....
I am not able to make out how can I cut the lines and have the same functionality !Are there any vb.net construct that can reduce the loc by better implementation ?Can I have a new function to be called from getClientSheetNames and getDevSheetNames that will can implement code resue ?Can I introduce polymorphism in a possible new function ?
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Sep 3, 2009
how to count the lines in textbox1.text (with multiplelines). I don't need to count each character. I only need to count each line from top to bottom in textbox1.text (multiplelines) and I will use Label1 to display the numbers.
example:
1-pauljaones
2-tommyperrry
3-marktoms
4-Jonessmith
5-paulwhite
Obviously this is 5 lines and that's what I need to count.
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Jun 22, 2010
I have written a simple script to get a bunch of lines from a text file (they will be filenames eventually) which are split by new lines and puts each one into an array..
Dim ary() As String
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
If My.Computer.FileSystem.FileExists("C:MenuFiles.txt") Then
[code]....
The only thing I can do for now is either use the substring function to remove the first character from all array values after 0 but I don't like that because it's messy and what if the split "works" as I want it to one one of the lines and knocks of the first character when I don't want it to.
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Dec 12, 2010
I can export DataGridView to Excel.BUT
Private Sub ETE_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ETE.Click
exportToExcel(Me.Registration_FormDataGridView)
[code].....
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Jul 28, 2010
I have data that I'm taking from an Excel sheet with the ultimate goal of displaying in a DataGridView.
Currently I am just going over the UsedRange of excel data and plugging it into a datagridview. This works fine, but can get bogged down when there 100+ rows of data.
I have also toyed with going from excel into a dataset (using the same wasteful method), and as expected it takes about the same time to load the data. Maybe use the XML from the Excel file?
EDIT:
Some Additional Information:
This is a WinForms application and the user will be picking and loading the excel file at run-time.
EDIT
The Return of Some Additional Information:
The Excel file is located on the user's pc. The general assumption is that they will be loading different files each time they use the application. [not sure if this helps, but might be good to know :)]
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Nov 10, 2009
how to add a specific row from datagridview into an excelI have checkboxes in the datagridview. So I need to add only the checked rows into exce
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Nov 15, 2010
How do we create an excel file for each datatable of a dataset ?
I tried some codes I found in the net, they don't seem working, so can someone provide me a tutorial or code that shows how to create an excel file from datagrid view ??
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Apr 24, 2012
I found this Code Snippet GridView Export to Excel, that works but does not export the last column and is a little slow.
Private Sub ButtonExport_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ButtonExport.Click
Dim rowsTotal, colsTotal As Short
[code].....
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Oct 10, 2010
I am getting
IndexOutOfRangeException was unhandled
ON
Dim range As excel.Range = xlWorkSheet.Range("B2:" & alphabet(headerText.Length) & (items.Length + 2).ToString)
Imports excel = Microsoft.Office.Interop.Excel
[Code].....
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Aug 21, 2010
So I'm working on this project. I got around 60 images or so which I need to OCR, then I'll be inputting that data into my program which formats it and inputs it within this DataGridView. Now, I need the same data to be exported into an excel file. I saw several tutorials online but none of them are current (for VB 2008 or 2010). Either that, or they're not for VB.NET Windows Form Application. [I'm using VS 2010]
I'm fairly new to Datagridview as well. Just learnt how to add data to datagridview using this tutorial:
http:vb.net-inform...ridview_add.htm I was hoping you could help me out with where to start once I get my data all set up in the datagridview?
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Sep 14, 2010
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
[Code].....
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Nov 5, 2010
I have a datagrid and am using excel to store te data in. how can i delete ive tried a few things but nothing seems to work.including just the top line of code with dispatch = @Dispatch, and so on with all my column names
[Code]...
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Jun 28, 2011
Can anyone help me on how when I click on a button in VB, it will browse an excel file that will display its information in a datagridview..Then when I click on update after it will save the result in the datagridview in an access database.
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Mar 3, 2011
this whole code was working before and i don't know what happens..Trying to export to excel.
[Code]...
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Aug 15, 2011
I need to export data from excel to datagrid and have done it..whole excel data is displayed in datagrid..coding but i got an error when Conversion from type 'DBNull' to type 'String' is not valid coz' i have some null data in my excel file
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Jun 6, 2011
I am creating a db with an interface from VB.Net 2008, what I need is to export to excel from a datagrideview by clicking on a button. I have found a code but its giving me errors, I posted the code maybe u can find the error or point me to another method
Imports Excel = Microsoft.Office.Interop.Excel
Imports System.Data
Imports System.Data.SqlClient
[Code]....
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Mar 13, 2006
I 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.
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Jul 28, 2010
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]
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Jun 22, 2010
I 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.
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Mar 25, 2009
i have a datagridview in vb.net that is filled up from the database. I've researched and i found out that there is no built in support to print directly from datagridview. I don't want to use crystal report co'z im not familiar with it.
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Jun 8, 2011
I am looking to save my DataGridView to Excel. I have 2 Tabs on my Windows Form that are both linked to 2 separate DataDridViews. The first one I can save to excel no problem but am having difficulty with the second one. I have include my code.
Private Sub Button3_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button3.Click
Dim xlApp As Excel.Application
Dim xlWorkBook As Excel.Workbook
[code]....
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Jun 11, 2011
I am novice programmer in vb.net.I need to export datas from DatagridView to Excel.I could load the data but not columns names.Please help me to load the column name as well along with datas
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Sep 9, 2010
I use this code to export my datagridview to excel. bu this does not give the user the posibility to choose the location or the name of the file. How can I do this?
Private
Sub
Button1_Click(ByVal
[code]....
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