Datagrid Contents To CSV File?
Jun 5, 2011
I have a datagrid table with 5 columns and as many rows as the user enters. Is there a simple way to export the contents of the table to a CSV file?
The columns are named; a,b,c,d and e Im using VB 2005.
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Aug 24, 2011
I decided to rewrite my project. Hit another snag. How do I write the contents from a datagrid to a file and back into the datagrid again later? (Actually, I've done the writing ok - but for the life of me can't get the data back into a blank datagrid.
Here's what I done so far:
Imports System
Imports System.IO
Imports System.Text
[Code]....
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Apr 21, 2010
My text file is something like what you see below, and I want to populate the datagrid. Once I populate the datagrid, I'll use that kind of like an excel spreadsheet in the sense that I'll dip in and grab values based on row and column index to display to the user. I will also (on a different form maybe) display the same datagrid to the users so they can sort by column at their choosing.[code]The error I am getting is: Value of type 'Integer' cannot be converted to 'System.Windows.Forms.DataGridViewCell'.
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Dec 20, 2011
I'm in the process of adapting a current program that I've created to automate it. **Current State***User selects an excel file and the contents are loaded into a DataGrid User can select which environment to run their query against (stage/prod) Program completes processing and updates datagrid with new values User can export datagrid to excel What I'd like to do is centralize the program on one computer and have it monitor a network folder for creation of a specific file type (*.xls or *.xlsx). If one of these is created in that folder then I want to add that file to a queue for processing. Once done processing I want to send the results as an attachment to an email to the user that created the file. After a file is processed I would like to remove it from that folder as well (into a diff folder of completed items).
[Code]...
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Aug 12, 2009
Presently iam using the following code : -
connDental.Open()
Dim da As MySqlDataAdapter = New MySqlDataAdapter("SELECT
[code]....
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Aug 8, 2011
How can i print all the contents of data grid including headings in VB.NET
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Jan 16, 2010
Is it possible to transfer the contents of a row in a datagrid to a textbox? (Like, when I click row 3, the contents of that row will be transferred to the textboxes) If it is, can anyone guide me to a tutorial? Or is this technique applicable only to the ListView object?
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May 21, 2012
I am using a Checkbox outside of a datagrid. When i select the check box autopostback is true, and this would then show the image, but i cant access the images within the datagrid with that script. If i use a seperate image outside of the datagrid the script works. How can i get this script to work finding when the checkbox out side of the datagrid is checked to then show the image within the datagrid?
The script i am using is
<script runat="server">
Sub Check(sender As Object, e As EventArgs)
[code].....
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Dec 15, 2011
How to validate the contents of a datagrid per row, per column in vb.net?i have a specific coloumn PlotNo in which values shld nt get repeated..it is an unbound table..
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Jul 2, 2011
How to easily print the contents of a datagrid. I have searched and found some examples, but cant get any working in vb2010.
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Oct 17, 2009
I am trying to display the contents from a datagrid into a textbox, there are two collums that I want to display. I can get one collum to display by using the following code.
txtCollumone.Text = DataGridView3.CurrentCell.Value
but I want to display (from the same row), collum two.
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Aug 11, 2011
While working with an excel file (.xlsx), the data I get from it is an IEnumerable(of Dictionary). When I bind this to my datagrid, I get the problem that I only see 2 columnsI've been tracing this problem and discovered that in the first row in the excel, there are only 2 values (cell C and D). I think the binding to datagrid looks at this first row to create its headers. This results in my datagrid only showing columns C and D.
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Oct 16, 2011
I am trying to create an xml editor that read and write xml. my code reads the xml with no problem and allows me to create new rows but when I try to "write" it over I get the following error: "Token StartElement in state Epilog would result in an invalid XML document"
here is my xml:
<?xml version="1.0" standalone="yes"?>
<MacroList identifier="test">
[code].....
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Mar 22, 2009
What i am trying to do is open a save file dialog and write to a .txt firl the contents of my listview. so far:
[Code]...
i have this, but i'm not to sure how to write to the .txt file i know i need to use a for each to loop the contents of the list view
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Apr 15, 2012
I have a Motor Class, along with a Collection to hold objects address. Each Collection object holds the Class fields as a String to display in list box. I am able to write the collection string to the file and save the string. But unable to open the existing file, read the file back into the collection object.
Public Class Motor
Private strId As String
Private strDescription As String
[Code]......
I have looked all over for anything (samples or tutorials for working with files and collection objects) pertaining to type of operation with out any success.
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Apr 22, 2010
I'm working on a homework assignment for class from the Programming in Visual Basics 2008 published by Mc Graw Hill. It is the Chapter 11 Case Study. We are to create a program that makes a text file and populates it with data. Then use a second program that reads the contents of the text file into form containers. The first half is working perfectly.
[Code]...
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Nov 11, 2010
i have an array of booleans whose current boolean values I want to preserve but add additional length to the array? How can I achieve that? My code looks like this:
Dim Array() As Boolean
Dim ArrayInterimShort() As Boolean
ReDim Array(119)
[code]....
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May 10, 2011
I am trying to create a code where I placed sets of numbers in an array.I'll use a masktextbox to have the user enter the numbers to match what's in the array. If the user enters the number, ex: social, and the data is correct (matches the numbers in the array), something happens if the number entered in the masktextbox does not match any of the number sets in an array then another thing happens.The masktextbox so far only validates format and gets number only, however, I want the number entered to match whats in the array.
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Feb 16, 2011
I need to delete/clear all data from an existing csv file from Visual Basic. This seems really simple but I have had a lot of problems making it happen!
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Jul 27, 2009
Dim fs As String = TextBox1.Text
Dim obj_reader As New System.IO.StreamReader(fs)
TextBox3.Text = obj_reader.ReadToEnd
[code].....
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Apr 25, 2010
I have an XML file created using VB 2008 and I want to read the entire contents of the XML file into a text box.
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Oct 16, 2011
Is there any way I can read the contents of PDF file in Visual Basic 2010 ?Is there any ActiveX Control available for this purpose?
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Nov 17, 2009
I want to read a PDF file having lots of text, images, tables in it. I want to read the entire file content by content page by page, from top to bottom.
For example:
The top of the page contains the Heading
Then on left hand side the contents and on the right hand side images
So I first want to get the heading then the contents then the images. Is there any Open Source for reading the PDF or any coding reference for .net 2.0 or greater version.
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Jun 20, 2012
I've used System.IO to check if files exists/copy/delete in the past but I have not been able to check if the file is empty?
I have two text files, and i want to add a check to see if both files are empty, if they are empty then I want to exit the application.
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Mar 19, 2010
how to copy the contents of an existing Access file stored in a location (for e.g. C:/test.mdb) to a different location (for e.g. C:/Myfolder/testcp.mdb)
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Jun 22, 2010
I have tried many methods to save my datagridview contents to a file but with no luck does anybody have a good method for xml to datagridview, datagridview to Xml,or any other methods to read/write a datagridview.
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Oct 28, 2010
Is it possible to open a ZIP file and use afile, but not unpack it.[code]....
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Sep 4, 2011
I've been working on a calculation program and it needs to access both a list of constants and a list of variables. So far during development I've used local .txt files and read from them using a StreamReader that accesses them directly using the full path.Obviously that won't work for a published version as there's no guarantee that the files will ever be put in the same place so I'm looking for a way around that.
I've managed to get the constants file converted into a .resources file but the conversion seems to have changed the order of the constants, ie: Pi was first in the original file but is now second. The rearrangement doesn't seem to be alphabetical either as the next pair of entries start with s before we move back to p. Is there any way to force resgen to preserve the order of the elements? Is there a different method I should use?
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Sep 11, 2011
I am a completeBrenner of vb.net using the below code for download stock price from yahoo finance
but it is difficult to add stock symbol always in code,so I want to use a text file and add stock symbol, A Program will read the text file and [code]...
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Nov 24, 2010
At work we have a txt file with items recorded in them
The coloms are typical of
Apple, *fruit
Cow, *animal
House, *thing
Tree, *plant
Is it possible too read through this txt file to check if apple aready exists. I namely want to build a preventative for adding double items...
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