Subroutine - Saving Data From ListView To TXT File
Mar 1, 2011
I have a subroutine which saves data from a listview to a txt file which is named "listview.txt". I want the file name to change each time I run the program, by putting the date and the match number into the file name instead of the word listview. I have a global variable called Todayda for the date and one called MatchNum for the match number. Is it possible to have variables in a file name? If so, how can I do it?
Attached is the code, which works fine otherwise.
Sub PermMatchRec()
Dim outputstream As New IO.StreamWriter("c:listview.txt", True)
Dim newstr(10) As String
Dim st As Short
Dim myint As Integer
[Code] ......
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Mar 9, 2009
rewriting a class I use for saving Treeview data to a XML file for use of saving ListView data I can't really figure out the rewrite, I'm stucked, unfortunately Listviews seems to be a big problem for me in general.
Option Strict On
''' <summary>
''' The TreeViewDataAccess class allows the nodes within a TreeView to be
''' persisted to xml for later retrevial.
''' </summary>
[Code]....
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Feb 12, 2012
Currently I am saving data from my applications by saving a text file via a stream reader as a string. I have come to a problem. In my current application, I have an array of the following structure:
[Code]...
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Aug 6, 2010
i have multi columns that i want to save. i'm missing something here...just dont know what. I can get one column to save only. but i have columns like "name", "address", "phone number"
here is my Form1 code
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
ListView1.Columns.Add("Name", 100, HorizontalAlignment.Left)
ListView1.Columns.Add("Phone", 100, HorizontalAlignment.Center)
[code]....
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Nov 15, 2011
here is my code
Dim lvitem
Dim iCount As Integer
Dim iLoop As Integer
[code].....
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Nov 17, 2010
using the code below to save and reload the contents (text and images) of a Listview to a single file. The images are about 100x100 pixels.The problem is that if I save the images as JPG (they are already JPG when adding them to the ImageList/Listview), then after saving and reloading the data a dozen times, the images get distorted. When saving/reloading the images as PNG a dozen times, white spots starts to appear on the images. I guess this is because the images are converted over and over again when saving them.Is there a better to way save the contents of the Listview to a single file? I do not want to save the text and images seperately, because then the user has more to tamper with.
vb.net
<Serializable()> Structure TB_INFO
Public stdPic() As Byte
[code].....
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Jun 13, 2010
This saves a bmp with nothing in it
Dim bmp As New Bitmap(PictureBox1.Width, PictureBox1.Height)
PictureBox1.DrawToBitmap(bmp, PictureBox1.DisplayRectangle)
bmp.Save("C:UsersXXXXXXXXdocuments estingoftheimage.bmp", Drawing.Imaging.ImageFormat.Bmp)
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Oct 23, 2009
I am trying to transfer data from one subroutine to another. This is not working "ByVal J(1) As Double, ByVal Max(2) As Double".
Private
Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
...code
Call Data(ByVal J(1) As Double, ByVal Max(2) As Double)
[code]....
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Feb 15, 2009
I have an application that collects data from the user and reads data from the serial port. After the user has entered the data and the data from the serial port received, I would like to be able save those data into a file, preferably in some database format (e.g. Access mdb file) Can anyone help me with this, I am very confused with vb.net. I have created an Access database and connected it to my "solution", I also have created a datagridview on the form that connects to a table in the database. Now I basically want add two buttons (or menu items) on the form, one that does a "Save As" and allows all of that data to be saved into a separate mdb file, and one "New" button that opens a blank copy of the mdb file for more data to be entered.
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Nov 11, 2011
[Code]...
I feel like I missing an important step and the answer is stearing me right in the face...
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Apr 3, 2009
I have created a form that enables me to enter data for adding a new customer. so far i am able to save the data as a line and separte each field with a "#", with out any problem but the thing is i am not sure how to assin a primary key to the data, every time i add a new customer to my txt file i want the primary key to be one number higher than the previous.
so that i can l8r enter the primary key to search for the costumer and view that data
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Aug 11, 2009
i am going to be saving data with DPAPI encryption. i am not sure whether i should just have one big file with all the data or should i break up the data into separate files, where every file is its own record. i suspect the entire dataset would be less than 10mb, so i am not sure whether it's worth it to break it down into about a few hundred separate files or should i just keep it one file?
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Nov 15, 2009
I just downloaded VS 2010 beta to try my hand at re-learning (from scratch it seems) some of this to do a somewhat basic app. At the moment I have a tree view and it contains/will contain paired parent and child data. There's a Title (the parent) and a URL (child) and that's it with regard to depth. There will be potentially lots of these pairs. That said there may be some options associated with those pairs that would also need to be stored later. I'm thinking the best way to deal with this is to store the data in XML format but, of course, I've never really done much with XML though I can physically read it. Could someone point me or provide a piece of code that saves and restores a tree? [Code]
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Jun 10, 2011
I am currently working on a vb project. What I am trying to do is reading a XML file and saving all the data in to the Access DB. Once this is done, I read the data from the access Db and display it in the required fields in VB form. Issue is, when i store the value in the access, a weird character is assigned before and after the data. The character is a square box with question mark in it. Also the same character displays on the VB form as well
[Code]...
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Apr 14, 2010
how do i save data from a text file to different variable?i want to save each data from different rows and columns to different variable.[code]
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Apr 17, 2010
I have a sign up sheet that I am creating for a project I'm working on and the sign up sheet works and I can enter all my data into the text fields and save the info but when I go to open the file again all the data is pushed into one text box and not in their own fields?
If there a trick in the SaveFileDialog that I can use to save each field to file then open them back in their own field?
Here's a screen shot of the before and after the program [URL]
And here is code behind the Save button [URL]
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Apr 7, 2011
I think I'm over thinking this, but I'm not sure where to start.
Sub SaveDocument() Dim outputFile1 As StreamWriter 'Object variable
Try'Create File outputFile1 = File.CreateText(strFilename)
[Code]...
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Oct 28, 2009
I am trying to send data and arrays using System.Object and System.Event. Lets say I have 4 pieces of data: date, y(1),y(2),y(3).
sub main(...)
Dim date,y(1),y(2),y(3) as integer
Dim obj as System.Object
Dim args as System.Eventargs
How do I organize obj with all the integer data above so I can send it to main2.
main2(obj,args)
end sub
Sub main2(obj as System.Object,args as System.Eventargs)
End Sub
And how do I apply this to (ByVal sender as System.Object, ByVal e as System.EventArgs). I am using VB.net 2005.
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Mar 15, 2010
A variety of files (pdf, images, etc.) are stored in a ntext field on a MS SQL Server. I am not sure what type is in this field, other than it shows question marks and undefined characters, I am assuming they are binary type.
The script is supposed to iterate through the rows and extract and save these files to a temp directory. "filename" and "contenttype" are given, and "data" is whatever is in the ntext field.
I have tried several solutions:
1) data.SaveToFile "/temp/"&filename, 2
Error: Object required: '????????????????????'
???
2) File.WriteAllBytes "/temp/"&filename, data
Error: Object required: 'File'
I have no idea how to import this, or the Server for MapPath. (Cue: what a noob!)
3)
Const adTypeBinary = 1
Const adSaveCreateOverWrite = 2
Dim BinaryStream
[Code]....
This works, but the file should be saving to the server instead of popping up save-as dialog. I am not sure if there is a way to save the response to file.
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Aug 22, 2010
1) How can I load data from Text file to DatagridView. I want it because I'm making a listener. And when I load a data from text file, i want to edit rows. And this calling the second question.
2) How can I save data, Datagrid to Text file.
I found a code
Dim obj_oledb_da As System.Data.Odbc.OdbcDataAdapter
Public Function ConnectCSV1(ByVal filetable As String) As DataSet
Dim dataSet As New DataSet
[Code] .....
I can load data with this code but I can't save.
My Text File must be like this:
#IP
127.0.0.1 localhost
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May 28, 2009
I currently have a class
Code:
Public Class Customer
Public Property AccountNumber() As String
Public Property PMDue() As String
[code]....
Account Class is initialized as new customer. To save the data from each property in the Account Class, I'm currently looping thru the properties each time Account obtains new data. I tried to simplify the process by the following line...
Code:
CustomerStreamToWrite.WriteLine(Account)
This does not work as written. I figured it would be much faster. It did not write out the property data. It saved "WindowsApplication1.Customer" Not exactly what I wanted. Is there a method to get it to save the properties in a written out style by just using the class name?
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Feb 5, 2009
Basically iv got a form, and the fields are
"Full Name":
"Amount Contributed in �":
below the form i have a button that saves the data to a text file called 'mailinglist.txt'
So i enter the data into the fields and click the button like as follows:
Full Name: John Smith
Amount Contribted in �: 40
However..... when i go view the text file it displays John smith40, which i want a space between the name and the numeral.
Also as i want a maximum of 5 people added to the mailing list, i would like a function that lets me somehow "adds" an extra 4 people to the text file without overwriting the 1st name, and uses the same "current" form displayed to the user.
Here is the code as follows:
Public Class Form2
Private Sub TextBox2_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TextBox2.TextChanged
[Code]....
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Apr 22, 2009
I have the below code simply to save a name and email, however i want to preserve the current lines in the text file.
'Pass the file path
sr = New System.IO.StreamWriter("subscribers.txt")
'Write a line of text.
[code].....
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Feb 7, 2012
The file structure is fine for retrieving data from the file but when I go to write data to the elements and hit any of the fixed array elements, I get an exception error. this has got to be a sytax problem I am just not seeing.
It seems that I am not addressing the array member correctly yet the same logic pulls it properly from existing records on file.
in a Module I have the structure as follows:
Structure INVOICE
<VBFixedString(6)> Public NUM As String
<VBFixedString(2)> Public SYMBOL As String
[Code]....
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Dec 1, 2009
I would like to write a sub routine to kill an executable file called 'dfsvc.exe'. I'll call this subroutine when I exit my application to kill this file. When I exit my application this file is still running and takes around 15 minutes before it disappears. I would like to kill it to remove the delay.. The following code below doesnt work..
[Code]...
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Apr 28, 2010
saving data from a text field and multiple combo boxes to a file on a server in visual basic 2008
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Jun 8, 2011
I am having a issue as above title. How to show data from file (txt file) in list view control?
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Jun 9, 2011
I have a question because in my I.O.File. I use this to save the data in the listview in a c: est.txt but the problem is that it only save one data and every time I click the save the previous data that I save is deleted and it change the new one that I save. And also when I click the remove in the listview it will also delete the data that save in the c: est.txt and the format should like this
First name | lastname | address |
rae alanah new york
john smith los angeles
Here the code that I did...
Dim myFile As String = "C: est.txt" '//file location
System.IO.File.WriteAllText(myFile, TextBox1.Text & " " & ComboBox1.Text & " " & TextBox4.Text & " " & ComboBox2.Text & " " & TextBox3.Text & " " & TextBox2.Text & " " & TextBox5.Text)
Or you can also create new code base on ur understanding. This is the first time I use the I.O file or file stream in vb.net because my crystal report does not detect my database that's why I need to do this.
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Mar 9, 2012
I'm using Visual Basic Express 2008 and I need to upload and sort two data text files (notepad) in a listview box. It doesn't have to be a listview box I chose that because it has nice options for columns. Anyway I've got the code set up to open the dialog box and allow the upload of multiple files. I've also got it set up to show separate columns, movie titles and box office amounts, titles in one file box office amount in the other. What I nee sorting the data once it's uploaded so the movie titles show in one column and the box office amounts show in another. Currently everything is showing in the left most column. I'd like to be able to represent the data seperately also so I can format the dollar amounts into currency. Here's what I've got so far:
Private Sub LoadButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles LoadButton.Click
Dim DialogBoxResults As System.Windows.Forms.OpenFileDialog
[code].....
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Nov 22, 2011
[code]the bold part must be changed cause everytime i open the saved file, word success is the data in there.
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