VS 2008 Loading File Into Array?
Jan 22, 2011
I have a Customer File, and want to serach through the customer file to find a customer. I want to be able to Load the data into an array, and then from that array into the list view. BUT i don't want all of the feilds. I only want 3 (out of a total of 7), CUST ID, FNAME, Lname, etc. When the user clicks on the searched Customer, it then displays that customer in the form.
What I am not sure about doing is loading the file into an array
Edit: The file is a .dat file. I will happily attached my form if someone requires it
EDIT2: Can't count to 7
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Jul 8, 2011
I'm building an app to manipulate information in a CSV (tab-delimited) file. The 1st part is to load the file and I'm having a real tough time of it. I'm using MS Visual Basic 2010 Express. Here's the code I have with a few comments:
[Code]...
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Apr 17, 2012
I am a beginner learning Visual Basic and am creating a simple quiz.I need my program to load the quiz questions and answers from a CSV file that I have created and saved in the resources folder.
I need some code to load the CSV file into VB and then populate a 2D array with the values from the table.
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Aug 24, 2010
i want to save and load an array as and xml file. what is the easiers way to do so.
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Aug 5, 2009
I found this code on the net that allows you to put the contents of an array into a datagridview:[code]This works fine as is, but can someone tell me how I can add items to the array without them all being contained in a single statement?How would I modify or seperate this out to use it inside of a loop?[code]
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Feb 24, 2010
Ok here we go again, im a complete beginner to coding and have started with visual studio 2008 using the .net/vb libraries, as my first project i went with an emulation application, and it went great:So now i think its time to move onto a little more advanced tech's, so i added in a combo box and i want to change how my code works, and this is where my troubles are.To start of with the combo box, i have it added to my winform and have 3 items on it 'Action' 'RPG' and 'Sim' and i have made 3 .txt files in the projects root folder with the same names. What i want to have happen is when the user selects for instance 'RPG' from the combo box the items displayed in the listbox change to the contents of the rpg.txt file. After searching around for a few hours and no luck i tried this
Private Sub ComboBox1_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ComboBox1.SelectedIndexChanged
If (ComboBox1.SelectedItem = "RPG") Then
[code].....
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Jul 29, 2009
I am trying to make a jeopardy game where you can edit the questions/answers, so I made a XML, I have one function to save default values, then I have another function to load them... the saving goes perfectly now the loading is the problem.
[Code]...
Additional information: Object reference not set to an instance of an object.***i took out the space between Category and the number, that fixed the old error, now i get this one well... thats just about it... I am trying to load the same file that I saved previously.
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Jun 16, 2009
I am trying to load an Excel 97 single tabbed spreadsheet into a SQL server table using the OleDbDataAdapter function. From all the documentation I have found, the first parameter should be "select * from [sheet1$]". This works fine for me only if the tab in the worksheet is named Sheet1. If I change what's in the [] brackets to the actual tab name, it also works fine.
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May 19, 2010
How do I load a XML file into a webbrowser? I tried navigating to the XML url, but it prompted me to download the XML file.
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Apr 1, 2009
how to load a video file via a textbox ? i have Windows media player on my form and i have a textbox i wanna have a button that will load the browse dialog and then load a movie file?
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May 19, 2010
i'm trying to load a txt file into a listbox in this way
Dim FILE_NAME = OpenFileDialog1.FileName
Dim sr As StreamReader = File.OpenText(FILE_NAME)
Dim riga As String
riga = sr.ReadLine()readline
While riga Is Nothing
[Code]...
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Apr 21, 2009
Im trying to load a price of an item from a prices file (Items). The variable (ItemName) is taken from a listox populated from the file on another form. And (Item) is the structure which i saved the prices information for into (Items).
What im trying to do is take the string from the listbox and change the textbox (txtCurrentPrice) text into the price for the highlighted item, which is also the name of the (txtItem) textbox.
However i cant find a way to reference the Item.(ItemName) to get the correct price from within the file, as ItemName isnt a member of the Items structure Item instance.
ChangeItemForm
Private Sub ChangeItemForm_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
[Code]....
ItemName holds the name of one of the variables saved in the structure. So say if ItemName was holding "IridescentRoll" As its string I would be trying to find Item.IridescentRoll, which would show me the price of IridescentRoll which im trying to put into the textbox. and As Item.IridescentRoll = 3.35 it would display 3.35 in the textbox.
As you have probably guessed, the Item.ItemName doesnt work ('ItemName is not a member of...'
Is there any way to write this without having to create a new record for each item? As that would take a while, and im not sure i have the time x.X
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May 11, 2009
I have a few questions. Working on a program here that reads in data from a .txt file and puts it into 3 different labels during the form load procedure. I was wondering though, here's what I have so far:
Dim contents As String
contents = My.Computer.FileSystem.ReadAllText("UserInfo.txt")
Label1.Text = contents
[code]......
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May 15, 2009
how to do this, but I'm ignorant so I forgot, how to load lined text from a .txt file into a combobox?
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Aug 27, 2009
I want to load an xls file to dataset, edit the data, and import them in mysql. My problem is that I can't load the file. It seems like it ignores the file completely.
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmd1.Click
Dim MyConn As OleDbConnection
Dim myPath As String = "C:TempManinLottery2009.xls"
MyConn = New OleDbConnection("provider=Microsoft.Jet.OLEDB.4.0; data source='" & myPath _
[Code] .....
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May 25, 2010
im having trouble coding a project Im supposed to Define a structure named Product. It should contain two member variables one a string variable called item number and another a double called Prices. In the form's load event procedure I should be able to the item numbers and prices from the ItemInfo.txt file, and store them in the module-level array. Furthermore, Im supposed to be able to add teh item numbers into the list box. There are no buttons just the Exit button. When user select the item the user should be able to see it in the lblPrice control.
Name: Glovers Project
' Purpose: Displays the price of an item
' Programmer: <your name> on <current date>
[code]....
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Nov 20, 2009
im working on the project and loading 10 MB text file to richtextbox, but problem is my application freezing during that time. Can anyone post the solution for progressbar during the file is loading?
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Mar 22, 2009
visual basic 2008
I am pretty good with visual basic and visual studio, but the one problem I have is saving... I am currently creating a game, and it has a lot of variables, I want o be able to save all those variables to a text file and then re-open it later. When it is open, i want the variables to have the original value from the text document.
To sum it up: I need variables to be saved in a text file, and then be able to open the text file back and have the variables have the proper values from the text file.
I have been searching around google, and I found ideas, but I have no idea how to use them. Like using XML or saving a table with " TextFile.WriteFromTable" "TextFile.ReadToTable" but I don't exactly get how to use those (the posts weren't too clear)
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Nov 27, 2009
Can I save an array into my .bin file then read the array again just like a string or Integer??
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Jul 31, 2009
when i try to load i get this error:
An unhandled exception of type 'System.NullReferenceException' occurred in Jeopardy.exe
Additional information: Object reference not set to an instance of an object.
on this line:
VB.NET
question(0, 0) = node.Attributes("Question1").Value
note that i did declare:
VB.NET
Dim question(,), answer(,) As String
Here is my code to save:
VB.NET
Dim filepath As String
Dim results As DialogResult
results = SaveFileDialog1.ShowDialog
[Code]...
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Mar 12, 2012
firstly this is not exactly a problem but more like a quiz. I have 3 arrays which I will load data into from a dataset, in the future this set of data might expand and the code will get excessively long, how can I load the data as seen below using loops without using additional array?
[Code]...
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Mar 7, 2009
why my code doesn't work? I want the array elements to be loaded into a listbox when the button is clicked. Is it because not all elements in my array have been filled? I've tried putting the array declaration as a global variable and as a local one (below), but the same error occurs as soon as the button is clicked - "ArgumentNullException was unhandled".
Private Sub btnLoadCustomerNames_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnLoadCustomerNames.Click
'String array holds maximum 100 customer names
[Code].....
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May 8, 2009
Okay, so I have been developing my own MP3 player recently, and now I thought I would make the player remember what songs were in the playlist when it shut down. It now remembers the playlist file that was used last, but I would still rather make it so that it remembers all the songs without saving the playlist.
I've been using a setting to save the playlist file, but when I try this:
...it doesn't work. The savedSongs is a System.Collections.ListArray. Heres the code at Form_Load I'm using at the moment.
Dim loadSongs As New System.Collections.ArrayList
loadSongs = ExperimentalPlayer.My.Settings.savedSongs
lbl_songname.Text = ""
[Code].....
Should I use some other kind of variable to save the filepaths? Well, the other option is that I use a text file for that, but I'd rather make it like this.
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Oct 18, 2009
What would be the best way to load and save a multi-dimensional array (of bytes). I've looked through streamreader tutorials but it always seems to instructions on how to save strings. I also know there's a very easy way to save a one-dimensional array, but it doesn't work on multi-dimensional ones. What should I be reading up on?
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Jan 23, 2011
I have a huge assignment tommorow in which i have to make a trivia game on visual basic. In this game you have to be able to make your own questions (modify/delete etc). Basically I have one form where you can add questions into one listbox and answers into another listbox. Now i have another form with the actual game board. I want to load each individual listbox item from the other form into the array on the game board form. Example. the first item of form2.listbox1 into question(1)
I got this so far
Private Sub Form5_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim i As Integer
[Code]....
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Jul 14, 2009
The assignment called for a VB.Net (not web based) program that would accept user input for the loan amount, interest rate, and term of loan, and display the monthly payment of the loan then list the loan balance and interest paid over the term of the loan. the list will be longer than the screen so use loops to display a partial list, hesitate, and then display more of the list. So, I did exactly that and the program works fine. However, after submitting this program for grading, The instructor for the class tells me, "One thing you should work on is not using a timer to pause.
You should not use a scroll bar either." He says I should work on loading the results into an array or use a loop with a counter that can be used to display a given number of results with a more results button for displaying more (but without a scroll bar?). Like I said, this program works fine and I am not asking anyone for any specific code (some sort of example would be great but not necessary) What I am asking for is an explanation of how I would go about loading results into an array to be used for displaying just partial results at a time in some way other than I used here: [Code]
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Feb 10, 2012
I have made a function which opens a random image, but sometimes I get the 'Index out of bounds of array' error.
VB
Private Sub OpenRandomImage() Handles mnuOpenRandom.Click
If FolderBrowserDialog.ShowDialog <> vbOK Then Exit Sub
Dim Path As String = FolderBrowserDialog.SelectedPath
Dim BmpFiles, GifFiles, JpegFiles, JpgFiles, PngFiles As Array
BmpFiles = IO.Directory.GetFiles(Path & "", "*.bmp")
[Code] .....
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Nov 15, 2011
I'm creating a small program to read from an SQL server, loading result into an array, pivoting the array to my liking and mailing it out to selected members of a group. It's going to be run once a day with Windows schedule. I have the connection, query and mail sorted, but not the datareader to array bit.
(line 26)?
Imports System.Data
Imports System.Data.SqlClient
Imports System.Net.Mail
[CODE]...
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Sep 19, 2010
I want to be able to able to read the dimensions of a TIF image without loading the entire file.
PS Using Visual Basic 2008 on Vista64.
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Apr 8, 2010
I am not sure about how to go about doing this but here is what I want to do. I want to make an array from a text file and have it load a run time. Here is my code so far but I am a bit stuck
FileInput
Public Class fileinput
Public Function GetFileContents(ByVal FullPath As String, Optional ByRef ErrInfo As String =
[code].....
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