I'm trying to figure out how to load a textfile into a listbox. On button click it would pop up a window where you'd browse to the folder and file and then select it and it would populate the listbox.[code]...
View 1 Replies I am starting to learn reading and writing to textfiles. One quick problem. My code here
'Read is the variable that will read the kp.txt file"
Dim read As IO.StreamReader
read = IO.File.OpenText("C:2/kp.txt"[code].....
however when it is read into the listbox those 3 words appear on one line in listbox
How can i make it so that each line of the textfile is placed in each line on the listbox?
I receive this error using the following code when the executeNonquery() line I am trying to load data from refnum to a column in the table
The variable name '@refnum' has already been declared. Variable names must be unique within a query batch or stored procedure.[code]...
how would i go about changing this code to use a listbox and not this path to file.("C:TestText.txt")
Code:
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
[Code].....
how would i go about changing this code to use a listbox and not this path to fil.("C:TestText.txt")
Code:
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs)
[code].....
[code] I'm trying to load a textfile with (formatted, mostly tab delimited) data, into an arrayList.To manipulate and extract certain data I was able to search through the arrayList and retrieve the needed data.This is what's not working: If I have found my needed data in certain places from the arrayList, I would like to split this to read the needed values. Trying to do this I constantly get string cannot be converted to 1-dimensional array of string errors. [code]
View 4 RepliesIt may seem noobish but, I've been try forever! I've been postponing a database project for like 3 years and I finally come to some solutions except for when it deletes an Item from the list. On form load, the listbox generates data from a text file (we'll call text1) which has data in it. For every line of data in that text file (text1), there is a text file (text2) in a 2nd folder.
For example, there may be, in text1, a line named "Hi". In the 2nd folder there is a text file named "hi.txt" Another line (say the next line under 'Hi') is written as "Hello world", there will be a file in the second folder called hello world.txt"
May seem confusing but it works well. My problem is making that 1st text file that has ALL of the data that loads into the listbox, be rewritten over with the new data in the listbox OR remove a certain line of from the text file.
I'm trying to place the contents of a text file (just a list of names) into a list box when the form loads.
My code currently looks like this:
Imports System.IO
Public Class Form1
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
[Code].....
I can get the names into the list box, but they're all on one line. I thought about using a For...Next loop to read the contents of the text file, but I got into all sorts of trouble; do I need an array with that method? So I've got back to the code I originally had.
here is my code
Imports System.IO
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As
[Code]...
check how to remove the extra char in listbox "[]" like this
Im trying to write all the current movies in a listbox named "ListCart" to a text file called "orders.txt"[code]...
View 2 RepliesI can retreive all items in my notepad but when I am adding them up in my listbox, and trying to print them in the console. I can only display two strings. I don't know why. My string is a combination of a name, space & score. ex: "luke 300". That is the pattern of all strings per line in my text file. I am separating the name and the score using space as the indicator. When ever a space is found, string before and after the space is retrieved and added to the listbox
Here is my
scorelist = New ArrayList
reader1 = My.Computer.FileSystem.OpenTextFileReader(My.Application.Info.DirectoryPath & "scores.txt")
[Code].....
This saves but first erases the old text.my code is like this[code]...
View 2 RepliesBasically, I want to be able to write all listbox items names to textfiles names, so if I have the following listbox items:
dog
cat
catdog was a good show
1 3 4 4 6
I want them to be all textfiles. NOT make a textfile then have that text in them, i want to make individual textfiles for each item.
I have a 4 listboxes, all 4 listboxes will be populated after I clicked the cmd_button. I need to have the items on all 4 listboxes written to a text (or preferably rtf file if possible)
[Code]....
How would one remove an item from a ListBox and then remove that line from the TextFile and repopulate the ListBox with new data in Visual Basic.Net?[cod]...
View 2 RepliesI've got the following txt file:
[code]...
Now I want that presented in the listbox with the semicolon and it should be aligned per column so that the numbers, the names, the prices and the quantity are exactly aligned per column.If I read the file like this:
[code]...
Then the semicolon is not presented in the listbox and I don't have any alignment per column. As the names of the woods are not equally long the prices and the quantity are not aligned directly below each other...
My questions are:
1) How to add the semicolon in the listbox as seperator of the columns
2) How to align the 4 columns in the listbox (as I have an array Item(3) )
Later on I need to be able to change the quantity (last column) from 0 to > 0 (that's why I have to use an array)
I am trying to create a textfile and write some lines into the textfile. However, the code that i am using can only write when the textfile is already created in the directory.
For this case, can i actually allow my script to search if a textfile is being created, if not create a textfile ???
Dim pathdir As String = "C:workingdir est.txt"
If System.IO.File.Exists(pathdir) = True Then
Dim objWriter As New StreamWriter(pathdir)
[code].....
I'm load file XML to listbox It have old value in new line how to edit it.
[Code]...
in my program i am trying to make it so that when you press a button it opens a "choose file" popup(where the user can choose a text file) then after the user chooses it the program will automatically load each line of the textfile into a listbox.But i have been researching it and the only thing i have been able to find is a file>open thing. So how cold i make it open a "open" dialogue on the press of a button and since i haven't been able to find anything on the open dialogue i haven't looked for anything on the loading each line of it into a listbox?
View 3 Replieshow can i save load a listbox? [code]
View 2 RepliesI am trying load a text file that contains ips and ports in the format of Ip:Port
this is the code i have so far...its gives me an error of.... Is operator does not accept operands of type 'Boolean'. Operands must be reference or nullable types.
[Code]...
i want to load a text file to my listbox. Chosen using a openfiledialog, so it wont have to be on a fixed location. However, i dont know how to do this. I know how to save a text file from a listbox, but not how to load one into it.
Next question, When loaded into the listbox, how can you select the next line?
I'm having trouble loading images in a listbox. Is this possible? I don't want the listview. I only need the images, not the images as icons for something else. Also these are image from urls.
View 2 RepliesI want Add Item to Listbox in Form Load, I Mean Before I Start The Program It Already Shows Items in The Listbox also i want to know how to create a search button so that when i click the search button it search from the items in the listbox if it available it say found it if not it say error !
View 3 Repliesi'm using an sql database, and on my application i load a listbox with data from table1. like:
Code:
dim sqlstr as string = "select name, code from table 1"
dim sqlcmd as new sqlcommand(sqlstr, conn)
dim dr as datareader
[Code]....
what i want now, is for the code also to be loaded to my listbox, but for it not to be visible to the user, so thet it can in the future be used in where statements.
How do I get my info from a .txt from my website to load into my listbox?! Like if I were to do this...
Try
Dim client As New Net.WebClient
client.Credentials = New Net.NetworkCredential("username", "password")
ListBox1.Items.Add(client.DownloadString("ftp:public_html/listboxitems.txt"))
Catch ex As Exception
MsgBox("Error : " + ErrorToString(), MsgBoxStyle.Critical)
End Try
It just adds a straight line of my multi lines that are in the .txt file...
I am trying to load a listbox from a text file, I have debugged the routine and have used the "step into", I have the routine in the Form Load section, it shows the names being loaded but will not show in the listbox itself, please please give me some ideas I have been racking my brain for days on this,
[Code]...
I'm making an irc client (working)Now, I load all the users in a listview or listbox (I can choose)So I need the listbox or listview the be sorted by the ranks of the user.The ranks are in the listbox, but I just want the users with '~' the be at the top & the ones with '&' under those,
View 14 RepliesAdd the items from text file into TextBox and ListBox.[code]...
Where, ";" is the Delimiter and data is just one line only. "A" has to load in TextBox and "Cat,.....,Bird" has to load in ListBox, one line per animal.I've already read the text file and load "A" into text box. But couldn't figure out how to load rest of the data into list box.
i have a issue when i load my ini to my listbox and 'this my load ini to listbox
im a As String = My.Computer.FileSystem.ReadAllText("movieextlist.ini")
Dim b As String() = a.Split(vbNewLine)
ListBox1.Items.AddRange(b)
try to scan for extentions it crashs, BUT if i do on formload listbox add every ext 1by1 it works. if i use the load and hit scan it crashes
Using FB As New FolderBrowserDialog
If FB.ShowDialog = Windows.Forms.DialogResult.OK Then
For Each Ext As String In ListBox1.Items
[code]....