I want to create a very simple database. form1 - ListBox1, textBox1, buttonadd, buttonremove. The item collection of the ListBox1 is stored in a txt file along with a string that will be displayed in the textbox1. the file will look like this ( like a .ini file):
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I am making a password program that remembers what the password is for and what the password is. I have two listboxes: 'listbox1' for what the password is for, and 'listbox2' for the password. I also have a remove button. I would like it so when you press the remove button, the selected item in listbox1 is removed and the password in listbox2 is also deleted. The passwords are stored in two settings: what, and pw. The items that will be deleted will have the same value. By value i mean they will be the same number item. E.G. the 1st item, or the 3rd item in the list.
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When button 4 is clicked, I am attempting to write the information from listbox1 to a text file. It's not working. The textfile is being created, but nothing is being added. Either it creates the file, but doesn't add the text, or it tells me there's an IOException. and that the file is already in use...
Private Sub Button4_Click(sender As System.Object, e As System.EventArgs) Handles Button4.Click
Dim path As String = "Directories.txt"
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[code]I just want it to change item format in listbox (IP: 0.0000.0000.000 PORT: 8080 to 0.0000.0000.000:8080) and write that line to a text file located on desktop!
View 2 Repliesi can open a text file with 196000 words to listbox1. can i pick out 10 random words out of listbox1 to listbox2 by clicking button2? and if i click button2 again can it shuffle to a new words?
View 10 RepliesThis switching from VB6 to VB.NET is starting to become a major pain I have a program I am making that loads a list of Vehicles from a text file to ListBox1. When the Selected Item in ListBox1 is clicked, it brings up the Image of that Vehicle, called from an external Image folder, so new Images can be added. I have an 'Add Entry', 'Delete Entry', 'Refresh List', 'Save Changed List', and 'Exit' buttons, all coded and working as I want them to - Everything is working better than I planned, without having to Google my a$$ off finding 'snippets' - I figured most of it out myself - What I am trying to do now is have a ListBox2 populated with a section of the text file:
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Part in ListBox2, which when an entry THERE is Selected, it can be edited in TextBox2.Is this as hard as it seems? I want all the Vehicle Stats for that Vehicle to show when the Vehicle is Selected, and have the Stats section editable...
Need to design a program that can encrypt and decrypt messages stored in simple text files using a private key stored in a separate file. Software should also be able to allow the users to enter simple messages that either displays the encrypted or decrypted message. The encryption method should use a simple substitution method. It should be set out in the following format:
Example (the "@" is the separator):
@
The character The Code End of line
A @ 4gh EOL
B @ 84!9 EOL
Has to use the 256 ASCII character codes. The separator will be used to separate the character and its corresponding code.Here are the pseudocodes I have come up with:
� Read any private key file
separator = readline(file);
while not EOF(file) do
tempStr = readline(file);
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well i was trying to do a function called Procedimento() for each item in listbox1 but it's impossible .... how it can be done ? What i try until now :
Dim myItem As Object
For Each myItem In ListBox1.Items
Procedimento()
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Okay I've been wondering about this for a while now, but whenever you assign variable values to objects they tend to just become references to the original object
For example:
Dim copiedCollection As ListBox.ObjectCollection = ListBox1.Items
For Each L As String In copiedCollection
If L = "Goodbye" Then ListBox1.Items.Remove(L)
Next
As soon as it encounters the string "Goodbye" and removes the item from the listbox, the program will throw an error saying the the collection (copiedCollection) has been modified. How can I make copiedCollection a true copy (not a reference) to the Listbox1.Items collection?
I have two listboxes. [code]..
I have already achieved above but the main difficult part is I also want numbering in listbox2 to go green or red based on listbox1 item (Corresponding items)
in form1 i have two listboxs listbox1 listbox2 loadbutton and savebutton this code will write listbox1.selecteditem into a txt file and loadbutton will load info in listbox2 but i want when i click loadbutton it check if that item is already exist in listbox2 , if not so write selected item from listbox1 and if that item is already exist in listbox2 then do not save it (msg"this item is already exist in listbox2")
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How can i make listbox1 item copy itself to texbox1(no using if in texbox1)
View 7 RepliesRandom name for each item in listbox2(which copies the items from listbox1)
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You can see i almost got the code, but i dont know how to rename!
Private Sub ListBox1_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ListBox1.SelectedIndexChanged
If ListBox1.SelectedIndex = (last item) Then
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i have a list box which is populated with folder names via directoryinfo, and i have a second listbox which is also populated with folder names from a user selected folder. So listbox1 is populated like this:
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How would I get a textbox to contain the text of a TXT file stored on the web? For example, lets say I have a website. I uploaded a TXT file to it. How would I get the text from the TXT file and display it in a TextBox?
View 1 RepliesNormal
0
false
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This question has been most likely been asked a number of times, but really hitting a brick wall regarding this.
The issue is that at the moment, I have to create a database using text files on VB.
So far I have managed to get the code working to add new customer and browse added records, but stuck on how to output/input back and fore to a text file, to store information, and after this input/output the text file to a DB ( Not worried about this at the moment)
Public Class Customer
Dim CmrColl As New Collection 'Create the new collection. Think of this as an array of objects.
Dim itemCount As Integer = 0 'A variable to help us scroll through the objects later.
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MSDN only discusses strings, images, audio, etc.. but does not cover text files.
I have a text file with about 6k lines of short strings, each on its own line, added to my project's resources and I'm trying to .add each line to a collection. I've tried about 7 or 8 things, not all using StreamReader, but I can't find documentation on this anywhere.
Here is the last thing I tried:
Dim JunkStrings As New Collection
Dim sr As StreamReader = New StreamReader(My.Resources.shorts)
Do While sr.Peek() >= 0
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I just can't find the equivalent to this that reads lines from a text file out of my.resources.
I want to press a button and then copy all text from listbox1 to listbox2...how do i do this?
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How to Remove the Initial path from the listbox so it just displays
Film1
Film2
Was looking around google and messed about with it in college but could not find it.
One of the features of my new Vb game is the ability to modularly add and remove in-game items. However, in order to add these items I figure their effects should be recorded in code in the text file they will be stored in.In short, I want to store code in a text file and then have it run on command
Furthermore, is there a way I could put all of the code on one line?
i was just wondering if there was a way that i could compare data stored in a text file such as usernames and passwords with data input into text boxes in visual studio vb2008?
View 6 RepliesHi,in my application i have to read from an excel files and check the value of every cell i'm using an OleDb connection to open it and reading but i have this issue if some of the cells in the excel sheet is having this warning when i try to read it returns DBNull .knowing that i can not force the user for not having this warning ...i have to solve this within my code .
View 5 RepliesI am making a simple vending machine and I need to store the amount of drinks bought and money stored in a text file. When the vending machine opens it needs to load from there.
View 7 RepliesNearly identical to How can I get every nth item from a List<T>?But I'm having trouble turning
List<T> list = originalList.Where((t,i) => (i % 5) == 0).ToList();
Into VB.Net code.
is there anyway to make listbox1.item1=textbox1.text? or the first row of richtextbox1=textbox1.text?
View 1 RepliesI have created collection and adding values in the collection, later I need to find if uer passed value is exist in the collection or not, I use contains finction to find the answer but it always returns false even though user passed value exist in the collection list. here is my code:
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This is my code.Private Sub cmdDelete_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdDelete.Click
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I want to do something different on the last KeyValuePair of the Dictionary I'm iterating on.
For Each item In collection
If ItsTheLastItem
DoX()
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Here is an example of my xml doc:
<?xml version="1.0" encoding="utf-8"?>
<employeedata>
<employee>
<firstname>Bob</firstname>
<lastname>Anderson</lastname>
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However, only the first phone number (Office) displays in the listbox. The phoneinfo collection has both <phone> elements, but the For Each statement doesn't seem to iterate thru.