I'm supposed to create a linked list and add/remove items with a push/pop. Currently I can only push 2 items and pop one before it stops, and I'm not sure what I need to do to fix that.
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I am nobies in data structure and i really want to know how to remove specific node in linked list in vb.net
View 1 RepliesI have a listbox in my program and I want the user to be able to remove all Listbox Items with the click of a button.
I Figured this would work, Listbox1.Text = ""
i am making a card game and you get three cards in your hand at a time, i am using a list and random assigning to set the cards in my hand as different numbers but they keep being all the same numbers, here is what i have, what should i add to make it be a different number for every one
Dim hand1 As Integer
Dim hand2 As Integer
Dim hand3 As Integer
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Good example using the List(T) object. I need to be able to add and remove items from it.
View 7 RepliesHow do i remove a selected item(s) from a list box called "LeftList" and add it to a second list box called "RightList"
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Public Class GroupSelect
Public Property RowNo() As Integer
Get
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i am writing a program that reads a excel report from accounting software with our weeks orders on... so basically the program reads a list of around 100 items which all works fine.I also have a database that holds info on each item, when the excel sheet is parsed the software checks to see if any new items have been added to the list that are not on the softwares database. this is where i am having the issue.I have two lists: ItemsOrdered & ExistsingItems.
All the items ordered this week are in ItemsOrdered and all the items not in the items in the database are in the ExistsingItems list. using these two lists how can i find items that are in ItemsOrdered but not in ExistsingItems.
I have a List object and I want to remove the duplicated items but leaving at least one of the duplicated items in the list;I wrote something like this however I would optimize this code for better performance, is there something faster?
Const chars As String = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"
Dim rnd As New Random()
Dim mylist As List(Of String) = Enumerable.Range(1, 100).Select(Function(i)
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i i have a listbox and 1 button in my application thing i want is when i click on some listbox item auto press that button or when i click on some item in list box it remove selected items from list box just with mouse click
View 3 RepliesRecently I've found how to add a link to an item in Visual Studio so that you can reference common or shared files between projects. Editing the original propagates the changes to the projects where the file is referenced. But you can also edit the reference item and the changes are reflected in the original file, is there a way to prevent this behavior?
View 1 RepliesI have a form with a text box and a form with a list box. I would like to be able to push a button on the form with the text box and have it be added to a list box.
View 3 RepliesHow to create collection class and add list of items to collection class that stores list of items?
View 3 RepliesI badly wanna Serialize a Linked List into XML and deserialize it back when required. I didn't get proper results when i did google. But, I learnt through the following link that it's not possible to do so. [URL]
View 4 RepliesHow can I create a list (of my custom structure) to hold only unique items? This list should be created from another list.[code]...
View 5 RepliesI have a VB 2010 class like
Public Class cStar
Public Name As String
Public Magnitude As Single
End Class
I want to add stars into some doubly linked collection or list that is ordered by magnitude.
I tried to create my own list cList based on collection
Class cList Inherits collection error - collection not inheritable End class
I had hoped to enable things like
Dim Star1 as cStar
Dim Star2 as cStar
cList.AddFirst(Star1)
cList.AddLast(Star1)
Star2 = cList.Behead
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so i have a linked list of employee objects. I now need to iterate through the linked list to see if i can find a matching object. I could iterate though using the [code] What i'm not sure of is how i get the employees[x].EMID out to check it
View 3 RepliesI have a question about doubly linked list the uses student names and ages and creates them into node objects. the studentItem class is already created for me I just have to create the nodes that will hold each item entered. I am required to fill in the code needed for each function givien in the ICollections library that is setup for me. I dont know where to start out I'm trying to create a NodeLink class and from the class use the information to create the guts for the add function for my Nodelink Function I have the following:
Public Class NodeLink(Of T)
Public node As T
Public NextLink As NodeLink(Of T)
Public PrevLink As NodeLink(Of T)
Public Sub New(ByVal StudentItem As T)
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I'm looking for a simple and efficient way to sort up to 60,000 strings that are 3000 chars long in reverse order and save them back out to a text file.
I originally thought of a doubly linked list, but then I realized that we aren't privileged enough to have pointers.
Is there some other way I can create an efficient linked list without pointers?
I need to copy an array to a linked list OR transform the array in a linked list.How this can be done in .NET (C# or VB)?
View 3 RepliesI have been working on a number of card games. Important, of course, is shuffling the deck.I have come up with a few different ways to do this. Currently I do not shuffle, but to deal a card, I lay out the deck in order, selecting a random number between 1 and the number of cards remaining and selecting that card. I then remove that card from the deck so that another card can be picked.There are two main ways to do this, and I am trying to figure out which one is optimal.The first is to have an array of cards. When one card is dealt, a new array is formed with that card missing. I kind of like keeping the array size exactly the size of the deck, but perhaps this is not efficient. So, the first array has length n and the new array after the card is dealt has length n-1. VB.Net makes it simple to change array sizes around like this.
View 1 RepliesI am writing a small program to update data in a SharePoint list. Now where I cannot develop or use applications for SharePoint unless I am on a SharePoint server, I thought I would cheat the system by using Access to link to SharePoint lists, and then use Visual Basic to play with the Access tables. I need additional functionality other than what VBA can provide me, so that is why I am using the VB layer.Is it possible that this is not permitted? Whenever I try to update an item in the table, I receive the message:
"cannot update '(expression)'; field not updatable"
The word 'expression' here is not a filler I added, this is the actual error.If I try to make the edit manually in the table using Access, it works fine (I haven't tried it through Access VBA yet...).
How my code works is this:I have a Dataset added to the project which connects to the Access database. I add one of the tables to the dataset and create a Class object to reference the table adapter (essentially a Data Access Layer). I can read all of the data fine, and when a change is made in SharePoint, my application sees the updates when it refreshes. But when I try to write back to the table I get the error message above.
For
Each r As
DataRow In TableAdapter.GetData.Select("Name LIKE '*" & FileName &
"*'")
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There are other columns in the table and some of them have default null values. I only want to update these two fields, but it almost seems like this is not possible. I thought I might be somehow opening the Dataset in a Read Only mode, but I can't seem to find that option anywhere.
i have a listview box full of items, image below:
when i click a button i would like a msgbox to pop up displaying how many are alive.
How would i do this ?
Also how would i remove all items that status is "Dead"
This overload resolution failed error that occurs when I try to add the newly created integer array as an item in a generic linked list as per the following?
Imports System.Collections.Generic
Public Class GraphData
Dim mInput As Byte()
Public Data() As Integer
Dim SignalData As New LinkedList(Of Integer)(Data)
Private Sub Paint(ByVal sender As Object, ByVal e As System.Windows.Forms.PaintEventArgs) Handles Me.Paint
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First timer here, I love the site!
Running:
- VS 2008
- Sharepoint 3.0
- Access 2007
- Windows Vista (The machine I'm developing it from)
History: (Do excuse me if I don't reference different methods I've taken so far correctly, I'm still learning!) I am building some search software for a law firm that I work for in Australia. It's all coming along really well, but I seem to have hit a snag getting data out of sharepoint lists and into my project!
I first attempted to add a web reference to sharepoint and after a while was able to pull in all of the data from the lists, fantastic!(OR NOT!). The issue then was when I attempted to load it up into an array using XMLNodes, whilst it loaded up fine and I could see all the data, if there was a null value in one of the columns, it wouldn't pull that null value across, therefore, I couldn't really use the data...
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I would like to create a little list in my Windows Form showing a list of custom colors with their 'friendly names'. Technically it can be anything (ListBox, ListView, Panel etc... whatever).
I simply want it to look something like this:
I would like to store data for this list in a simple TXT file in such form:
Quote:
Blue,Blue
Red,Red
#F6A118,My favourite color
#004080,Another color
And of course I would like each element on such list to be clickable, so if I'd click 'My favourite color' it should return the color's HEX value (#F6A118).
I am very familiar with VBA and have been using access and excel to create applications that connect using ADO and/or linked tables.I'm looking to start developing simple Windows applications for my company using Visual Basic, that will connect to Oracle and SQL Server Databases using ADO. What do I need to accomplish this? If I purchase Visual Studio 2008 Pro, will it come with VB? And do I need anything in addition to this in order to connect to SQL or Oracle databases using ADO method?
View 7 RepliesImports System.Collections.GenericI
mports System.Net
Imports System.IO
Public Class Form2
'Dim filename As String
Public ftpSettings As FtpClient
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I don't know what's wrong, i can only move the 1st item but the second and so on doesn't make any changes. It remains in a listbox.
So I want it to remove any text in the list box that has a "Job" in it and just replace it with a blank nothing.
Like if the listbox looked like this
Yardjob
jobsong
redjob
then it would change it to this
Yard
song
red
I also would like a way of removing any blank items from the listbox.
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I need to load a list of tables and linked tables in an MS Access Database into a combo box. I have this.
vb.net Imports System.Data.OleDb
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1. How do I load the access tables and the link tables into my combo without the system tables showing up?
