VS 2008 Loop Causing Duplicate In List Of String?
Aug 21, 2009
Basically what happens is each time it loops through it adds a number to the end of the string, and by the end I should end up with an array full of string in a format like "111 222 333 444 555 666" but I end up getting strings like this "111 111 222 222 333 333". The weird thing is, if I add a message box in every loop it works fine, but obviously I don't want a message box pooping up every time it loops through. What is causing this and how might I fix it
The code is:
For x As Integer = 0 To (NumCards.Value - 1)
NumRep = 0
[code].....
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Aug 19, 2011
I'm trying to populate the list of a combobox by binding it to a datatable. Also, I want the selected value of the combobox to be bound to an object property so that when the selected value changes, it's automatically updating the object. However it's causing an error at runtime: "This causes two bindings in the collection to bind to the same property.
Parameter name: binding" I thought binding the dropdown list to a datatable and the selected value to an object were different properties but obviously I'm not getting it right.
Code:
Private Sub PopulateSiteSelect()
With Me.PlanSiteSelect
If _Plan.PlanID <> Nothing And _User.UserID <> Nothing And _Plan.Category <> Nothing Then
[Code]....
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May 13, 2010
Public Class CustomerList : Inherits System.Collections.CollectionBase
Public Sub Add(ByVal name As String)
Me.InnerList.Add(name)
End Sub
Public ReadOnly Property items(ByVal i As Integer) As String
Get
Return CType(InnerList.Item(i), String)
[Code]...
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Mar 15, 2009
I'm having some wierd problems with my Looping. I'm was using a thread to start a looping routine to sample the keyboard for pressed keys. The loop worked fine when I made a call to it from the thread in my form load routine. However when I just made a call to the samplekeys routine without using the thread my application will freeze and it won't load.I'm making the call in the form load routine. Private KeyThread As NewThreading.Thread(AddressOf SampleKeys)hen start the thread in the form loading procedure , but if I just make a direct call to the samplekey routine without using a thread my application freezes.Here is the the thread don't think there is a problem with it.
Public Sub SampleKeys()
Dim N As Integer
N = System.Environment.TickCount
[code].....
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Apr 2, 2010
The code I have so far is:
--------------------------------------�
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
[Code]....
PS: The code I currently has only searches for "Hello" as an exact phrase whereas I need it to search for "Hello" and get the line containing "Hello" (Whether the word "Hello" is a the beginning middle or end of the line) and duplicate it.
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Jan 13, 2012
I have a List in Do-Loop. That List is collecting some information with programmatically. So, How can I know and end the loop if List repeated in loop.
Code like this:
Dim X As New List(Of String)
Do
------
Loop While X IsNot Nothing
My code can't quit from loop and it repeats the list from first string. I want to know how can I determine the last value of list to change script like this:
Loop While X.Count = 10
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Mar 27, 2012
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)
[code].....
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Mar 7, 2009
I'd like to create a loop that dupliates a label I've made and put it all over the screen. Example of what it would look like.
For i = 0 to 52
originalLabel.duplicate ("duplicatedLabel" & i)
next i
So later I could go through all of them...
For i = 0 to 52
//... some logic to determine color... then assign it somehow
duplicatedLabel & i.backColor = Color.red
next i
[code].....
I can do that in Flash/Actionscript but dunno how to do it in VB and I can't find it anywhere.
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Jun 26, 2010
I'm building a code editor app in VB.NET (Framework 4.0) and it opens all ".por" files into individual forms consisting of a MenuBar and TextBox (multi-line).Currently I have 20 forms (all duplicates of the first on I designed) and if there are say 4 ".por" files in a directory, the first four will open up while the others hide.
I think it would be far more efficient by coding a new form For each item in form1's ListView...but I want the next so many to be a copy of the first form I designed since I spent a good bit on it.
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May 6, 2010
how can i loop until the last row of a data grid
I want to loop through a series of rows
Dim num4 As String Dim found As Boolean
HERE HOW CAN I LOOP to check if a nummber its found and if it is found then condition = true if its not found when finished the list the n condition = false For ver = 0 To 1105 (IDK HOW TO LOOP SO I DID THIS BUT DOESNT WORK CUZ IT CHECKS row FOR row RATHER THEN ALL OF THEM)
[Code]...
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Nov 28, 2011
i have wrote a loop to search for duplicate numbers within a column in a database which i have got fine but when i find a duplicate i would like to get the all of the row so if 33 was a duplicate i would like to get the following row.
33MarkWhitesideM12/07/1958Michaeluuu
I have tried to do this buy use something i saw on msnd's website:
Dim foundRow() As Data.DataRow = customerDS.Tables("Details").Select("HNCNO Like '33%'")
However if i change the line to notice the i beside the like
Dim foundRow() As Data.DataRow = customerDS.Tables("Details").Select("HNCNO Like 'i%'")
but i get Index was outside the bounds of the array. Ok i know that means that there is nothing in my array. What i would like is to find the duplicate row associated i. you will probably understand me better when you see the code.
Private Sub checkRowsForDups()
Dim customerDS As DataSet
Dim dupArray As New ArrayList
[Code].....
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Dec 27, 2009
how to make a new structure somewhat, but what I need to know is how I can do something like, GetItemByName without having to do a loop when I have a list of my structure type. What I mean by this is if I had a structure like this:
[Code]...
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Nov 12, 2010
Im coming from a background of writing vba in excel, but have go to the point where im fed up of having everything running in excel and have started leaning vb.net. i am trying to do something i have done before, but am pretty much rewriting it as having got the end i now see a better way of doing things
Normally Google is full of help full answers but today it isn't, i may be i'm doing something odd or am trying to use completely the wrong tool for the job am happy to be told either.
I am trying to take data from a text file dumped from one of our databases, i have read the (huge) and oddly formatted text file in, converted it to a 1d array = InPutArray
[Code]...
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Apr 7, 2009
I need to filter out characters like /?-^%{}[];$=*`#|&@'"<>()+,. I need replace this with empty string if it is there in the query string. I am using this in ASP pages.
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Jul 29, 2011
I want the Function to accept List(Of String), Array & String and similarly return List(Of String), Array & String respectively. The Function simply adds a string (month) to the input collection. I just want to use it for string, array and list with needing to think of conversions.
[Code]...
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Nov 29, 2009
I have a program where you have three entries, CD name, artist, price and it goes into a listbox and .txt file when closing. I have to have a message box if you enter the same CD name. I have a code to open the .txt file and compare strings but I need to change it to compare only the CD name and not all three entries. Is there a way to do my string compare against my listbox without opening the .txt file?? The program loads the listbox from the .txt file when opening. Private Sub btnAdd_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnAdd.Click' adds CD information to the list box
' declare variables
Dim strName As String
Dim strArtist As String
Dim strPrice As String
[code].....
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May 31, 2012
I have a List(of String). For example: {"C1", "C12", "C10", "C1", "C6", "C22", "C1", "C6"}. I am trying to write a function to give me a list of duplicates: {"C1", "C6"} in the list. Each duplicate will be listed only once. The function I wrote does give me anything back at all. I can't figure out why. how to translate that syntax into VB.net since I am not up to speed on LINQ yet. It is here: How to get duplicate items from a list using LINQ?
''' <summary>
''' Given a List(Of String), returns a list of items that are duplicated in the list.
''' Each duplicate returned is unique.
[Code].....
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Jun 22, 2011
I have a list of 100,000 urls in list(Of string) which can contain urls in the form.[URL]..i have tried using a combination of regex and the Uri class, but that didn't help, so i dumped the code. i also tried using this code, but it will only remove duplicatse of exact form, since its not domain specific.
list = new ArrayList<T>(new HashSet<T>(list))
How filter these duplicates and keep just one of these url if it contains the same name e.g yahoo.
all URL are of different domains, but can usually have duplicates like the example i gave above
also, am using .net 2.0, so i can't use linq
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Oct 1, 2009
I'm looping all the properties in an object via reflection:
For Each p As PropertyInfo In values.[GetType]().GetProperties()
If p.CanRead Then
'Do stuff
End If
Next
how to determine whether the property in question is a generic List(Of T)? If it is I need to loop the list itself.
I've experimented with GetType and TypeOf but have not managed to get anything working.
To clarify, I want to keep this generic. I do not want to specify the type of T, I need to loop the list items and call the ToString method on each item. T could be one of a number of different types (application specific reference types). Is it possible to do this without specifying types?
(VB.NET 2005 with .Net 2.0)
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Jul 29, 2010
This is what I want to do as seen in C#(loop against a list and fill another list from its data using Linq)
[Code]...
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Jun 16, 2009
Possible Duplicate: splitting a string i have a string which looks like this:[URL] i need to get each of the numbers and put them in an array in this order: 0, 50, 100, 100, 200, 400, 218, 9.8, ???, 6.65, 6.31 etc... i have the following code but for some reason it only does the first column, it only gives me 0, 50, 100, 100, 200, 400, 218, 9.8, ???
[Code]...
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Mar 11, 2009
my problem is in subject can u please give me a easy way to do it?
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Dec 15, 2010
I got an object of List<List<string>>I need to bring this into a ist<string>I have no idea how to do this with LINQ.
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Mar 25, 2010
When my form is loading, it executes a Method called populateListBox().As the ListBox is populated, it inevitably triggers ListBox.SelectedIndexChanged, which triggers this
Private Sub lstLabels_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles lstLabels.SelectedIndexChanged
Try
buttonCheck()
Dim pathText As String
[Code]...
If I stick the Try...Catch in, allowing it to bypass the error, everything loads fine and when I double click an item in the ListBox, I have a MessageBox setup to show the SelectedValue, and it works fine (it shows a number like it should). Even if I put a MessageBox in the SelectedIndexChanged event, I still get the same error on the MessageBox line during the loading of the form.
Is this because the form is not fully loaded that I get this error? And what would be the proper way to handle this? I need this code in the SelectedIndexChanged for when the user selects a new item, so how do I keep this error from happening (or maybe even the event from triggering) during form load? Because I'm sure having a Try...Catch is not really an accepted form of "fixing" an exception; it's just ignoring it.
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Oct 18, 2010
What would be the fasted method of get a string list of all values within [] in a string of text? For example: [client_name], are you are doing today? My name is [my_name]. The list of strings would be:
[Code]...
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Oct 8, 2011
I have added a module to the project. Inside the module I have the following
Public Function ListOFT() As List(Of String)
Return ListOFT
End Function
When I try to add something to ListOFT I get:
Quote:
Object reference not set to an instance of an object.
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May 27, 2009
I have a DataGridView and i want to build a string list from that. i have tried many way wothout a good result.
I need to build this list of string and after that to make a single string to send it via e-mail
[Code]...
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Sep 23, 2009
For the life of me i can't figure out why this is throwing a first chance exception error. The error I'm getting in the immediate window is
Quote:
A first chance exception of type 'System.ArgumentException' occurred in Microsoft.VisualBasic.dll
[code].....
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Jan 13, 2012
I'm sorry if it's a duplicate of some question but this is specific on Vb.Net Regex function.
I need to remove any occurrence of 3 or more duplicate characters on a given string. For example:
Dim strTmp As String = "111111.......222222 and 33"
Dim output As String = Regex.Replace(strTmp, "????", "")
Debug.Print(output)
The "????" part I guess should be the Regex expression, which I must assume I know almost nothing about.
I don't know if that's the correct syntax. But I need the output to come as:
"1.2 and 33"
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Oct 18, 2010
I have this vb code in my asp.net webservice.
<WebMethod()> _
Public Function GetUsers(ByVal prefixText As String, ByVal count As Integer) As String()
Dim UsersList As New List(Of String)
[code]....
However, This returns all the users from my user table. I want to get just the users where the fullname is like the prefixtext variable that is passed in to the function.Now I need to use LINQ(the only way I can think of). But how do I change my code.
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