I have a program that re-sizes items in an array but I can't get it to work. I have:
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It gets to the Remove but it just doesn't delete the characters from the string.
I have a situation where a user can enter just about anything they want into a text box.Whatever they enter in the box, I need to split the string into an array of strings where each item is one word. For example, if the user enters All State Insurance, I split that into a string array:
sParams(0) = "All"
sParams(1) = "State"
sParams(2) = "Insurance"
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I have button that adds element in array and displays the item that is added in array in the listview, And also i have button that deletes it but it's not working.
Here's the code:
Private Sub btnRemove_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnRemove.Click
Dim i As Integer
Dim new_array As New List(Of String)(movieArray)
With ListView1
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Essentially I am trying to replicate the Windows 7 (In-Windows) activation key TextBox form. The Form where it will auto capitalize letters, remove or deny all non alphanumeric characters except dashes every 5 characters that will be auto-input.I assume this can be done with a fairly complicated replacement Regular Expression but I cannot seem to create one to fit the needs.
This is an Example of what I have right now, but it creates an infinite loop as it removes all characters including dashes, than adds a dash, which changes the text and removes the dash again.
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I'm having a problem recently, a logical issue so hard to determine various examples.I need the text that is inserted in textbox, which has been altered or modified or twisted to have a proper format through line accordance and constant white spaces etc. And some cases I stuck at defining the If statement within the loop. Here's an example of a text I'm trying to reformat.[code]I'm using Microsoft Visual Studio 2010 Ultimate version with Microsoft SQL Server Management Studio. This code is being fired on mouse click event of a button control. This is a snippet of my code there are more filtering after but here is what should be changed.
View 11 RepliesI need listbox with few items in my project and I want each item to shown in different font size. Example is the VbCity editor FontSize box.
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I'm wondering what the proper way to remove an item from an array is. The way i am doing it at the moment is:MyArray(0) = NothingIs this the best way to do it as i'm having problems with my programme and i think it may be something to do with this
View 10 RepliesI've searched on the Internet and I can't find a solution to this simple problem. I've also looked on Microsoft's MUCH improved MSDN site and haven't found a solution, so here it goes. I'm trying to remove an entry from a list of class and it doesn't get removed. Here's a sample of the code I'm trying: (I renamed the class and variable names to make it a simple example)
Dim lstClass As New List(Of TheClass)
Dim mClass As TheClass
I tried this first
mClass.filename = "The Entry to Delete"
lstClass.Remove(mClass)
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I have a byte array with contents from a file in it, but I want to trim / remove the first element from it [byte(0)]. I've searched for days and experimented with a hundred different methods but they don't work.
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Imports 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.
Currently I have a class that checks for apostrophes and doubles them up like this
Shared Function CheckForBadCharacters(ByVal MyString As String)
Dim finalstring As String = MyString
finalstring = Replace(finalstring, "'", "''")
Return finalstring
End Function
Works fine, of course i need to reverse this when retrieving - however is there a better way ?
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I have a word that O want to alter. The words are numeric:123457I want to use the first two numbers and the last number. In this case it is 12 and 7.
View 2 Replieslbltime.Text.Replace(lbltime.Text, lbltime.Text.Length - 2)That does nothing, no error but it doesnt remove the last 2 characters from the string.
View 8 RepliesWhen I try to remove the last few characters of a string, I get an index out of range error. I am using the following to remove the characters from the end of the string:
objJSONStringBuilder.Remove(objJSONStringBuilder.Length - 1, 6)
The string has <hr /> at the end which I want to remove.
Removing the first 8 characters from a text string. How can I do it?
View 6 RepliesI need to parse an alphanumeric string leaving the characters "0-9", ".", "/" and space & remove everything else. I use "[^0-9./ ]" as my regex string and it works well. But now I have a couple other conditions that I dont know how to handle with my regex string. I actually only want to keep the "." character if it falls between two digit characters (ie. 3.5), otherwise remove it. And also I need to replace any "-" characters with a space if it falls between two digit characters (ie. 2-1), otherwise remove it.
View 1 RepliesIf I want to remove 2 characters, or a specific letter or character from a string in VB, how would I accomplish this?
A usual input would be
"63.0" in string format
and I want it to be
"63"
So I have this
Dim a as string = "Hello"
Dim b as string()
now I want b(0) to have "H", b(1) "e", b(2) "l", and so on.
btw a changes everytime, so don't just say do b(0) = "H"
I am using a collection to store data from a text file which I am letting the user load and I am using the .split to split and sort the data into alphabetical order and remove repeating words.However, I am having a problem removing unwanted characters from the final array. For Example, "This is the text file that I want sorted. It is random text not yet sorted"
View 6 RepliesI have recently developed a serial port communication program to access my hardware firewall and its connected to the device via a converter usb to rs232head plugged to a rs232 to an ethernet cable. this ethernet cable then plugs into the device console port.
my program functions similar to that of TeraTerm. an opensource hyperterminal program written in C++ but i decided to do one for vb.net
Alright to cut the story short, i have successfully coded out the program to accept incomming data from the device but however, i'm also receiving ansi escape sequence along with it and i have no idea how i could implement codes to remove these. i have spend 3 weeks trying to look for vt100 emulation codes written in vb.net but i found none so far. most are written in c++. here's an image to illustrate the problem which im facing.
The image below is a screenshot taken when the i ran both the programs together. The bottom is tera term 3.1 and the top is my vb project which i made using msdn's example and improved on the codes. basically tera term was able to interpret those escape sequence and display accordingly to that of the vt100 terminal display. I have spent time reading on regular expressions using the inbuilt function regex in visual basic and tried parsing some strings but its not working. i guess its far more complex than i thought.
I am trying to search through listview in VB.net 2008. It works fine with small list, but when the list is big ( around 25000 rows), if I search multiple items , it fails saying that index is not valid. Obviously what I understand is , it it tryiong to remove an index does not exist. But I am unable to figure out where exactly it is going wrong.
PS : while it is doing search through the entire listview, I am incrementing index = index+5 becasue I want the next 5 rows to be in the selection state as well.This is the code Private Sub TextBox1_KeyUp(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles TextBox1.KeyUp If (e.KeyCode = Keys.PageDown) Then
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I am populating a combobox with data from a .txt file; however, there are 1000 entries but only 4 different possibilites 1, 2, 3, and 4. How can I have the combobox only allow a selection of the 1-4 with repeating all 1000 numbers?
View 3 RepliesSo I have three listboxes, LB1 is an uploaded list, LB2 is a master list, and LB3 is generated from LB1 items that are NOT in LB2. I have a button that replaces the selected item from LB1 with the selected item from LB2, woot.Since LB3 is a subset of LB1, I want to be able to select the items from LB2 and LB3 and have it replace the item from LB1 but running into some trouble with finding the appropriate item without selecting it. [code]
highlight Fred from LB1 and Freddy from LB2, click and Fred becomes Freddy in LB1. I want this same change to happen but by selecting the "Fred" located in LB3 (If LB1 is hundreds of names long, I don't want to have to sift through it and only make the changes that need to be made). [code]
I have button that adds items to a list box and a button that removes it...the one that adds it works great but when i select an item to remove it doesn't remove it..i don't know if there's something wrong with the code or not..
Private Sub btn_Remove_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btn_Remove.Click
list_MyOrder.Items.RemoveAt(list_MyOrder.SelectedIndex)
prices(list_MyOrder.SelectedIndex) = 0
MsgBox("Select any item to remove")
End Sub
Im working on a school project where i add items to a listbox in two columns. The first being the name of a course and the second being the credit hours of the course. I can add and remove the items just fine BUT when i remove an item im also required to subtract the credit hours of said item from a variable i have called "totalhours." Essentially im trying to figure out how to subtract a certain piece of a selected listbox item from my class level variable.
View 2 RepliesI got this code but it won't work...
For Each item In ListBox1.Items
For i As Integer = 0 To ListView1.Items.Count - 1
If item.ToString = ListView1.Items(i).Text And ListView1.Items(i).SubItems(1).Text = TextBox4.Text Then
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It only deletes 1 listbox item while there are more items that have to be deleted.after debugging i get this:List that this enumerator is bound to has been modified. An enumerator can only be used if the list does not change.
I have a form with 2 listview's and I want to remove that items in the listview1 that area duplicated on the listview2.
View 8 RepliesI have a generic list that I'm removing items out of using List.Remove(Object). I have been removing items but whenever I get to the fifth item I'm removing it fails and does not remove it from the list. It doesn't seem to matter what I'm removing but everytime I try to remove five items it fails on the fifth item.
View 4 RepliesI want to remove items from a listbox 1 at a time. I have two timers set up to remove the two types of items that are put into the list box. When there is a "Player 1 killed Button 1" following a "Player 1 killed Button 2" or vise-versa they get removed at the same time. Is there any way to prevent this?
Code:
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim XP As Integer
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If I have 3 times selected and when I click "submit" for example I want all my selected items to be removed, but when I try to do this only my first selected item is removed.
ListBox.Items.Remove(ListBox.SelectedItems)
How do I remove all 3 items from the list box at the same time?