I need to copy the contents of one list box to a list box on another form. I've tried a number of ways of tackling this, including copying to the clip board and then to another form.....but with no success.
View 8 RepliesThis is what I'm sure will be the first of many noob-ish questions from yours truly... I'm studying as a mature student for a Computing Degree (encompassing web design, hardware, programming and systems analysis). The programming seems to be my weak spot this year. I enjoyed C++ last year, doing basic console applications, but progamming visually with VB in Visual Studio 2008 I'm struggling!
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I am developing a program that makes it easier for users to log on to a website and search for specific data. I have the first portion finished in which I have a form with the Ax Web Browser control.
The web browser control navigates to a local website and automatically logs in for the end user. This is done by using code which automatically fills in the username and password and then submits the form to logon using something similar to this: WebBrowser1.Document.Forms.Item(, 0).elements("txtUsername").value = "user"
Once logged on - there is a search page which contains a combo box and list box. I am trying to set specific values for the combo box and list boxes.For example - the combo box on the website is titled: cbxDate and contains the following values: Today, Yesterday, This Week, This Month.
A list box titled: lstArea contains the following values: Zone A, Zone B, Zone C, All.I am trying to figure out if there is a way through code to select, in this example, "Yesterday" in the cbxDate and "Zone B" in the lstArea on the webpage.If anyone knows of a solution, please feel free to let me know. Be advised that I am using the Ax Web Browser Control.
what is the syntax to clear a combo box and also a list box?
View 3 RepliesThis program is supposed to allow the user to check items in a checked list box. If the item is checked, it goes into the Completed List Box on the right. The program then adds the unchecked items to the Pending list box on the left. I keep getting placement values (e.g. O,1,2) instead of the strings (e.g. "Key Returned") in the list box results (see photo attached)
Public Class frmCheckOut
Dim i As Integer
Dim cleaning As String = "Cleaning Inspection"
Dim damage As String = "Damage Repaired"
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I want to copy the elements from one list to another.
View 4 RepliesI am working on a functionality which requires me to copy the last line of a richtextbox into a textbox, then removing certain characters. The code I am trying is below. I have on a form a richtextbox (txtMain), 2 textboxes (TextBox1, TextBox2), and a button (button1). The first time a ran it, it worked perfectly - it selected the last line, copied, pasted it into TextBox1. Then after that first time it didn't do it. Perhaps there is a simpler way to get this last line consistently into the TextBox1. Here's the code. (See below the code for a copy of the text in"Text.txt" file):
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I'm trying to copy the elements from a List(Of Frequency) where Frequency is a custom class I have made. Everything in the other places seems alright but the problem seems to be with the copying, where it still references the original table, so changing the values of one changes the original. I've tried the List.CopyTo() method and tried converting to and array with List.ToArray and then using Array.Copy but it seems they always change the original. I've also tried a for loop and create and New instance of the classes but that doesn't work either. What I'm using it for is to pass the List(Of Frequency) to a new Task to do multitasking(), if anyone can think of a better method to pass a List(Of Frequency), or an array to to a task and have it not change the original.
View 3 RepliesIf I increase the capacity of a given list, or add elements until count>capacity, does this mean the program is actually copying the entire list's contents to a new space in memory (similar to redim preserve with arrays)? If so, than I have really been hurting the performance of my lists, as before I was inserting and adding without a second thought. This seems a strong restriction on the dynamic abilities of lists.
View 2 RepliesI have a copying error with my program. I am trying to copy the internet cache folder, and the error states that some files cannont be copied (read only maybe?) How can i make it copy, or just skip the uncopyable files?
My.Computer.FileSystem.CopyDirectory(Environment.GetFolderPath(Environment.SpecialFolder.Internet Cache), "d:My Documents")
Add Check Boxes Into A List Box?[code]...
View 2 RepliesI'm new to visual basic and I've put all forths of effort towards this program and I can't get it to work. I know one reason is I don't know how to add my choices to the first two list boxes.
Public Class Form1
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim RegistrationFee As Integer
Dim LodgingFee As Integer
Dim Days As Integer
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I am trying to create a WPF browser application that allows you to search and display recipes. The combo box presents choices, the Ingredients display in one list box and the "cooking" instructions appear in the other list box. What's happening is the first time you make a selection from the combobox nothing displays, and this could be happening because the first line of code under Selectionchanged clears the List Boxes however, it should be populating those list boxes with content, shouldn't it? Anyway, as you make other selections List boxes 1 & 2 get populated but they do not match what displays in the Combo box, i.e. if you select "Easy Taco Dip" any random recipe might appear in List Boxes 1 & 2.
Option Explicit On
Class Page1
'User Makes a selection from the ComboBox which populates List Boxes 1 & 2
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I have a listbox on my form which will contain say ten file paths. (10 items in the listbox's item collection)now i want to use the For Each next loop as below
Quote:
For Each Item in mylistbox.Items
performactionon(item.tostring)
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I have two list boxes created. One is Quantity and other is Price. When i enter price and quantity i want it to multiply and add one by one and give me the total in a label below...The problem is when I have two or more items in each list box I'm unable to come up with the total. I figured out that it will need a loop. So my question is that how should i use the loop. I haven't learn't how to make loops..
View 6 Repliescan i use the private sub validate with list boxes to ensure selection and how? Sometimes the answer is so blindingly obvious i fail to see it.
View 2 RepliesI am surely a new self-learner programmer using VB 2010 Express edition and I have a problem on writing my first code. I have designed my form and I only want to add code as events. The IDE already adds the methods when I double-clicked the button which I want to add the code on.
This question may be good on the IDE forum, but I just thought to ask it here because there may be more experts here on VB language functions. I have added the MenuSctripItems such as File, Edit and so on. How do I write the code for New, Open, Save, etc under file menu? It may sound boring or even silly, but I am here to learn and your contribution is both for me, you and the MSDN.
I'm using the free version on Visual Basic 2008 (through school).The assignment is to populate a list box from user input text. The textbook only talks about populating a list of known items.ex animalListBox.Items.Add("dog") Which works just fine, however, we don't know what the user will input.
So, how should I be thinking about this?
If I'm trying to output to a listbox, what is the easiest way I can enter a string and then a variable on the same line? I'm trying to use listbox1.Items.Add(...). Obviously outputting a string is no problem and outputting a variable is no problem, but I want to add a string and then a variable after the string. For instance:
name = "Joe Smith"
listbox1.Items.Add("Name: ", name) [or something like this]
[Output] Name: Joe Smith
I have a checked list box with lots of values and i need it so that when one of the items is ticked that a different box will display a value ie 50 so for instance i think it would be along the lines of
View 5 RepliesI'm just learning VB with the 2008 express edition.I'm trying to create a program that uses 3 list boxes.The first contains a list of products.After a search is preformed the second list box displays the products found.This is pretty simple, basic array stuff.My problem is moving items from the second list box into a third list box to purchase the product.I think I need to change the index numbers of the stuff I move into list box 3 because when I preform calculations with the stuff in list box 3, it seems to answer like its using the index numbers in list box1.So, how do you change the index numbers when you change list boxes?
View 3 RepliesHere is my code, I cannot produce the output in the lstresults.Text box
Public Class Expense_Report
Const expenseDivide As Double = 50
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs)
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I am trying to read data from a text file that will be displayed in the below format:
usernameassword
username1assword1
username2assword2
What i want to be able to do is read each line of the text fine and then split the text where the colon character is and display what is in front of the colon in listbox1, and what is after the colon in listbox2?
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I am doing a project and want to export the values of several two dimensional arrays to Excel. Searching theiles and this forum leads me to think this is doable but I can't find the procedures to get staOn another note, the present method of viewing the output is in a series of 4 side by side list boxes. Each one has been loded in order so that the output in each box lines up with the corresponding line in the other boxes.
View 5 RepliesI have a list box which is containning diffrent groups from database. On the form i have multiple controls like checkboxes, text boxes and so on. Wht i have to do when some one selects a entry from list box the others controsl should be populated from that value. User can edit the data , delete the data and so on.
View 1 RepliesI'm trying to code a program that averages a grade from a list box, but the numbers in the second list box could change, so not sure how to code that. It should list the letter grade and the average, then if they don't enter a grade, should tell you to enter a grade first before hitting the average button.
Public Class MainForm
Dim ErrorMsg As String
Dim intNum As Object
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I have five list boxes showing a field from a row in a dataset in each of the list boxes.When the list gets beyond the size of the list box a scroll bar is auto generated However, I would like to have just one scroll bar for the five boxes be shown if possible so when I scroll with that, all of them scroll
View 7 RepliesI was dividing a number from one textbox into another and when i tried something like 22 divided by 15 i just got one. Are listboxes not able to handle decimals?
View 8 RepliesI'm trining to loop through two separate list boxes to find a match for the textbox then display a message in the display label. Right now it just works on the first two zip codes in the $15 shipping zip code list box. Here is my code:
Option Explicit On
Option Strict On
Option Infer Off
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