I was wondering,does anyone have the class code of listbox?, I need I t to support increments and decrements in decimals,such as 1.0 to 1.1 and viceversa, the normal listbox does not support it just integers.
View 1 RepliesI'm designing a small GUI Windows program that allow staff at a cinema to reserve seats for customers. There will be a total of 60 seats in the cinema. I have two classes in my program:-
1.) MainForm.vb - used for I/O actions and user interaction
2.) SeatManager.vb - used to hold and handle the background methods and functions that make the program work
Here is the code for my MainForm.vb class thusfar:-
Public Class MainForm
Private Const m_totalNumberOfSeats As Integer = 60
Private m_seatManager As SeatManager
[Code]....
Basically, when the program opens, the lstReservations list in the MainForm class will be populated with a total of 60 (m_totalNumberOfSeats) entries to represent 60 seats. Each of these seats will contain the index number from the array m_nameList; this index number (+1) will represent the seat number and then in the lstReservations list, after the seat number, I'd like it to contain the respective entry from the m_nameList array. As all entries will be held in RAM, when the GUI is opened, all m_nameList array entries will be empty. As the user uses the program, they can highlight a row in the lstReservations list and then use the GUI textboxes to enter the customer's name which will then be populated into the respective array entry.
how to, when the GUI opens, ensure that the lstReservations list takes all of the blank entries from the m_nameList array and from there, I can highlight a row to carry out further methods on?
I have a listbox and i populate it with data in my code like this on the page load....
[code]...
So say one item in the list is displayed Ted Jones (123) and its valuefield should be 123. Im just not understanding what i am doing wrong here.
I need to create unit testing project for my current website. The currentw ebsite si written in VB. All unit testing examples are using interface to create mock object. My current VB class does not implment any interface. Can I add interface and implement it to my current class and functions without affecting or changing codes to any pages in my website that call the functions? For examples my current class is like:
[Code]...
my proble is the following: I have a class MyClass and another class Modifier, which has a method ModifyMyClass(ByRef mc as MyClass) that receives a MyClass instance as ByRef parameter to modify it. A smell of the code is:
[Code]...
I have a very simple class that is located within my App_Code folder in my VS2008 web application project. I am trying to instantiate an instance of this class from my code-behind file. Intellisense does not seem to be seeing my class and I am not sure why. I am using VB.NET which I am admittedly not that familiar with as compared to C#. Perhaps I am missing something. I would bet it has something to do with something I am missing in VB.NET.Here is my simple class (for testing):
[Code]...
I recently found this code (provided for third party use on another VB site), however,ll of my attempts to insert it into a class library have failed.I open a new class library and past the code in, and immediately get several errors pertaining to how certain objects can't be found. I find it it is crucial to use this code, unless someone can suggest to me another example of existing code that will do the same thing: make a restricted textbox who imputs can be restricted, that can handle pasting, shortcuts, text property setting, and script-entered text.
Option Strict On
Imports System.ComponentModel
Public Class RestrictedTextBox
[code].....
I've been working on a project the last couple of day with the help of a lot of you out there. I've more or less finished the design of the interfase, but there are stange this happening with the form. I can say much about what is wrong because I dont understand it, but I would like to. I have added the form Class code and the Designer Code, is that enough or is more required? Theres a msgbox that popup in the form Load event which I placed there to see what I could learn about the GraphicsBuffer.
Imports System.Drawing
Imports System.Drawing.BufferedGraphics
Imports System.Drawing.BufferedGraphicsContext
[CODE]...
I had the following code:[code]How can I convert this code to listbox code? Because the above code is using datagridview but I would like to change it to listbox.
View 1 RepliesError Unable to cast object of type 'System.Data.DataRowView' to type 'M8_Rating.myItem'.Any idea what the deal is?
Dim MyItems As New List(Of MyItem)
For Each selItem As myItem In lb_forms_SecurityMgr.SelectedItems()
MyItems.Add(New myItem With {.Description = selItem.Description, .Value = selItem.Value})
[code].....
Ive just started vb.net programming, and Im trying to make an application to collect twitter usernames and addresses - this is how all the links look:
<a target="_blank" href="http:twitter.com/USERNAME" class="twtr-user">USERNAME</a>
So in the tag of <a>, for each element, there is a class called "twtr-user" So basically, is there a way to go through the webpage and add each username and address to a listbox? This is what Ive come up with so far:
For Each temp As HtmlElement In wb.document.Links
Dim str As String
str = temp.GetAttribute("class")
[code]....
The problem is that (1) this doesnt work at all (2) Is there a way to add the href address and also the outer text?
Ive just started vb.net programming, and Im trying to make an application to collect twitter usernames and addresses - this is how all the links look:HTML
View 4 Repliesusing a Binding Source to Bind my Collection to a ListBox? I can bind the class to the binding source, but im not sure how to let it know what type of list it is, or how to display the correct item.
I'm trying to get the listbox to display the ItemNames. Here's my class and collection class.
<System.Serializable()> Public Class SurveyItem
Private itemNm As String
Property ItemName() As String
[Code]....
Im creating a registration application where i have a listbox that displays a Course Name column and a Credit Hours column. I also have a textbox that keeps a running total of the credit hours of each course added to the list. When i remove a specific item from the list, i also want to subtract the number of the selected item from the running total in the text box. Essentially i just want to subtract a certain part of a list item from a variable i have.
View 1 RepliesI am trying to read a line from a file and add it into a listbox. The SelectedIndexChanged event of the listbox places the selected item (hence, the item I added from the file) into a variable that is declared as a Store (my own personal class.) I can easily add the line from the file into the listbox, but I run into a problem with the SelectedIndexChanged event. When I click on the item in the listbox, I get an error that says "Unable to cast object of type 'System.String' to type 'WindowsApplication1.Store'." (I guess this is because I added an item to the listbox that is from a file.) I tried a variety of methods of casting, but nothing seems to work. What can I do to fix this?
View 2 Replieshaving trouble trying to add different items to the listbox. What happens is that the item that's in the listbox gets redrawn every time I try to add new item, why is that?
vb.net
Public Class ColoredListBox
Inherits System.Windows.Forms.ListBox
[code]....
I'm trying to get this form to display in the listbox the address from the info from the textboxes and it works except one problem, it displays all on one line. Its seems as if it accepts the ","'s and " " for the address but ignores the vbCrLf line separator. What am I doing wrong: Here is the code for the class:
[Code]....
I'm trying to create a class for storing data on People with another class to store their Bank Transactions.Ideally, this all be hidden away and leave only simple statments, declarations and functions available to the programmer.[code]I know this is possible as these exist in the Listbox Class though can't figure out how it's done.
View 2 RepliesI am adding object directly to a ListBox, and inside this class, I've got a BitmapImage object.I'm using an ItemTemplate :
<ListBox.ItemTemplate>
<DataTemplate>
<StackPanel>
[code].....
I am trying to write a class to implement search as you type. e.g. a form has a textbox and a listbox. Each time the textbox text changes, the list is the list box is filtered accordingly. E.g entering "ha" in the textbox would cause the filtered listbox to display 'I plan on implemtneting a sayt class.(see example below)
The thing I am having problems is working out how the two controls will 'talk 'to each other.
e..g when the textchanged event fires for the textbox, how does a sayt object 'know' that it needs to refilter the listbox?
[Code]...
I'm trying to figure out a way to sort the entries of a listbox... but in a different way instead of the obvious one (sorted property). First of all, I need to explain how the items are populated at first:
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On my application I'm trying to make it available for users to Add and Delete Locations (which come with number of miles).Basically I have a Form, with a listbox and a tool which will allow the user to add a location along with it's distance.I have a button called "Add a destination" and under this button, I have this
filename = "destinations.dat"
FileOpen(1, filename, OpenMode.Random, , , Len(Onedestination))
numberofRecords = LOF(1) / Len(Onedestination)
[code].....
I created a VB.NET Class, and created a strong key, and added it to the GAC using the GacUtil. That part has gone smoothly. The Assembly is installed in the GAC and seems to be installed/configured correctly.FYI, the assembly is a Class called Tester, that exposes one public static method called HelloWorld, which returns a string, "Hello World".The next step was to create a test web application (VB.NET and ASP.NET 2.0), using Visual Studio 2005, Windows XP SP3. I created the test web application and added the following to the web.config file's configuration section.
<assemblies>
<add assembly="BenGACTest, Version=1.0.0.0, Culture=neutral, PublicKeyToken=3e5b6cecb56999ca" />
</assemblies>
I then added some inline code to my aspx page as follows:
<div><%=BenGACTest.Tester.HelloWorld()%></div>
When I run the page in the web browser, indeed everything works as expected. The page outputs "Hello World" and all seems goodHowever, I don't know how to use this code in the code-behind page.I try to import the assembly, just like "imports system" and it doesn't appear in the IntelliSense.Also, when I try to add the assembly as a reference to the project, the assembly is not found in the list of installed assemblies. I believe this is because the list is pulled from the registry, not from a dynamic list of installed assemblies.My goal is to add the assembly via the web.config file, not by adding it as a project reference, and to use the assembly in the code-behind page.
I understand that we can set the various style attributes from code behind using :
divControl.Style("height") = "200px"
But how to set it's class instead of declaring each of the styles from code?
I am debugging a VB.NET forms program which calls into properties and methods of a class which is part of the same project. I put a break point in the form code but when I step through, it does not step into the class code.
View 2 RepliesI want to write code that complete task of putting 0 to 1000 via thread in listbox. I want to start 10 threads at startup and complete task.
All threads should work equally. Each thread will write 100 numbers. First start from 0 to 100, second from 100 to 200, third from 200 to 300, so on upto 10th.
I have written code but it has problem.
Dim num As Int16
Dim startLoop As Int16
Dim endLoop As Int16
[CODE]...
I am working on an assignment for Visual Basic, trying to write a program that will enable a user to enter a number and have it display that number and show in a listbox how it would multiply with numbers 1 through 12. An example of this is:
5 X 1 = 5
5 X 2 = 10
...
[code]......
I created a listbox and button in my application using vb code.When the user select an item in the listbox and click on the remove button, the item will be removed from the listbox. I know how to remove the item in the listbox, but I don't know what coding to add to activate the click event on the button.
View 4 RepliesI am having some problems trying to find a code for addAttchement method to my Listbox, I using Access 2007 and window application and VB.
View 7 RepliesI'm very confusing about this code .When push Button1 ,the code not working
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