VS 2008 Array From Form To Class?

Mar 9, 2010

I have an array of pictureboxes in my form and i want to use the picture boxes in a class. I know you have to use a constructor for this but i'm not sure how to code it exactly. I have tried many things but it just does'nt want to work..here is the code of my array in the form and the constructor

Dim Deler As dealer Protected cardPlace_array() As PictureBox = {picDKaart1, picDKaart2, picDKaart3, picDKaart4, picDKaart5, picDKaart6, picDKaart7, _ picUKaart1, picUKaart2, picUKaart3, picUKaart4, picUKaart5, picDKaart6, picUKaart7}

[Code]...

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Transferring A Form Array Into A Private Class Array?

Mar 15, 2010

If I make the following array in a push button event and I want to put those array variables in a class array. How do I do that? I am just beginning to learn about classes in vb.net but I am having problems using classes and arrays.Is there any good tutorials on that subject.

[Code]...

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VS 2008 Adding Class Object To List Or Array In A Different Class

Jun 21, 2010

I am trying to create an list or an array of a class.Here is my "Ingredient" class that I am trying to create a list of:[code]In my "recipe" class, I am want to create a list (or array) and I am drawing a big blank on how to do it. Can anyone point me in the right direction?

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VB 2008 Class Array Declaration?

Jul 19, 2010

How can i declare a public array of class instances, in Visual Basic 2008 express?

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Insert Data Into An Array Of A Class In VB 2008

May 3, 2009

I declared made an array of my class like this

Dim
myClass(3) As Class1

Now when I try to enter data like this:

myClass(0).s = ("Test")

I get an error "Object reference not set to an instance of an object."

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Form Inheritance - Error1Base Class 'MenuStrip' Specified For Class 'Lesson2' Cannot Be Different From The Base Class

Apr 15, 2010

I have put this code in the global form Inherits System.Windows.Forms.Form. And then in the form that will inherit this from the global Inherits MenuStrip. "MenuStrip" is what the global form is called. But keep getting this error: Error1Base class 'MenuStrip' specified for class 'Lesson2' cannot be different from the base class 'System.Windows.Forms.Form' of one of its other partial types.

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VS 2008 Dynamic Array - Create A Public Class For Insert And Delete Data To Database

Feb 3, 2010

I am new in this forum, also new in VB.Net I need to create a public class for insert and delete data to database Public Class My_DBFunctions

[Code]...

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Writing Data From Array In One Class To A Listbox In Another Class

Jul 26, 2011

I'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?

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Generic Class Array - Reading In A Excel File And Extract Data To Store In A Array

Sep 9, 2010

I want to reading in a excel file and extract the sCodenumber sDescription ans the sStatus and store them in a array : StatusComposeArray(5200) As MyCompose. After this I need this array for comparing outside this class. But as can you see the array is defined inside the sub: ReadingIn_ExcelFilesCompose [Code]

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Convert C# Class's Byte Array Values Into Integer Array?

Jun 22, 2010

A c# class's single dimension byte array contains socket level instrument sensor data as per:

public static byte[] frameData

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Creating An Array Of A Class, And An Array In The Class?

Jan 20, 2009

It's been a LONG time since I messed with VB, and I'm messing around with VB 2008 now.I'm trying to make a custom class with three variables,

ID (String)
Title (String)
Comments (Array of String)

[code]......

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Difference Between Using The 'array' Class In VB And Just Declaring An Array Like Normal?

Mar 12, 2010

What is the difference between using the 'array' class in VB and just declaring an array like normal. In other words, what is the difference between:

Dim numOfTicketsPerDay As Array
Dim intNumOfTicketsPerDay(6)
As Integer

Is there any preference of when one should be used over another?

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Array In One Class Writing To A List In Another Class?

Jun 3, 2011

I'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:-

[Code]...

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Forms :: Initialization Of An Array Of A Class Within A Class?

Nov 3, 2011

I have main class of Races with mulitple properties. One of those properties has been defined as another class Runners.

So I have a race with multiple runners and when I try to update the data i get an instantiation error.

For the life of me I can't get it to work.

This is what I am trying to do...

In the clsRace class I have defined :
PublicProperty clsRunner(ByVal index AsLong) As clsRunner
Get

[Code].....

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Make Class Array Inside Class

Feb 28, 2012

I am New to <acronym title="Visual Basic">Vb</acronym>.Net. this is my first test. i try to create small address book. but i don't know what wrong. it compile perfect but when it run it give error and not work. is there any other way to add same class like in class inside array?

[Code]...

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VS 2008 - Getting Error When Importing Class To Form

Jul 16, 2010

When I import a class to a form and use it I get this error:
An error occurred creating the form. Additional information is found in Exception.InnerException. Error: The document refers to itself of the default instance created during the formation of infinite recursion. Set a reference to the form constructor using the form attribute of Me.

The code is...
Imports TCP.SystemBuild
Public Class MainForm
Dim SystemBuild As New SystemBuild

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VS 2008 Can Call A Class From Main Form

Dec 14, 2011

As of the moment I have 24 buttons that are keys to a piano.24 of the button codes have a call method that calls the note to be played.24 of the private subs that are called have an .wav audio playback command within them. I was hoping I could move the .wav private subs into a separate class, and just call them from my main form, therefore cleaning up the lines of code I have at the moment. [code]That example only counts for one Button "The Key of C", and the audio file that is called with it. Multiply that by 24 and you get a big mess of repetitive junk.Can I move the audio subs into a class and call them from my main form?

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2008 Debugging - Form That Creates An Instance Of A New Class

Dec 8, 2009

I have a form that creates an instance of a New Class. The code is simple so there is no issues with the programming.

I can step through the code on the Main Form without issues. Stepping Into moves from 1 line to the next.

I can't seem to debug the code within the class though. I set breakpoints but "stepping into" doesn't work. The code gets executed, but it doesn't step through each instruction.

I've tried changing many of the options within Tools > Debug with no luck.

I've tried deleting files from bindebug and obdebug.

Not being able to debug my programs.

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VS 2008 - Class Module Gets Data Entry From Form

Dec 16, 2010

I've been coding a Windows applicaton for the past seven months but there aren't a lot of "windows" in the application so I have a question on getting and returning data from forms. I display a form and the user makes a listbox selection then presses Ok. Normally I can proceed from there (in a class module) with values from the config file, but sometimes his selection will require me to ask for more information. So I want the class to display a form, pass control to it, then when the user hits OK on this form, return to the class. What is happening is the class continues with all its inline code and function calls and doesn't show the form until the end of its current function.

Dim flClientInputFile As New CFile
Dim flPreparedOutputFile As New CFile
Dim lRecordCount As Long
Dim sProcessing As String
Dim sTest As String
Dim frmAbc As New frmAbc
frmAbc.Show()
frmAbc.Activate()
x()

When I run and step through this code, I find I'm in x() before I even saw the form. x() needs the data the user has entered on frmAbc in order to continue.

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VS 2008 Pass Error Message From Class To Windows Form?

Aug 13, 2009

I'm trying to program in a true object oriented manner and its causing me to re-learn a few things. Specifically, I'm having some trouble with error handling. I have all of my data access being performed by an adapter class in a seperate project. I can catch duplicate records without any problems, but I want to be able to send a message back to the user. Here's what I have so far:

[Code]...

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Class Array As Another Class Property?

Jul 28, 2010

I have two classes, and for a property in one of the classes I'd like to be able to load it up with an array of the other class. However my attempt at accomplishing this results in a "Object reference not set to an instance of an object" error. I know it's a rookie mistake, but I'm stumpedssist?

My code is as follows:
Namespace Parking
Public Class garage

[code]......

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Include Array Of Class In A Class?

Aug 6, 2011

I want to include Arrary of Class in a class. For Example

Public Class AddressSet
Private addressValue As String
Private effectiveDateValue As Date

[code]....

my goal is let the user add address maximum 10 addresses under one name How do I implement "Property" to have array AddressSet using array index?.

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XML Serialization Of Array Of Class Within Class?

May 8, 2012

In short, I can't seem to get the xml serializer to serialize an array of one class type embedded within an array of another class.I have two classes, one of which contains an array of the other class, as follows (there are other objects in the classes that I've not included):

[Code]...

There must be a simple way to get the XML serializer to serialize the array of the class embedded within the array of the class that I am serializing. Am I missing something?

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VS 2008 MyBase.MouseDown Class To Check For Clicks Picture Boxes Not Form?

Dec 5, 2009

Private Sub LMouseDown(ByVal sender As Object, ByVal e As MouseEventArgs) Handles MyBase.MouseDown

If allowMouseCoordinate = False Then Exit Sub
Dim xPos As Integer
Dim yPos As Integer
If e.Button = MouseButtons.Left Then

[Code]...

But this only works if I press on form. But I have a tile based map covering the entire screen.How can I make it so, that It would check if I clicked on a picture box (or simply anything)?

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Visual Studio 2008 Creating A Check In Form For A Class Of Students With An Access Database?

Dec 4, 2009

Visual Basic Project - Student Check In Form using an Access database backend This form needs to draw information from an Access database containg tables for STUDENT, INSTRUCTOR, and SECTION. These all need to have primary keys and ids. When (the user) clicks on the drop down box that displays all the sections:

{Table Tennis 1, Table Tennis 2, Table Tennis 3, Billiards 1, Billiards 2, Billiards 3}This should populate the listbox or datagrid from the STUDENT table with the Students that have the same SECTIONID as the SECTION selected in the drop down menu above.

After the Student list has been populated (the user) clicks on a student name in the listbox/datagrid and this inserts that student into the CHECKEDIN table that has a datagrid/listbox associated with it.

This is a great project to practice connecting a database to Visual Studio 2008 .net and playing with the data that has been pulled in. You could use SQL instead of Access.

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Create A New Class That Inherits From The Base Form Class And Define A New() Method With Parameters?

Oct 1, 2008

I've been creating short test apps repeatedly to try to understand some of the concepts in VB.NET.For the most part it has been illuminating.I read Bucky's .NET knowlegebase tutorial on passing objects as parameters to newly created forms. He shows how to create a new class that inherits from the base form class and define a New() method with parameters Extending the concept I thought about doing the same thing with a form that was created at design-time (In this case Form2).

[Code]...

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VS 2010 - Et The ATM Class To Instantiate On The Form Class?

Nov 22, 2011

I'm trying to get the ATM Class to Instantiate on the Form class.

[code]...

ISSUE = " 'ThisATM' is used before it has been assigned a value. A Null reference exception could result at runtime"

The Other problem i am having is with a class in the program called CardReader. What am i supposed to type to let the code below be able to "read" the read function on the Form1?

[code]...

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Create A Custom Class That Has Inside An Array Of Another Custom Class?

Jan 31, 2011

I want to create a custom class that has inside an array of another custom class (see my code below) but when the programm runs is crashes. Why? What is the right expression???? Plz help I'm a newbie in VB.net.....

Public Class ctrarray
Public nameclass As String
Public ctrlindex(glvar_spaces) As ctrlindexclass
End Class

[code]....

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Class Used As An Array?

Oct 7, 2011

is it possible to make a class I made act like an array? Or is there a better way of doing this?

Example:

Namespace Animal
Class Dog
Public Name As String

[code]....

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VS 2008 Component Class - Drag And Drop Control Onto New Class

Nov 21, 2009

I am searching for the Component Class. When I go to "Add New Item" ,in my project their is no Component Class Item in VS 2008. I would like to Drag and Drop control onto my new class and I can't see how to do this ?

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