IDE :: Class Files. Same As Namespace Or The Same As The Class Object Inside?

May 22, 2009

If my namespace is Company.Application.EDI.Acknowledgement and if I stick with theprogramming practice of one class per file then should my class be saved asacknowledgement.vb? Are there any gotchas that will come up?

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Instantiate Object Inside Class Definition

Jun 22, 2010

I see a sample code that an object is instantiated within the class definition block. But when I test the folllowing, I got error "Process is terminated due to

[Code]...

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Inside The Service Class, Declare A Class Variable Named Started?

May 8, 2012

Create a class named Service. Inside the Service class, declare a class variable named Started. The datatype of this variable is Boolean.Public Class Service Dim started as Boolean End Class Create a class named Server. Inside the Server class, declare a dynamic array that can contain elements of the type Service.(Note: For convenience, both the array and the variable Started can be accessible from a client program that creates an instance of Server and Service respectively)

Create a constructor for the Service class. When the constructor is executed, it will set the value of the class variable Started to True. Create two new classes: WebServer and DatabaseEngine. Both of these classes inherit from the class Service. Inside the Service class, declare a Sub procedure (method) named Terminate. This method should display the following text Service stopping in a message box when executed.This method can be overridden in classes that inherit from Service class.

Inside both the WebServer and DatabaseEngine class, override the method Terminate inherited from their base class Service. Both methods should first call the base class Terminate method. The messages Web server stopping and Database engine stopping should also be displayed in a message box when the Terminate method for the WebServer and DatabaseEngine are called respectively. These messages should only be displayed if the Started variable inherited from their base class is not equal to False.

Inside the Server class, declare a method named Shutdown. This method does not return any value. When executed, it will call the Terminate method for each of the Service instances (if any) in the arrServices
array. You should call the Terminate method within a For Each loop that loops through the elements of the arrServices array.

In the Sub Main method, create an instance of the class Server. Set the size of the arrServices array in
your Server instance to contain 2 elements. Create first a WebServer instance and then a DatabaseEngine
instance into this array. Call the Shutdown method from your Server instance.

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Get A Value Inside Parent Class From Child Class (in Nested Classes)?

Jan 1, 2012

I have Class1 and class2 which is inside class1, VB.NET code:

Public Class class1
Public varisbleX As Integer = 1
Public Class class2

[code]....

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How To Assign A Different Reference To A Class Instance From Inside The Class Code

Jan 18, 2011

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]...

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VS 2008 Reference Parent Class From Inside Child Class?

Apr 11, 2009

I have a 'property management class' that contains several functions and properties. I have several other classes that use the 'management class' as a property to derive the value of several of its other properties.Is there a way for me to reference the outer class from the 'management class' functions without having to pass it as a parameter? I ask because several different classes can have this 'management class' as a property and am having a hard time typing the parameter.

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Access The Base Class Inside A Derived Class?

Oct 22, 2010

How do I access the base class inside a derived class?

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Handle An Event Raised In Class Inside Own Class?

Apr 14, 2009

I have a "partial" class in VB.NET. Half of it is auto generated by a code generation tool. That half implements INotifyPropertyChanged, so any properties in that part of the partial class raise the PropertyChanged event.In my "custom" part of the class, I declare another property that depends on one of the properties in the auto-generated side. Therefore, when that auto-generated property changes, I also want to raise a PropertyChanged event on my custom property that depends on it.

If I go into the generated part of the class and raise the event there, that will get overwritten if I ever re-generate that part, so I don't want to do that. I would rather add an event handler in my side of the partial class that checks if the generated property changed, and if so, raise another event for my custom property.

[Code]...

I'm assuming it's because normally you'd use the WithEvents keyword to tell the compiler that you're subscribing to events from that object. I don't have a clue how to do this inside of the class that's actually raising the event, or if that's even possible.

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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 2010 Arrayed Class Inside A Class?

Nov 27, 2011

Haven't coded in a while, and ran into a wall when setting up my program data structure

So I have something like this in a class file;

Public Class X
Public Stuff as Integer
Public Stuff1 as String

[Code].....

I want to structure my program this way, what's the best way to go about that?

I want to access multiple data types in the same array from within a class, as it should be a subset of my base class etc... and want to be able to change the size of the array

Or is this class array within class nesting a dead end?

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Utilizing A Centralized Class object That Needs To Call Another Class Object?

Jun 7, 2010

I am utilizing a centralized class object that needs to call another class object. The program itself will do something like the following

sFieldValue = CentralObject.ObjectHandler(1, TestFunction, "FunctionVar,FunctionVar2,FunctionVar3")

In the central object I have a function

Public
Function ObjectHandler(ByVal ObjectType
As
Integer,

[code]....

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Access To Object Passed ByRef In The Constructor Of A Class Through Another Part Of The Class?

Aug 18, 2009

I have some classes, BsfciFile and StudyFlashCard. Bsfci is the extension to which I save my set of flashcards in an INI format. I am currently working to transform my code from using Windows API calls to access the INI to using a IniFile class that I found on the internet. I would like the BsfciFile to have a Array of StudyFlashCard objects, but I would like the StudyFlashCard class to use the IniFile class object contained in the BsfciFile class. I can pass the IniFile from the BsfciFile class to the constructor for the StudyFlashCard class, but I want it to modify the same IniFile as the BsfciFile class has later on.

[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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Asp.net - Structure A Class Inside A Class?

Jun 3, 2011

Currently, if I have different classes containing functions etc, I would structure them all in the 1 VB file titled whatever the main Class is. For example:

[Code]...

However, the problem with this is the file can become 1000s of lines long making hard to find portions of code. Is there a way I can store SubClass in a file such as MainClass.SubClass.vb so that its easier to locate classes? Or is there a better, more standard, way of doing this?

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Class With Class Properties: Object Reference Not Set To An Instance

Aug 19, 2009

I have a class in which some of the fields are also classes.

I can put values in the "normal" properties, but in the others when o try to assign values it gives the: "Object reference not set to an instance of an object"

But the code compiles fine.

dados_Defenicao = New ServiceReference1.draftClaimEntryDefinition
dados_Defenicao.arCode = "123"
dados_Defenicao.claimMarket.warrantyType = "w" - Here it gives the error

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Get Base Class Object Reference Outside The Class's Definition?

Dec 10, 2010

If we are within the derived class then ofcource we can use MyBase keyword to access base class's object reference . That's fine , how can we take that base class's object reference outside that derived class's definition.My following code will explain what i want . Actually that is giving error right now, but it is explaining my requirement .

Public Class Base
Public x As String
End Class

[code]....

Actually there is error in ReadOnly Property BaseReference's Getter . Error is "Error 1 'MyBase' must be followed by '.' and an identifier. " how can i get base class object reference in Main method ?

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Reference A Parent Class Object From A Child Class?

Jan 2, 2010

I have a Parent Class Called Fuselage that containsfour child classes called Forebody, CenterBody, AftBody, and CrossSection. CrossSection classcontains objects common to Forebody, CenterBody, and Aftbody (example: width). How do I access thewidth property in CrossSection from within the classForebody?

Public Class Fuselage
Dim Forebody As ClsSection
Dim Centerbody As ClsSection

[code].....

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Which One Is Namespace And Which One Is Class

Nov 5, 2011

Imports System.Windows.Forms.Form which one is namespace and which one is class?

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.net Namespace And Class Syntax?

Apr 7, 2011

I've added a new class1.vb file to my vb.net project containing:

Namespace MyFunc1
Public Class MyFunc2
Public Function Add(ByVal n1 As Int16, ByVal n2 As Int16) As Int16
return n1 + n2 ' Edited from: "Add = n1 + n2" (same thing)

[code]....

In form1.vb I thought I used to be able to call my functions with:

n = MyFunc1.Add(15, 16)

The error says "it's not a member".These also don't work as expected:

n = MyFunc2.Add(15, 16)
n = MyFunc1.MyFunc2.Add(15, 16)
n = Add(15, 16)

I thought for sure, this used to work:

n = MyFunc1.Add(15, 16)

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Calling A SUB From A Class From A Namespace .Net?

Nov 23, 2010

I have a code but cant get it to work. I have a .vb site with a namespace and a Class and a Sub.Then on my index.aspx site i cant to call this sub The 2 sites is in the root of my project, and the name of the project is CalendarWeek

My WeekController.vb is
Imports System
Imports System.Web.UI.WebControls.Calendar
Imports System.Globalization

[Code]...

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Extending A Class By Namespace?

Mar 17, 2011

I have a class within a library, with no root namespace, firstone.dll:

namespace first
public partial class one
public sub fun()

[Code]....

Is there a way to extend the class in a separate dll and still have access to the original class? I don't want to inherit the class just extend it.

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How To Alias A Namespace / Class

Nov 13, 2011

I'm writing custom code in VS2005 Reports (SSRS / Report Builder). The code is working fine, but I have to make absolute references to assembly classes. For instance:For Each m As System.Text.RegularExpressions.Match In ...Is there any way to alias the reference to System.Text.RegularExpressions.Match, so that I can reuse it in a concise manner? I know in PHP, you'd do it like this:

use MyNamespace\MySubNamespace\MyClassVerboseName as MyClass
[...]
MyClass->MyMethod();

[code]......

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Move A Class, Etc To A Different Namespace?

Jun 5, 2009

I'm moving some stuff around in a program. How do I move a class (or enum, etc) to a different namespace? Right now I am getting 102 errors because even though VS can update name changes, I don't see how to get it to update a move to a difference namespace.

EDIT: Okay, to be more precise, I am moving a class up the namespace tree. So, not just a different namespace, but actually getting rid of the last namespace qualifier.

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Namespace Of Sequence Class?

Feb 28, 2009

While going thru an msdn article, I found a reference to System.Query.Sequence class. But when I try to use it, I get error "Query is not a member of System"

vb.net
Public Sub Linq65()
Dim numbers = From n In System.Query.Sequence.Range(100, 50) _
Select New With {.Number = n, .OddEven = If(n Mod 2 = 1, "odd", "even")}
For Each n In numbers

[Code]...

The above code is vb.net version of this code from msdn. So what is the correct namespace of this class? Or I'm missing something else?

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Using The Namespace In A Class Library?

Aug 15, 2010

I am attempting to use the My.Computer.FileSystem namespace in a WPF VB.NET usercontrol library. I get no Intellisense etc for this namespace. I imagine I need to add a reference but no amount of googling has fixed this and VS.

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VS 2008 Namespace Within Class?

Apr 21, 2009

I've currently got a class that has a bunch of functions within it that I'd like to group up. I can't seem to find a way to do this, as the functions interact with the objects within the class (so I can't use a structure for example). Namespaces are only allowed outside of Classes as are modules. Let's say I have Class Foo. Inside Class Foo there are six functions, three that are logically grouped together and another three that are as well.

Class Foo
Public Function moneyFoo1()
Public Function moneyFoo2()
Public Function moneyFoo3()

[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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"upgrade" An Object To An Inherited Class, And Keep All The Base Class's Property Values?

Jul 5, 2010

bare with me during this silly example. :-) Let's say I have a class like this:

Public Class Animal
Public iLegs as int32 ' Number of legs
Public bWings as Boolean ' Wings? Yes/No
End Class

And another class that inherits the "Animal" class and adds one more property:

Public Class ScaryAnimal
Inherits Animal
Public iScariness as int32 ' 0-100, how scary is it?
End Class

Now, if I have an instance of "Animal" with some values in it, and I decide I want to cast it to a ScaryAnimal for some reason, how do I do that without having to create a new instance of "ScaryAnimal" and copy each property value?Basically I'm looking for a way to do this, without having to write the lines marked with '*** below:

[Code]...

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.net - Instantiate Class Directly In Namespace?

Oct 13, 2011

this is what i want to do. I have a class library project into my solution. Into it i have a class. I want that class to be instantiated as soon as the solution starts. So it can be accesible from the other projects in the solution like this: Namespace.InstanceOfTheForm.Property Is there any way to do that? or something close to that?

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C# - Access A Namespace With The Same Name As A Class Instance?

Aug 2, 2011

I have a question regarding namespace names and classes: If I have a class called cVeloConnect in namespace VeloConnect.

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