Instantiate Class And Call Method On Same Line?

Jul 7, 2011

I'm sure I've seen this done in 4.0 but can't remember how it is done.

Basically I want to instantiate a class and call a method of that class on the same line of code.

So something like this

Dim s as String = new myClass().getTestString()

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Get The Name Of Parent Method/class/file Name Inside Other Method Call?

Feb 16, 2010

I will try to explain what I need.Let's say that I have a class like this:

Public Class Example1 Public Sub ToBeCalled()

[Code]...

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Call Method Base Class In Program Passing Sub Class Objects?

Apr 22, 2012

Base class has one field to hold numeric balance value. With 2 methods that accept arguments for adding and subtracting the new input calculating new balance. Sub class has four fields dates, transaction, memo and amount.I have a deposit form, and withdraw form. Each time one transaction is entered it creates an object with sub class fields, then adds to the account collection. My problem is not understanding how to call the deposit/withdraw method and pass the current transaction amount back to the base class to alculate the new balance. Does anyone have any links to information/tutorials on how to perform something like this? As you can see with my code I have tried various different approaches without any success.

[Code]...

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.net - Create A .net Object And Call One Method All On One Line?

Aug 18, 2011

(New clsViewIllus).View(MyIBaseView, enumViewSolveTypes.View, Me, , True)

... in VB? Basically too lazy to do this:

Dim vi As New clsViewIllus
vi.View(MyIBaseView, enumViewSolveTypes.View, Me, , True)

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Call A C# Class's Static Method ?

Oct 28, 2010

I have a C# dll and want to use it in VB.NET. I'm using C# 2008 Express and VB 2008 Express. I have added a reference in a VB project to the C# dll. When I create an instane of a class in the C# dll, it gives the following error messsage: "Type 'RF.RabinFingerprint' has no constructors". My C# dll code:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;[code].......

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Call A Method From The Base Class?

Jan 3, 2011

REF: http:[url].....The above reference is where I got the code below.This code adds buttons to Form1. When a button is clicked a messagebox appears stating what button was clicked. I want to have the ClickHandler fill a RichTextBox on Form1 (I added a RTB to Form1). My problem is I can't do a Dim xForm As New Form1 to fill the RTB from the ButtonArray Class. I can place my file's text in a MessageBox so I know the code I added is correct. I also tried placing a Property method on Form1 and using a Accessor to fill the RTB, however it also requires Dim xForm As New Form1. How can I get my data from files to the RichTextBox on Form1 from the ClickHandler in the ButtonArray Class? See ButtonArray Class Below.

Imports System.IO

Imports System.Text

Imports System.Collections.CollectionBase[code].....

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Call A Shared Method In A Loaded Dll Using Class Name?

May 8, 2012

[code]...

Dim ass as Assembly = Assembly.LoadFile("sample.dll")

Now, I want to call the shared method using the class name.

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How To Make Right Reference And Call Class Method

Aug 5, 2011

I have a class file framebuild with a class command and class commandlist(of command). I fill the comandlist with a method in the class commandlist, to do that I make in the class commandlist a new instance of commandlist. But now in form4 I want to make a listbox which represents the commandlist. Then I also should make a new instance of a new instance? It is no problem to fill the list in the class instance but I want to fill it in the form.vb

Public Class rts485command
Property name As String = ""
Property hexname As Byte = &H0
Property framelength As Byte = &H0
End Class
[Code] .....

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Use Class To Store The Parameters BEFORE Call A Method

Jan 5, 2012

A friend in work suggested the use on classe to store the parameters BEFORE call a method. He's said this is called "Abstract Class". My "know how" of VB.NET is small... so, I want to know of you what mode is the best way: Call a function/sub like that:

[Code]...

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Class - Call A Method In The Default Instance Form Instead Of Instantiating Another?

Nov 15, 2009

When an instantiated class calls a method in the parent form class, VB.NET starts a new instance of the form class instead of calling the method on to the active one.How do I tell it that I have just one instance of my form class, or that I don't want to create a new instance of the form and just call the method on the already active form?

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Possible In .Net To Catch All Unhandled Exceptions From Any Method In A Class Before Its Passed Up The Call Stack?

Oct 19, 2011

I would like to catch any exceptions from any method in a class so that I may record class specific data to the exception for logging before it is passed up the stack. I know that I can put a try-catch in every method of the class, but there are many methods and It seems there should be a more efficient way. Example of what I am currently doing:

public class ClassA
{
private int x;

[code].....

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Ensuring Only 1 Type Of Class Can Instantiate Another Class

Jul 22, 2010

I have an Account Class that is able to create notes(Class), however i am able to create the note object by itself which is not the desired outcome, i want only the account class to be able to create the note object. Another Example would be, an order item should not be created without an order class. But how do you enforce this in vb.net.

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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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How To Instantiate A Class In A Web Site

Sep 28, 2009

I have created a WebSite with a folder called Classes. In the folder, there is a class with a Public Shared Function. How do I go about instantiating that class so I can use that function on a web form?

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Instantiate A New Object From My Class?

Jun 11, 2009

I'm trying to decide whether to get a value, call it X, in my class through a read only property or through a function. Normally I'd code it as a property except in this case the GET involves doing a lookup to a sql table. So there's way more overhead than a simple RETURN X. So my question is, when I instantiate a new object from my class, are all the properties calculated at that point, so that the sql lookup will occur too? Or is the property only evaluated when I actually reference it in the calling 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?

[Code]...

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Programmatically Choose Class To Be Instantiate

Jul 7, 2010

I am currently playing around with VB.Net using Visual Studio 2010 (.Net 4.0) and I need your help to create a collection class (let's call it 'cl_MyCollection') with a constructor that accepts two arguments:An SqlDataReader object Some means of pointing to a custom class I have created.I have five database tables in SQL 2000 and five VB.Net custom classes.Each custom class contains a variable for each field of the table the class represents.For example:"tbl_User" has 2 fields "User_ID" and "User_Name" and tbl_Family" has 3 fields "Family_ID", "Family_Name" and "Family_ Location". [code] Fixed typo, the select case now points to the second argument ('selectedClass') as originally intended.

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Instantiate A Generic Class Using Concrete Object?

Sep 27, 2011

i've got a generic class for xml serialization and deserialization.

Public Class clsXMLHandler(Of T)
Public Sub serializeFromObject(ByVal filePath As String, ByVal [object] As T)
Dim creater As New FileStream(filePath, FileMode.Create)
Dim xml As New XmlSerializer([object].GetType)
xml.Serialize(creater, [object])

[Code]...

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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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Strongly-typed Generic Method Invokes Its Argument's Base Class Method Instead Of A Shadowed Method In T?

Oct 19, 2010

Consider a MyForm class that contains a shadowed implementation of Show(). It also contains a CreateForm() method, which accepts an instance of the form and calls the shadowed sub:

[Code]....

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.net - System.String Is A Class Type But Why Can Use It Without Instantiate It With New Keyword?

Sep 3, 2011

System.String is a class type, but why we can use it without instantiate it with New keyword?

For example:

Dim CommandLineParameters As String = Microsoft.VisualBasic.Interaction.Command

No new keyword being used at all?

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.net - WPF BackgroundWorker - UI Locks Up Trying To Instantiate Object From External Class?

Apr 13, 2011

I am trying to run a backgroundworker to load data from my DAL (which is available in another class). I want to keep the UI available and not have the "locked up" feel while the object is loading.When I create a simple backgroundworker and Sleep the UI stays responsive and my controls can be updated after the sleep. As soon as I replace the sleep with a call to instantiate the object from my DAL, the UI locks up. Is there someway I can instantiate this object using the background worked and keep the UI responsive?

When the situation object is instantiated it could take several seconds for it to load completely, during this time is when the UI is locked up... It does eventually load just fine.

Private WithEvents backWork As New BackgroundWorker()
Dim sit As Situation
Private Sub btnLoad_Click(ByVal sender As System.Object, ByVal e As System.Windows.RoutedEventArgs) Handles btnLoad.Click

[code]....

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Way To Instantiate NTAccount Class From An Active Directory Entry?

Aug 23, 2007

I am creating user accounts in Active Directory via vb.net.Once the account is created I need to assign permissions to the "homedirectory" that I have assigned in Active Directory.I have access to the Active Directory name attributes but I need to convert these to a NT account format ( DOMAINAccountName ) to add security via the DirectorySecurity AddAccessRule method.Is there a way to instantiate the NTAccount class from an Active Directory Entry? I'm not sure if this is necessary I just found that class and it looked like a good fit; a simple routine to create the DOMAINAccountName from the Directory Entry attributes like cn might also suffice.

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Does Calling The Dispose Method On A Windows.Forms.Timer Call It's Stop Method

Nov 12, 2009

Does calling the Dispose method on a Windows.Forms.Timer call it's Stop method? Or should I stop the timer before I dispose it?

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VS 2010 Call The Same Method In A Method While Threading?

Jan 29, 2012

I have a Application that Crypts all Files in a Directory and the Subdirectories

Public Shared Sub CryptAllFiles(ByVal crypt As Object)
'check if this dir exists
Dim vDirInfo As New DirectoryInfo(vPath)
If Not vDirInfo.Exists Then Exit Sub
'get all files' sizes in current path

[Code]...

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Instantiate Object From Class Using String Variable For Name Of New Object?

Aug 11, 2009

dim myCollection as new Specialized.StringCollection
dim myFoundThings as new ArrayList
dim index as Integer
dim newResultMemberName as String

[code]....

This is part of some code that will run without user interaction once it's spinning away, and I need to create a unique object from some items found in a StringCollection, naming the objects using information found in the strings stored in that StringCollection.

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Call A Method That Compute Some Data That Method Is On Another Form In Windows Form Application?

Mar 17, 2012

i want to which way is better when concentration is on processing speed. i want to call a method that compute some data that method is on another form in my windows form application then what you prefer is better way 1) to call that method in another form and use returned value or create similar method in form where it is required.i want to make it's processing fast.

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Add / Implement An Interface To An Existing Class Without Changing Code Anywhere That Call The Class And Functions

Mar 1, 2010

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]...

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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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.net - Suppress A Property Or Method From A Base-class In A Derived Class?

Apr 7, 2011

Supose a base class

Public Class airplane
Private var_num_seats As Integer
Private var_num_engines As Integer

[code]....

Obviously, I don't wish that the class Glider has the method "start_engines" neither the property "num_engines". Otherwise, other child classes may have. How can I supress these property and method in child class, not just ignoring (if I can)?

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