How To Refrence A Instance Of A Class
May 10, 2009Lets Say you have a Class
Public Class ExampleClass
Private _Name As String = "Unnamed"
Private _Value As Object = Nothing
[code].....
ADVERTISEMENT
Unable To Use An Instance Of The Nested Class Through A Public Variable Of The Parent Class?
Jun 7, 2012I want to created a nested class that can only be visible to and instantiated from the parent class.But I also want to be able to use an instance of the nested class through a public variable of the parent class.I tried making the nested class private, or making the nested class' constructor private, but it won't compile.Is it possible to do this in .NET?
[Code]...
How To Assign A Different Reference To A Class Instance From Inside The Class Code
Jan 18, 2011my 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]...
Class With Class Properties: AObject Reference Not Set To An Instance?
Aug 19, 2009I 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
How can i fix this ?
Class With Class Properties: Object Reference Not Set To An Instance
Aug 19, 2009I 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
Declare A RANDOM Class Instance At CLASS Level?
May 6, 2010If you run this code you will see that the 500 PictureBoxes that are added ( this is easier to show than adding pixels as a pixel is only a single point ) fall mainly on the diagonal.With regard the RANDOM class, why should this be like this when the bounds of the instances are? >>
p.Location = New Point(x.Next(0, Me.Width + 1
), y.Next(0, Me.Height + 1 ))
as in this code.>>
[code].....-2138214fdeb4
Creating An Instance Of A Class From A Class Library?
May 18, 2010I've createda vb.net class library where I've defined a number of small classes... nothing complicated, just working with strings, sending emails, etc.In another project, I reference the class library and I'm seemingly able to create an instance ofone of tclasses - intellisense shows me all of the plic properties, methods, etc... all looks perfect. No compile errors at all, nothing b gumdropsand lollipops.When I run the app I'm working on that references the class library, it fails at the point where I'm creating an instance of the class and gives me a vague exception, "System.TypeLoadException".
View 2 RepliesDefine A Class Such That There Can Be Only A Single Instance Of That Class?
Jan 20, 2012Is there a way to define a class such that there can be only a single instance of that class?
View 5 RepliesGet A Reference To The Class That Creates An Instance Of Another Class?
May 20, 2010I need to create a new instance of a class that needs a member of the calling class. But i can't pass a reference to the calling class through the constructor.The solution i am looking for is something like this:
Public Class ChildClass
Public Sub New(args)
_MyMember = GetMemberFromCallingClass()
[code]....
I want this to work without having to manually pass any references or variables from the calling class to the new instance of ChildClass.
VS 2010 Class Create Another Instance Of The Class Itself?
Jun 11, 2012I want to create a class that will "search" for something. Basically I load up the "search item" when the class is created and inside the class is logic to do the "search". The result of this logic will be more "searches" that I want to start. How can I have the logic in the class create another instance of the class itself?
View 3 RepliesAdd Refrence While Running?
Dec 15, 2009I have many dll-files on my pc made by me. They have a Public ReadOnly name As String = "Name Name" returning who the owner of the dll is. I don't want to close the application just to change the dll to check.
I use Dim Library As New Library.Class1 txtName.Text = Library.name to get the name to the textbox txtName. How can I make it possible to write the path to a dll I want to check, so i don't need to change the code all the time?
Add Refrence That Enable To Program Using MD5
Oct 23, 2009how can i add the refrence that enable me to programe using MD5 so i can secure my data if any one has sample code or to show me how to use please let me know
View 7 RepliesAdding A Missing Refrence To SMO?
Mar 12, 2010I cant find the reference for Microsoft.SqlServer.Smo Where can I find this missing reference for VS2010 Pre release candidiate
View 10 Replies.net - A Null Refrence Exception While Working With Properties
Feb 15, 2011Code will run from frmFacility and will shift into UserControl:
Public Class frmFacility
Private primaryBaseDay As Date
Private isClassPrimaryView As Boolean = False
[Code].....
At the line If facilityForm.IsOnPrimaryView Then, I get a NullReferenceException. Do you know the reason?
Also, I cannot create a new instance of the facilityForm, since I need to work with its singleton, although when I add a new instance of frmFacility, the IsOnPrimaryMode is set to false while it should be set to true in the gotoday sub from frmFacility.
How To Add A Refrence ( Specialy ) From The Root Folder Of My Application
Apr 24, 2010Ex. The user of my applications extracts the app on his desktop or anywhere well i do not know how to add the refrence from the code? like :
AddRefnrece(Application.StartupPath & "data.dll") or what ?
Other Useful info :
I am using Visual Studio 2008/Visual Basic 2008
Get Class Name Of A Instance?
Aug 20, 2010Is there a way to get the instance's class name with VB.NET?
View 2 RepliesSet Up A High Scores System But A Null Refrence Exception?
Apr 13, 2009I am in a VB.NET class and I am currently modifing a game. I am trying to set up a High Scores system but a Null Refrence Exception error is making me angry.I am trying to reference a class called GameState which contains the Subroutines and variables to use the high scores. Below is the code for a form that is used to show the current high scores in two listboxes.
[Code]...
Add Instance Of Class That Contain Data
Jul 16, 2009I have been asked by a code snippet to add the instance of class that contains data i want to add to an XML file, the only trouble is i am not sure what an instance of class is. Is it something that looks like this: [Code]
View 2 RepliesCannot Create An Instance Of My Class
Feb 24, 2010I am working on an ASP.Net 3.5 solution that I did not originally build. I added a class file named Incident.vb to the App_Code folder like I always do.But in my code behind of a web page, I usually create an instance of a class like:
Dim oIncident as New Incident
But after I type "New", normally I would see my class file he intellisense but I do not. So it does not seem to be able to find Incident.vb. I have not seen this behavior before. Trust me, my class is correct. I have created many class files like this.[code]...
Cannot Seem To Get Sub From An Instance Of Class Once Instantiated?
Sep 11, 2009I think I just need a push in the right direction. I cannot seem to get my sub from an instance of my class, once instantiated, to run when I click on the button. My Code in the class is
When I click this:Private Sub btnBark_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnBark.Click
mydawg.bark()
End Sub
[Code]...
Class Function Without Instance?
Mar 24, 2012I have a Class, which I create an instance of in order to use, however I have a couple of functions (which don't really relate to the instance data) which I want to use when an instance hasn't been created.
Visual Basic .NET (2010)
Example of what I'm trying to do:
' Log a user into the system (this works)
Dim hedwig As New CustomSecurity
hedwig.Login("username", "password")
[Code].....
Destroy Instance Of .net Class?
Jun 6, 2011this used to be so easy in C++ and VB6 I am dynamically creating multiple instances of a fairly simple class, tracking them via the Collections class in vb.net. I loop through the collection if I need to get to a particular instance to set some property, for example. Everything is fine, and works ok until I try to destroy the instances that I created (largely because I am probably not doing it right). What I am doing setting the instance to "nothing". That is, here is the portion of the code:
[Code]...
How To Make New Instance Of Class
Feb 1, 2011I have a class "Character" that holds character stats and skills. I make a new instance of it "MyCharacter". The problem is I would like to use it like this.
MyCharacter.stat.charactername ="whatever"
Where stat is another class within Character or
MyCharacter.skill.lockpick=10, b
But I can't seem to do it.
List Contains A Particular Instance Of The Class?
Feb 17, 2012In a program that I'm putting together, I have a small class and in the program, I add instances of that class to a List(Of [that class]).Later in the program I test whether or not that list contains a particular instance of the class, but it fails to return true when I've proven that it's in there. I've since set up an iteration routine where it finds it, but it has me puzzled why the ".Contains" will not locate it.
My question is simple: When I have a List where I add an instance of a structure or class, does it not actually examine the contents of the structure or class inside it?
String As A Class Instance
Apr 16, 2010how to set string content as a class instance name?Example. I have an INI-class with many instances like .Path, .Width, etc. Now, i'm reading my ini-file string by string wich hase been written by template:
[code...]
I would like to automate reading an assignment at ONCE. Like cutting the first word in line and setup it as my INI-class instance name.I know how to cut first word, but have no idea, how to set this string as instance name.
.net - Creating A New Instance Of A Class Object Box()
Sep 29, 2011my aim is to create a new instance box at the push of a button, the box has strings name and Id to be filled concatenating the auto generated ID i.e. 0 to 210 plus a string "Box" added by the user. I had problems earlier creating a structure within the class box, frankly I am not sure if the code below will work, as i try to run it in VB I get an error indicating that I am using the variables strBoxPositions() and strBoxNumbers() without assigning a value to it. The thing is the strBoxPositions() should automatically be filled by arrPosition() which will be created at the same time the new object box is created and the strNumbers() will be created with empty strings to be filled at latter stage by the used as and when necessary.
how could I initialise those arrays to get the program to run and perhaps ill be able to see if the code works or not, or just correct this code with a better way of code with comments, also if possible some indication on how could I update the strNumbers array inputing the strings one at a time on a text box field.
Public class form1
Public Class Box
Public intBoxID As Integer
[Code].....
Accessing Instance Of A Class Through A Variable?
Nov 12, 2010i have
VariableA as Class1
Variable1 as string
Variable1 = "VariableA"
I want to be able to use Variable1 to get access to VariableA(?).
So i want to able to do something like
VariableA.Property1 = "test"
But like this:
Variable1.Property1 = "test"
Add A Class Instance Dynamically / Programmatically?
Jan 15, 2011Am a geriatric coming back to programming after a decade's rest. Keeping it very simple. An empty form. As the form loads, create a Black button (OK) and also create a class which itself creates a single Cyan button. Am using VB 2010 Express. When I run, it creates the Black Button but not the Cyan (i.e. the one that is generated by the class).
[Code]....
Asp.net - How To Create Instance Of Class In Different Methods
Aug 3, 2011Do I have to instantiate description every time for different method? Or should I use static? Here's how I'm doing this now: What is the best way of handling this kind of situations. it seems that I repeat this line:Dim description As BLLDescription = New BLLDescription() without any good reasn.
Protected Sub Button8_Click(sender As Object, e As System.EventArgs) Handles Button8.Click
Dim description As BLLDescription = New BLLDescription()
[Cdoe].....
Asp.net Passing An Instance Of A Class Between Pages
Nov 23, 2011On page one I would like to create an instance of a class as such:
[Code]...
Then on subsequent pages I would like to be able to use pOne and xOne. Since pOne and xOne are local to page one how can I use them in other pages?