Extend Class Definition Across Multiple Files?

Feb 10, 2010

In order to organize various methods of my MainForm class, I would like to categorize them into several files. Of course, the methods would still need to access form elements and additional variables I added in the MainForm class.

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Asp.net Mvc - 2 Multiple Model Definition From Linq To Sql Class

Aug 8, 2010

I call upon the VB ninjas out there. Here's my situation. I need to eventually be able to pass multiple models to a view. Currently I have a linq to sql class that, of course, has a bunch of generated model definitions. I need to make a model that implements multiple models. I somewhat understand how to do this in C#, but this project is testing my VB skillz. Here's some snippets from my linq to sql models. I need to combine these two into one model to pass to the view.

[Code]...

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Extend Activity Class And PreferenceActivity Class At Same Time?

Apr 8, 2011

I want to have my main class for creating activity for 2 different flags.

1) One with relative layout Textview and images for which I am extending my class as[code]...

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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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Extend A Textbox Class

Nov 12, 2009

I have a couple of bits of code I add to a textbox in my codebehind on form.If I wanted to extend this class or somehow create a shared instance of this code so I can pass in the parameters for text to display in textbox and use in any of my forms.. [code]

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Extend On Class Size

Oct 24, 2009

i've tried to extend on the default class size, but couldn't do so. example

[Code]...

why is it that there is no such thing as size when im sure that i could create a new size(x, y)

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Extend The Function Class?

Oct 31, 2009

is there any way to extend upon a procedure itself?like i want to be able to do the following

Code:
public sub test()
msgbox(special())

end sub and it should popup a string, let's say "cool", plus i shld be able to use special() in every single sub but if we call special() from a function it should be rejected. how can that be done?

also, we should also be able to do the following

Code:
public sub test()
msgbox(specialvariable)

end sub whereby specialvariable is accessible by every sub.

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Extend Session Time When There Are Multiple Forms?

Jun 28, 2010

How to extend the session time. There are many form in my application like parent and child forms. So how can I make pop up to appear when session times out and the pop up should appear on the form where the user is currently in, when popup comes I have to disable all forms like(they should be transparent (i.e) user should NOT be able to edit them).

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Asp.net - Somthing._Default Is Not Allowed Here Because It Does Not Extend Class 'System.Web.UI.Page'

Jul 23, 2010

This has got to be one of the most frustrating issues with asp.net. I first got the error parser error cannot load default and as I have done before checked if the naming was correct in th bin folder and made the changes accordingly. Now I get the following error:

somethiing._DEfault is not allowed here because it does not extend class 'System.Web.UI.Page'

where something is the name of the project in the properties. I have the following code in Default:

Namespace FormDiscovery
Partial Class _Default
Inherits System.Web.UI.Page
Shared settings As New System.Configuration.AppSettingsReader

[Code].....

Now I have deleted the project and other in the solution and created a new one and still this error and if I take the 'something' name away I get the cannot load default error.

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Using Multiple Class Files With One Form?

Mar 17, 2009

I'm trying to move some Subs from my form file (Form1.vb) to a seperate class file to keep my Form1 neat. To complete my application, I plan on creating several more classes that do different things, but that will also be used by Form1.My problem is that even when I add the Inherits command to the seperate class file (Inherits Form1), the Form1 part of the inherits command is underlined in blue along with the names of all the controls I'm using on that form.When I hover my cursor over Form1 in the inherits command, I get the following error:Class 'EmailSample' cannot inherit from itself.I've never been able to get working with seperate class files right, even when I do it as shown in tutorial videos, if it's not an error like this, it's "btnSubmit is not declared" or something like that..

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.net - Class Definition Properties Or Methods?

Aug 4, 2010

I have a class definition that I've seen other define properties that return collections of objects.

Public Property GetAllAdults() as Adults End Property I made the argument that this should be a method in the class, because it doesn't define an attribute of the class, and could not be extended with parameters. Is/Are there reasons why this should be defined as a property vs. a function?

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Create Array Of Class Definition?

Oct 9, 2006

How do I creat a simple array of class definitions?[code]...

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Generic Inherited Class Definition

Jan 11, 2010

I'm having trouble with the definition of an inherited generic class. I have two base classes that are defined like this:[code]

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.net - Write A .NETCF Partial Class To Extend System.Windows.Forms.UserControl?

May 28, 2010

I'm writing a .NET CF (VBNET 2008 3.5 SP1) application, which has one master form, and it dynamically loads specific UserControls based on menu click, in a sort of framework idea. There are certain methods and properties these controls all need to work within the app. Right now I am doing this as an Interface, but this is aggravating as all get up, because some of the methods are optional, and yet I MUST implement them by the nature of interfaces.

[Code]...

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.net - Separate Metadata From The Class Definition Across Assemblies?

May 24, 2011

I'm working a business layer (separate assembly) that will contain various business entities used in multiple client applications. One of the client applications is a WCF app that will need to serialize these entities. In order to properly serialize the entities, metadata for data contracts or for XML serialization must be added, but the serialization requirements may vary across applications.

Clearly I need the metadata separated from the class definition. So how do I add metadata to my entities for each separate application?

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C# - Extending Enumeration Definition In A Child Class In .NET?

Jan 4, 2010

I have a base class which needs to define an enumeration:

BaseClass
- SomeEnum

I then need to create two derived classes from the base class and extend the values in the enumeration:

ChildClass1 : BaseClass
- SomeEnum
- SomeEnumValue1

[code]....

In C# or VB.NET can someone provide the syntax to do this?

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Get Base Class Object Reference Outside It's Definition?

Feb 13, 2012

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 .[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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Using Reflection To Find A Properties Definition Class?

May 18, 2008

I am currently using reflection to retrieve all properties of a class. I return a collection of PropertyInfo objects and all is working fine.

My problem is, I want to check if a property has been defined in a base class implementation and is therefore inherited in the current class.

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VS 2005 Counter Class Definition Loops?

Sep 14, 2009

I have 3 classes that need themselves in order to do their work but if I declare them the old way it would end up being an endless loop.

As an ex C++ programmer, I know I could use include once but I don't know if there is any equivalency in vb.net Here is the picture.

I have 3 Classes : SQLConnector, ErrorHandler, LogHandler

- ErrorHandler needs SQLConnector to get some IDs from the Database.

- ErrorHandler needs the LogHandler class to prepare the Logs to be... logged.

- SQLConnector needs the ErrorHandler class in case there is errors happening.

- LogHandler needs SQLConnector to insert in the database.

- LogHandler needs ErrorHandler in case the insert is not successful (sends mail in that case)

As you can see, all three classes are needed. The reason why I can't use LogHandler and ErrorHandler as one class is that I will use that class to log transactions and changes according to some parameters. Log is in no way exclusive to ErrorHandler.how I can prevent to make an endless loop and use all three of them as I wish?

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VS 2008 Using ENUM Definition In Class Properties?

Jul 28, 2011

In a global module, I define a new type that can take 4 values:

enum tAction as integer
None
Update
Insert
Delete
end enum

A use this type in many places in my code to check the value stored in a variable (if MyAction = tAction.Delete then ...)

In a separate file, I define a class. One of the properties should return a value of this type:

public class XXX
private _Action as tAction
public property ClassAction() as tAction

[Code].....

This way I could check a class property in the same manner (if MyClass.ClassAction = tAction.Insert then ...)

However I get a syntax error in the property definition: 'ClassAction' cannot expose type 'Globals.tAction' outside the project through class 'XXX'

My entire program consists in a few modules, in a single project. How can I use my tAction definition in my classes?

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How To Manage Multiple DAT Files For Serialize Objects Of Same Class

Feb 13, 2010

How best to manage multiple dat files for serializable objects of the same class. If one of my data files goes past a particular size, I want to create a new file. I then loop through both files when I do processing. Is there any easier way to do this and what's the best size to do this at in terms of performance?

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Class Definition To Return Nested JSON Structure Without WCF?

Dec 10, 2011

I'm trying to return code like this (can be found here):

{"hotspots": [{
"id": "test_1",
"anchor": { "geolocation": { "lat": 52.3729, "lon": 4.93 } },

[code].....

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Definition - Class - Object - Inheritance - Polymorphism - Abstraction

Mar 8, 2010

Can you define this :

Class
Object
Inheritance
Polymorphism
Abstraction

And could you make it easy to understand I'm having a hard time to understand those terms.

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Error: 'Protected Overrides Sub Dispose(disposing As Boolean)' Has Multiple Definition

May 12, 2009

I am trying a example codes of animated graphics. I rewrote all the code and I found an error which doesn't happen on the example code(I run the example project)

error: 'Protected Overrides Sub Dispose(disposing As Boolean)' has multiple definitions with identical signatures.

when I double clicked the error, I got this in Form1.Designer.vb:

'Form overrides dispose to clean up the component list.
<System.Diagnostics.DebuggerNonUserCode()> _
Protected Overrides Sub Dispose(ByVal disposing As Boolean)

[Code]....

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Visual Studio - Manage Multiple Files That Are Part Of One Class - Classes, Modules?

Sep 23, 2009

My VB project is large enough that it requires several files. It was originally developed as a Console App and I created each file as a MODULE. All modules could use subroutines, data structures and constants from other MODULES and everything worked fine. I needed to add basic windowing to the app and this required that the app be converted from a Console App to a Windows Forms App. The main window is Form1 which is not a MODULE but a CLASS. The problem is that some MODULE based functions cannot access subroutines, data and constants that are defined within the CLASS Form1 unless they are incorporated into the CLASS file and this makes the CLASS file very large. If I add a new Class file to the project, it also cannot interoperate with Class Form1 in the same way that multi-MODULE code interoperates.

How does one spread CLASS code across several files and still allow it to interoperate as if it were in a single file? Alternatively, how does one create several CLASS files that operate the way multiple MODULE files operate.I am sure that there are all kinds of best practices that I am violating but the goal to to get some prototype software working and interfaced to some lab equipment.

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Asp.net - Implement Security Trimming With A Website With Multiple Folders And Multiple Web.config Files?

Jun 18, 2012

I have a website that has highly granulised access and hence requires many web.config files. The problem is I would like to trim the menu so that only certain users will have access to certain folders. I have enabled trimming and setup roles in the sitemap, however when I access the page the menu is not show, as I am authorized to view the default page which is not in a subfolder. When I type the url of a page in sub folder's I have access.

How should I handle this:

A site map for each web.config file - don't know how this will work Removing the sub web.config file to only use a single one

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Defining A Class For Multiple Child Class Instances?

Feb 10, 2011

I have created a class for a Sports Facility. A facility has a Name, Status, Notes, etc as members of the class. This works well, I can create a new instance of an exisitng Sports Facility from the database, create a new instance, etc. All working well.What I am stuck on is accessing a list of Sports Facilities. I know I can create a new list by doing

Dim List As New List(Of Facility)

For Each fRow As DataRow In ds.Tables("Facilities").Rows

List.Add(New Facility(fRow.Item("FacilityID"))

Next

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Combining Image Files - Take Multiple Picture Files And Compact Them Into One File

Dec 10, 2009

I know this is out there and probably illogical but I was wondering if it was possible to take multiple picture files and compact them into one file.... and then retrieve them from the program later? Way to combine any amount of image files into one file

Module Module1
Sub combine()
Dim img1 As New Bitmap("i1.jpg")

[CODE]...

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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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