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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.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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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 2008 - Class Ranking List Box Has An Enum Function?

Dec 7, 2010

Application: Arrays are to be used for this. When button Add Student is clicked it should add all the information for a student and when Show Student button is clicked it should prompt the user for student's last name and student's information in a message box. Class ranking list box has an enum function to it and has to be stored be show along side other answers.NOTE: FindItemIndex if from the last application I did, i am suppose to use it in this one,so you can modify it the way you want.

[code]...

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VS 2008 Making Property In A Class Expose An ENUM?

Jul 12, 2009

I've got this in a public module

Module PublicModule
Public caseBAL_C As caseBAL
Public clientBAL_C As clientBal
Public Enum CSFlags

[Code]...

It doesn't like the Public Property StateFlag() As CSFlags -it's saying that CSFlags

'StateFlag' cannot expose type 'PublicModule.CSFlags' outside the project through class 'caseBAL'.

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VS 2008 Enum And Radio Boxes-passing Info To Business Class?

Jan 29, 2011

I'm trying to pass data from the main form to a business class form for calculation.I have 3 types of cars and I can't get the code right to pass that to the business form. It seems correct to me, but obviously, it's not.This is the code for the calculate button, I can't figure out why its telling me that CarSize is not a member of the business form when I have it in the Enum statement at the top. I'm going by what the book says and this appears right according to it.

Dim CarTypeInteger As Integer
'determine the car size from radio buttons
If LuxuryRadioButton.Checked Then

[code]....

In the book it says to specify the class name when declaring the enum on the business form. So to me it looks like it should be -RentalRate.CarSize.Luxury The error I have is 'CarSize' is not a member of the 'ChristiansCarRentals.RentalRate'.

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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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Create A Enum Or Enum Type Functionality Witch Return String (enum Returns Int) In .net

Dec 30, 2009

I have a URL lets say . some time i need to send HTTP and some time i need to send it to HTTPS for that i created a enum:

Private _protocol As Protocol

Enum Protocol
HTTP
HTTPS

[CODE]...

Now when i get value back from protocoltype it returns me integer value as enum do so tell me how to get string from enum or other substitute.

Dim targetUri As String = setting.protocolType & "://www.mysite.com"

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Enum Inside Structure - Adding Properties?

May 19, 2009

I have an enum that I want to give some methods. I thought about changing the enum to a structure so I could add properties, but then the enum is a value inside the structure (not the structure itself), so this would affect comparisons and such. (For example, instead of writing
EnumVariable=EnumConstant,
Now it is
StructureVariable.EnumValue=EnumConstant).
At least, this is my understanding of it. It seems awkward to have to do this for such a simple scenario, so is it possible give enums properties, yet still have them treated as before? I've thought maybe I need to create a new valuetype from scratch, but I've never done that before.

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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 - 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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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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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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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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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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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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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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VS 2008 Adding Properties To Class?

Aug 4, 2009

I created this custom listbox, and I want to change the border of the focus rectangle, so I made up this property:

vb.net
Private H_BorderColor As Pen = Pens.Black
Public Shadows Property HighlightedBorderColor() As Pen

[Code]....

But when I'm at the designer tab that property is editable, I attached a screen shot of the properties box.

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VS 2008 PropertyGrid Class Properties - Define The Color

Oct 21, 2009

1 - Need to create a kind of composite property, like the font property, that it's showed with a plus sign to expand. For example i need to define a new pen, i need to define the color and the width... 2 - I need to define the color for one brush, but if i create a property of the type brush in the PropertyGrid it appears like "System.Drawing.SolidBrush"

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Access Enum Members From Outside A Class?

Aug 1, 2011

I'm going to do my best to describe what I'm trying to do. I have a class that has an enum in it.[code]...

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Fill DropdownList From Enum Class?

Aug 19, 2009

Is there any way to fill dropdown list from Enumeration that is Enum class For e.g I have the Report Types as Enum Class

Public Enum ReportType
PDF=1
Crystal=2
Excel=3
End Enum

This Enum Class is there any way to bind in Dropdownlist

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VS 2008 Properties In 'groups' (class) In Designer (property Grid)?

Jul 29, 2009

I'm creating a UserControl that draws a simple radial gauge. I need it to be very customizable; the user should be able to customize everything such as the colors, fonts, sizes. So, I just made a property for every customizable detail. For example, I had ScaleFont, ScaleColor, ScaleStart, ScaleEnd, ScaleInnerRadius, ScaleOuterRadius, ScaleTickmarkFrequenty, etc.. etc.. etc...

Because there are so many properties about the same subject, I wanted to 'group' these properties into one "property". I've seen this done loads of times in third party controls, but I've never done it before myself.The idea is that the properties can be accessed like

Me.Gauge1.ScaleSettings.Start = 10
Me.Gauge1.ScaleSettings.End = 80
...

So far, I tried creating a class for each group, for example a clsScaleSettings class, containing properties like Font, Color, Start, End, InnerRadius, OuterRadius, TickmarkFrequenty, etc (corresponding to the same properties as above).

Then, for every 'group' or class, I create a Property. For example, I have the ScaleSettings property, which simply returns an instance of the clsScaleSettings class (I initialize the instance only once of course):

vb.net
Private _ScaleSettings As New clsScaleSettings
Public Property ScaleSettings() As clsScaleSettings

[code]....

Now, this works in the code editor. I can now use

Gauge1.ScaleSettings.Font = Me.Font

for example, and it sets the font correctly.But, I does not work in the designer, in the Property Grid. The whole reason I made the effort to move and rename nearly all properties (about 70!), and all references to those properties, to separate classes, was so that the user could design the gauge more easily using the Property Grid!Instead of having 15 settings related to the scale, scattered all over the Property Grid, he can now have one ScaleSettings property, which he can expand, and then he can edit the properties of that group easily.The ScaleSettings property is greyed out in the property grid... So I cannot expand it and view it's underlying properties.

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VS 2008 Set A User Control (or A Class With A Few Properties) To Appear In The Tan Bar At The Bottom Of The Designer?

Apr 5, 2010

How do I set a User control (or a class with a few properties) to appear in the tan bar at the bottom of the Designer? I have tried googleing it but, I don't know what that bar is called (Kinda Hard to Google without know what to Google)

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VS 2010 - Connecting ComboBox With Enum Kept In Another Class?

Jul 21, 2011

How to connect a combo box and an enum which is kept in another class? I have searched google a lot but the only solutions I can seem to find involve declaring an enum with the combo box. I however want to keep my enum elsewhere, not in the main gui element handling form. The closet thing I could guess was:
Combox99.DataSource = System.Enum.GetValues(GetType(MyBookList.OptionsList)
With MyBookList as a previously defined instance of the BookList class.

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VS 2008 Custom Class Called CustomItem That Holds Name And 'SomeProperty' Properties

Apr 22, 2009

Let's say I have a custom class called CustomItem that holds the Name and 'SomeProperty' properties:[code]Now, on the click of a Button, I want to select the CustomItem whose SomeProperty is equal to "Property 4". Of course, this is just "Item 4", but the names and properties are not that correlated in the real application than they are in this example.I have spent ages a long time ago figuring out how to do this. I could not directly set the SelectedItem, because I first need to get the CustomItem that actually matches my condition (SomeProperty = "Property 4"). My solution was to use a loop, looping through each item in the ListBox, and setting the SelectedItem when the right property has been found.[code]Now, is this the correct way to approach this problem? Is the LINQ query correct, or can it be done easier, without the casting? Also, is the LINQ query faster than the For loop, especially for a large amount of items? I expect it to be, but I don't know how to test this.

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Importing An Enum Into A Visual Basic Class So That It Becomes Inheritable

Nov 16, 2011

Here is what I have in my file

Option Strict On
Imports MyNameSpace.MyEnum
Public Class AwesomeClass

[Code].....

But since MyEnum isn't defined in the subclass it won't work. I am not very familiar with what these types of things are called, but I think that I am import a type definition of sorts. Since I am Importing, and not defining, it is only available in the first file. Basically, I want to include MyEnum as part of the class but I don't how to do it. I don't want to copy/paste it over, and I don't really want to write Imports ... at the top of all of my subclasses.

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VS 2010 Enum Class And Cyclic Correspondence Checking

Mar 13, 2011

I wanted to make a collection of definitions public, for which the Enum class was a perfect candidate, but I also had the need to check variables against all the possibile enum members to see which one they were.

In this scenario my solution was to write a public enum class in which all the members were made available, and replicate the same listing in an array in order to iterate through.

In fact the only way I know to iterate through all memebers is a cycle (either "for each" or "while somecondition" and a moving index). But I guess there must be a simpler way to make use of an enum class.

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