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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Feb 17, 2012
I need to determine the ranking of the List items specified by one specific property of the items.
I have the following Class:
Public Class LevelA
Property items as New List(Of LevelB)
Public Class LevelB
Property factor as Double
ReadOnly Property rank as Integer
End Class
End Class
For example, let's say I have three items in the List. I have set the factor property for the first item as 5.50, the second item as 6.60 and the third item as 3.30.Now I should be able to get the rank property of each item (the highest value should be ranked as 1). Here the first item in the list should have the rank as 2, the second item as 1 and the third item as 3.
What kind of procedure is needed for the "ReadOnly Property rank as Integer" for returning such values? It should somehow be able to access the list in the parent class probably?
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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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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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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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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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Mar 2, 2010
Is there any way to create a ranking system in VB? I'm trying to create an organizer for my robotics team. I thought of using an array, but I don't know how to read multiple text files or change the array if one is better than the other.
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Aug 2, 2010
Let say I have a function inside a class which require 4 parameter (table name,field name,field value, return field) When I use this function my form, such as
myclass.Search("customers", <-- after pressing the "," a popup list will be displayed that contain all the fields in "customers" table.
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Mar 10, 2009
I have an enum like this:
Public Enum AssociateType
ALL
TIMED
COMMISSIONED
MANAGER
INVALID
End Enum
and I want to get a string based on the value of this enum:
Public Shared Function TypeToString(ByVal Type As AssociateType) As String
'Inputs: An AssociateType of the type of associate.
'Outputs: A string of the type of associate.
[Code]......
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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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Oct 27, 2010
I have a Direction Enum:
Public Enum Direction
Left
Right
Top
Bottom
End Enum
And Sometimes I need to get the inverse, so it seems nice to write:
SomeDirection.Inverse()
But I can't put a method on an enum! However, I can add an Extension Method (VS2008+) to it.
In VB, Extension Methods must be inside Modules. I really don't like modules that much, and I'm trying to write a (moderately) simple class that I can share in a single file to be plugged into other projects.
Modules can only reside in the file/namespace level so I have one in the bottom of the file now:
Public Class MyClass
'...'
End Class
[Code]....
It works, and "if it ain't broke, don't fix it", but I'd love to know if I'm doing it wrong and there's a better way with less boilerplate. Maybe in .NET 4?
Finally, I know I could write a structure that behaves like an enum, but that seems even more backwards.
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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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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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Jun 7, 2011
How to list Enum's members in code? I have following Enum:
Public Enum TestEnum As int32
First = 0
Second = 2
Third = 4
Fourth = 6
End Enum
And I try to list all members of TestEnum via following code but it failed:
Public Class Form1
Private Sub Button1_Click(sender As System.Object, e As System.EventArgs) Handles Button1.Click
[Code].....
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Jan 16, 2010
I have a Session value that stores an integer representing what permission a user has to perform tasks in my application. For some reason now however, the function to check the permissions is not working. On the line indicated by the comment, the CTYPE action always returns the integer value, and not the list of Enum values. Can anyone please see what's going wrong here.
[Code]...
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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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Oct 14, 2011
There are three files:index.aspx
serverInfo.cs
setup.aspx.vb
My enum is in:
//Class:serverInfo.cs
public enum ServerVersion
[Code]...
See which version is selected via dropdown list, compare this to the value in the enum store in var and add to my connection check.
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Nov 21, 2011
I don't know how to convert the following line from VB to C#:
Dim values As New List(Of T)(System.Enum.GetValues(GetType(T)))
My version doesn't work:
List<T> values = new List<T>(System.Enum.GetValues(typeof(T)));
The best overloaded method match for 'System.Collections.Generic.List.List(System.Collections.Generic.IEnumerable)'
has some invalid arguments
The constructor-parameter doesn't take it that way - what cast (or else) am I missing?
For clarification: It is wrapped up within the following generic method
public static void BindToEnum<T>()
{
List<T> values = new List<T>(System.Enum.GetValues(typeof(T)));
//...
}
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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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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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Aug 6, 2010
I have a Generic.List(Of ImportedVehicle) - ImportedVehicle being a simple class as below.There is an enum property which is marked as public.When I serialize to XML using an XMLSerializer, the enum's value is just set to it's default value (which is NotAllocated) and doesn't actually represent the value that is set in code.[code]
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Nov 23, 2011
I have the following:
a table of addresses and a bindingsource for the table
a enum list of address type: 0 = "Mailing", 1 = "Physical", 2 = "Shipping" etc...
I would like to bind the datasource of the combobox to the enum so it displays "Mailing", "Physical" etc. Then I would like to change the bindingsource position of the address table based on the user selection of the combobox.
Here is what I have so far:
cbxAddressName.DataSource = New BindingSource(ApplicationEnums.GetEnumList(GetType(ApplicationEnums.CompanyAddressType)), Nothing)
[Code].....
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Mar 25, 2011
I'm trying to declare an enumeration and one of the names I'd like to use for an item is not usable apparently. Where I am declaring 'STEP = 3', I get this error message in visual studio: "Statement cannot appear within an Enum body. End of statement expected." Is it possible to use STEP as an item name somehow? [Code]
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Mar 23, 2010
VB.NET is not letting me dance with both feet, or piss with both hands. I've got one foot and one arm tied behind my back at every turn. I want to use this statement in a function:
Return CType(Formatter.Deserialize(FS), DS)
Seems doable, right?
Function ReadFileStream(ByRef FS As FileStream, ByRef DS As Object)
Dim Formatter As New BinaryFormatter
FS.Position = 0
Return CType(Formatter.Deserialize(FS), DS)
End Function
Right? I mean, CType only accepts a class name as the second argument. I can't give it an instance of a class, or it croaks. Yet if I try to pass the class name as the argument to that function:
DataInfo = ReadFileStream(FileStream1, DataStruct)
VB.NET croaks on this, too, complaining that "'DataStruct' is a type and cannot be used as an expression.". It's used as an expression by CType just fine outside of the function. Does the VB.NET legislature provide a clause that allows for a 'Type' to be passed as an argument in a function? Writing all the supporting code ten million times to deserialize a file using CType ten million times in a large application will get very complicated and tricky very quickly. It should be handled by a routine so that any cases and adjustments that come up can be dealt with in one spot.
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Oct 8, 2011
I have added a module to the project. Inside the module I have the following
Public Function ListOFT() As List(Of String)
Return ListOFT
End Function
When I try to add something to ListOFT I get:
Quote:
Object reference not set to an instance of an object.
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Aug 15, 2011
If i have the following class:
Is there anyway to load classes derived of this class into a single list kind of like: list(of Test) so that i can itterate through all items and call the load sub in each?
I.E.:
CODE:
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Nov 5, 2009
I want to be able have the class autofire a function when it is first declared. In my example it would be to load from a file all the constant variables for use in the program.
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Jan 2, 2012
RE - FilesystemRights Enum
This Code:
Dim FSRS As Type = GetType(FileSystemRights)
For Each fsr As String In [Enum].GetNames(FSRS)
TextBox1.AppendText(fsr.ToString & vbCrLf)
Next
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Nov 5, 2009
Has anyone ever used Game Maker 7?
I was wondering, if anyone had any information on making DLL's for this software to extend its function list.
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Oct 10, 2009
I have a List(of Class) where the class has two properties. One is a string and the other is a List(of String). I want to view this in a DataGridView and show the list property in a combobox. This is the basic structure of the grid, can someone tell me how I assign the "Files" property to the combobox? [code]
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