Is 'Overloads' Keyword Ever Required
Oct 27, 2010From what I can see online the Overloads keyword is optional but is there ever a time when it is necessary? It even seems to be an error when used in a Module.
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Difference Between Using The Overloads Keyword And Just Having Different Method Signatures?
Jul 23, 2009Do you really need this keyword to overload methods? What is the difference between using the overloads keyword vs. just having different method signatures?
View 5 RepliesAsp.net Mvc - Make A Required Class Properties Not Required
Apr 8, 2011I have a class set up to hold values on a registration form (VB.NET, MVC), and among the properties is a Password property:
[Code]...
Overloads Versus Overrides In .net?
Oct 24, 2011What are the behaviors difference for the Previous Property of Other1 and Other2 Class.Note than the return type of the ovrloaded Previous Property of Other2 as bean changed to Other2 while it stay as Base for Other1.
Public Class Base
Private _Previous as Base
Protected Overridable ReadOnly Property Previous As Base
[code]....
Overloads Vs Generic Arguments
Aug 24, 2009I have a question. In the framework, that was largely written before the generics came, you often see a function with lots of overloads to do something with different types. [code] and then have some kind of ifs/switch statements with typeof() to try to infer what the types are and what to do with them.What is best practise? Or what are the ideias that'd help me choose between a) and b)?
View 5 RepliesSql - Server Connection Overloads
Feb 26, 2012I'm trying to run this code, but it displays the error "overload resolution failed".
[code...]
Here is the full error:[code...]
.net - Main Method Have The Word 'Overloads' In VB?
Aug 13, 2011Coming from C#..I was looking at this website [URL]..And noticed that it said
public static void Main(string[] args) {is equivalent to Overloads Shared Sub Main(ByVal args() As String)
what is that "Overloads" all about?
Are Generic Operator Overloads Allowed In .NET 4
Dec 15, 2010I am assuming "No", but I cannot find conclusive proof on Google to back this assumption. Using keywords of 'vb.net "generic operator overload"' yields exactly 1 result, and removing 'overload' gives more, but no direct statement to the issue.
My thinking is given an abstract class, it'd be great to be able to implement a generic operator overload that a derived class can use in such a case when said operator overload has to return a New copy of the derived class, yet the code for each overload is the same. If that makes any sense.
This touches back to my previous questions on my custom Enum class and overloading the bitwise operators (And, Or, Not, & Xor), but, this particular thought was prompted by a mere curiosity of "Can it be done?".
Here's what one of my custom enums basically look like:
The parent, EBase is nothing special, just hosting common Name and Value properties, plus two shared operators, op_Equality and op_Inequality.
Friend NotInheritable Class EExample
Inherits EBase
Private Sub New()
[Code]....
Then (in theory anyways), calling EExample.OneA Or EExample.FiveE would work because the compiler would know to call the generic operator overload from EBase, know that EExample.Enums matches the IEnums interface constraint, and automatically supply T.
That or I'm just swimming up a certain creek here without a paddle and over-analyzing things. But it's an interesting thought, no? What is StackOverflow's consensus? Do I need to lay off the Spice a little bit?
PS: I use /* */ style comments because Markdown doesn't handle VB-style properly.
PPS: I know that, in the last example, Return New T( ... ) is invalid, but I can't think of a proper syntax that would articulate the basic idea.
Difference Between Overloads, Overridable And Overrides
Oct 28, 2009Difference between overloads, overridable and overrides .
View 1 RepliesOptional Parameters Versus Method Overloads?
Oct 6, 2009I was familiar with the optional parameters in vb 6 and it made sense given the capabilities of the language but why the heck does VB.Net support optional parameters when there is method overloading? Which one should I use and is there a difference? If there is a difference when should I use each one?
View 4 RepliesOverloading Functions - Overloads In The Abstract Class Implementation ?
Oct 7, 2011I have recently come across some code that has the following. First there is a Interface with the following function Function Validate() As Boolean. That interface is then implemented in the an 'ABSTRACT' class like this.
Public MustOverride Overloads Function Validate() As Boolean Implements IBusinessEntity.Validate
Question 1: Why use Overloads in the Abstract class implementation.
Question 2: The Abstract class is then inherited into a class (TestClass). In TestClass the Validate function is implemented as follows Public Overloads Overrides Function Validate() As Boolean. I understand the Overrides keyword is to insure that this is the version of the Validate that you want called and not the Abstract class version but why again use the keyword Overloads?
From what I understand you can overload a constructor of a class by simply changing the constructor signature. Also, you overload Methods and Properties of a class by using the Keyword Overloads. But why do it when your implementing an Interface method, or an Abstract Class method that's inherited.
Addline Function - Public Overloads Sub AddTextLeft(ByVal Text As String
Dec 13, 2010I've got question. I created this;
Public Overloads Sub AddTextLeft(ByVal Text As String, ByVal Fontsize As Decimal, ByVal Bold As Boolean)<br/>
'-- PBA / 22.08.2006<br/>
[CODE]...
VS 2008 : Error : Too Many Arguments To 'Public Overridable Overloads Function Queryname() As Integer'
Jun 2, 2009i'm accessing an access database and want to execute the following query
INSERT INTO sometable
(date, field1, field2)
SELECT ( ? AS Expr1, field1, field2)
FROM othertable
? is a date i generate in code and field1,field2 belong to othertable i put it in a tableadapter and execute it by me.tableadapter.queryname(calculated date) but i get the error : Too many arguments to 'Public Overridable Overloads Function queryname() As Integer' Also if i try to generate the date in the query builder in the form dateserial(year(now),month(now),1-1)the query builder does not accept it?
VS 2008 Too Many Arguments To 'Public Overridable Overloads Function Fill(dataTable As TetrisDataSet.tblTransactionDataTable) As Integer
May 14, 2009I'm following this tutorial: [URL]..except I'm connecting to my own data source - a MS Access database.This is the query I have setup with the dataset:
SELECT Terminal_ID, SUM(Transaction_Quantity) AS Total
FROM tblTransaction
WHERE TransactionType_ID=3 and Transaction_DateTime>[@fromdate]
GROUP BY Terminal_ID
The debug fails immediately because it needs the extra parameter so I change the code from:
Public Class Form1
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
'TODO: This line of code loads data into the 'tetrisDataSet.tblTransaction' table. You can move, or remove it, as needed.
Me.tblTransactionTableAdapter.Fill(Me.tetrisDataSet.tblTransaction)
[code].....
The error I get on build is:Too many arguments to 'Public Overridable Overloads Function Fill(dataTable As tetrisDataSet.tblTransactionDataTable) As Integer
...I gave it the extra parameter, so what gives? Something special I need to do as it's a datetime field?
Textbox Validation - 'REQUIRED" Property Or Control That Allow You To Make A Textbox A "required" Field?
Jul 18, 2011Does vb 2010 have a 'REQUIRED" property or control that allow you to make a textbox a "required" field? I googled and saw something about required property in controls in toolbox but somehow I could not find it anywhere in my vb 2010 toolbox. Would it be easier to write it? Does anyone have sample code?
View 6 RepliesWhy Do 'string()' Overloads For String.Split Not Work As Documented In MSDN
Jul 29, 2010After having some trouble in my own code using String.Split and the Split(String(), Int32, StringSplitOptions) overload, I decided to look to the MSDN.I copied the entire VB.NET code example from this link: url...I placed it in a new class, and received the following errors (same errors as my own code example):[code]Why can my code not recogognize the string() parameter overloads to String.Split? Remember, i took the code from the MSDN link above, copied and pasted and it still did not work.I am counting on using the string() instead of char() overloads shown here: url...
View 15 RepliesProvide Cast Methods For Cast Operator Overloads In C#?
Jun 3, 2009I read somewhere that older VB .net (pre VB .NET 2005?) couldn't use overloaded operators in a C# class. Is it true for overloaded cast operators?Either way do you guys think it's a disadvantage for a C# class library not to include them and arithmetic methods as actual methods for other languages, like:
ToDouble
ToFloat
FromDouble
Add
[code]....
Redeclaring Something In An Inherited Class Is The Recommended-preferred Way To Use "SHADOWS" Or "OVERLOADS"?
Aug 7, 2011PASTE ALL of this to your Form1 code window please and add one Button to Form1.
Now I am asking developers here who actually do software development for a living
especially those persons holding MCPD or similar Microsoft Certification please.
1) When redeclaring a method as in AnotherClass below which Inherits from ExampleClass,
is the recommnded way to use SHADOWS or OVERLOADS please? 2) What about when you do the same with a PROPERTY please?
Option Strict On
Option Explicit On
Option Infer Off
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
[Code]...
.net - Does C# Have A Handles Keyword
May 25, 2011Protected Sub Menu1_MenuItemClick(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.MenuEventArgs) Handles Menu1.MenuItemClick
End Sub
In VB.net, we have the Handles keyword, I'm wondering if C# has anything comparable. Or do you have to manually wire all the methods to each control's event (in ASP.NET especially)?
C# - .Net's With Keyword In Java?
Jun 6, 2011Possible Duplicate: WITH statement in Java? does anyone know if there is the With Keyword in Java?
View 4 RepliesC# - Namespace And Use Keyword
Jul 13, 2010why use of namespace and use keyword and declaration of namespace
View 1 RepliesC# To Vb: The **default** Keyword?
May 7, 2011Possible Duplicate:Default value for generics k so while translating some code from c# to vb, i came across the default keyword, and I'm simply replacing it to nothing.
View 2 RepliesExtended With-keyword In .NET?
Oct 29, 2010In my current project everyone names variables and methods after what they are and what they do. This is good for quickly understanding the code, but with a lot of long varible names comes some headaches, such as when copying a dataset to an entity/object. So, while you understand the code, the readability still takes a blow.
veryLongVariableName.Id = datasetVeryLongVariableName.Id
veryLongVariablename.Something = datasetVeryLongVariableName.Something
etc.
Using VB.NET's With keyword can help.
With veryLongVariableName
.Id = datasetVeryLongVariableName.Id
.Something = datasetVeryLongVariableName.Something
End With
Now, my question, is there any way of using With, or something similar, but for several variables at the same time? Something like:
With veryLongVariableName As a, datasetVeryLongVariableName as b
a.Id = b.Id
a.Something = b.Something
End With
I'm all for descriptive naming conventions, but they do tend to clutter things. Especially in VB!
How To Search A Keyword
Oct 26, 2009I m trying to create a software in vb.net for some genealogists to trace their ancestors History, the users will search for the document in 3 ways
1. reference number from a combo box.
2. By the title of the document.
3. by inserting a keyword from the documents abstract..
i have already loaded the picture. i hav put all in one note pad my reference no., on next line i put my abstract and on the third line i put my path where the document is located.in coding i put all in different array.... making the program read all one by one line wise.i want to make search thru the keyword... means wen user inserts a key word in the textbox the program read all my abstract and then in a drop down it should display the documents that match the keyword.
New Keyword But Still Gives Error
May 17, 2012Its work well in windows 7 but when i run project in windows xp its says i must use New keyword but when i use New its gives error at regkey.GetValueNames and RegistryKey = Registry.LocalMachine and regBaseKey.OpenSubKey("SOFTWAREMyApp", FalseImports Microsoft.Win32[code]...
View 4 RepliesReserved Keyword In .net?
Mar 13, 2012in C# you'd put a @ in front of a reserved keyword. Is there any equivalent in vb .net?
View 1 RepliesUse A Keyword As A Propertyname?
May 3, 2011I have to serialize/deserialize a class into a JSON string/and return. The JSON Strinig must contain the "error" string (like: {error:"something strange occoured", id:23, result:"xxxxx"}), which specifies the occoured error.
How can i implement a class like:
[code]...
If i do this, the word 'error' is invalid.
Use Call Keyword In VB / VBA?
Apr 4, 2010I use the Call keyword when calling subs in VB/VBA. I know it's optional, but is it better to use it or leave it off? I've always thought it was more explicit, but maybe it's just noise. Also, I read this on another forum: Using the Call keyword is faster because it knows that it is not going to return any values, so it doesn't need to set up any stackspace to make room for the return value.
View 4 RepliesVS 2010 Use Of NEW Keyword?
Dec 1, 2011First off let me say that I am essentially new to VB.NET, i.e; still learning. Also, I hope that this is the right place to post this question. In a Project I have a Class module defined as:
Public Class Def
Public Id As String
Public Meaning As String
[Code]...
.net - Global Keyword In VB 2005?
Jul 1, 2009I have to inherit some legacy code in company, which is written in Visual Basic.NET 7.0 (Visual Studio.NET 2002). I don't have much experiences in VB.NET, and this line of code gets me in trouble:
Public Class Global : Inherits System.Web.HttpApplication
Visual Studio gave this error: Error 31Keyword is not valid as an identifier.C:Documents and SettingsAdministratorDesktopPOManWebApplication1Global.asax.vb414C:...POMan