Coming 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?
Do 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 RepliesI 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 RepliesHow do I add a main method in vb.net Windows App?
I tried to add Module.vb file and declared main method there and then when I also to change the startup object Properties-> Application, I dont see option of Main method?
I've taken up learning vb.net having come from a C# background.
I was trying to reprogram a simple C# winforms program I had, which took command line parameters to determine what it did. In C#, there is always a main method to accept these arguments.
From what I've read, vb.net implements a main method for you once you specify the starting form, unless you make one yourself. Which is fine, but the one I've implemented seems to get ignored, I've put break points in to see if the code even get looked at, but nothing. The main sub is in the class declaration of the startup form like so[code]...
I converted a Vb.Net Form (which was previously written in vb6) with sharpdevelop to c#, now i am getting error that no suitable main method can be found.
View 2 RepliesI was just practicing some coding and noticed that I was able to use class instead of Module in VB .NET. So I replaced my module to class and I got this error message:No accessible 'Main' method with an appropriate signature was found in 'practicevb'.practicevb
I made sure that the startup object was set correctly in Properties > Application > Startup Objects.The error message disappears if I change it back to Module but I would like to keep it class since the other parts of my code I changed to class and didn't return and error messages.
Class Atic
Sub Main()
Console.WriteLine("Hello, this proram will calcaulate the quadratic forumla ax^2 + bx + c")
Dim Quads As New Quads
[code]....
put method in main thread from background without declaring delegates
View 2 RepliesTrying to get it to behave like C#, where there is a Program class with a static Main method.However, in the project properties, I cannot set Program.vb to be the startup object, only the forms (it is a forms application).
View 2 RepliesDoes anybody know why I get the error 'that method is not available on that object' when I try to interface with Word 10? Our software works fine with Word 7 and previous
View 1 RepliesI am working on process for validating documents to make sure that they meet corporate standards. One of the steps is to make sure that the Word document does not use non-approved fonts.I have the following stub of code, which works:
Dim wordApplication As Word.ApplicationClass = New Word.ApplicationClass()
Dim wordDocument As Word.Document = Nothing
Dim fontList As New List(Of String)()
[code]....
I want method which can check if microsoft office word spell checker is present. If version less than 2007 are there I check if ""C:Program FilesCommon FilesMicrosoftSharedProofMSSPELL3.DLL" this dll is present, but for officewe don't find this dllat this location. I'm looking for a method which will check for spell checker of the various version of Offices.
View 5 RepliesIam using this method to seach in xml file but it returns search by first word for example i have a name [url] and i write in seach box word "forum" then it will not return any result but if i write "vb" then it will return the result how to solve this problem code is here
Private Sub Button5_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button5.Click
Dim b As Integer
If TextBox10.Text <> "" And ComboBox1.Text <> "SELECT" Then
Call sorting()
[CODE]..........................
We are opening a Word document from our Visual Basic 2010 application using the Word object. When we run our application under Windows Server 2008 the document name is truncated in the main window title for the document. This is not the case when we run our application under Windows XP. Is there a way to prevent this truncation under Windows Server 2008?Mary Leathem
View 3 Repliesgetting a DoCmd.RunMacro method for running macros inside EXCEL and Word?
View 1 RepliesI'm searching for specific string method that ignoring the word if it was written in capital or small letters when I want to type this word in a field for searching purposes or when a user wants to enter its usrename in capital or small letters.
View 5 RepliesI'm reading data from a serial port, but the DataReceived event of SerialPort is handled on it's own thread. I want to handle this on the main thread, but simply declaring an event and raising it still results in it being processed on the SerialPort thread. I'm assuming I need to declare a delegate I can call, but I don't see how that would work.
For example, I want to call Sub HandleDataReceived() on the main thread from the DataReceived thread, having HandleDataReceived() run on the main thread. How would I do this?
From 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.
View 3 RepliesWhat 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]....
I 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 RepliesI'm trying to run this code, but it displays the error "overload resolution failed".
[code...]
Here is the full error:[code...]
I 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 .
View 1 RepliesMy app works fine on the development machine and 3 other machines. However, some machines just show the main login box and then fail to show the main screen. There is no error message. I installed VS 2008 express on on of such machines and when i compile the project, the following errors appear:
Type 'Microsoft.Office.Interop.Access.Application' is not defined.
Type 'dao.DBEngine' is not defined.
[CODE]..........................
I 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.
I have this assignment that says: Create an application to let the user enter a sentence, then calculate how many words there are in that sentence. I know how to count the "Char" in a word (using .Length), but for this assignment, I really have no idea how to count the words in a sentence. What kind of method am I supposed to use for this particular assignment?
View 3 RepliesConsider a MyForm class that contains a shadowed implementation of Show(). It also contains a CreateForm() method, which accepts an instance of the form and calls the shadowed sub:
[Code]....
I'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]...
I ran into this assignment that asks me to "create an application that allows the user to enter a word or phrse, then the Label should display that word or phrase backwards in all lowercase. For example, I enter "I read" Then the label should display "daer I" I try to do this with "Substring, Replace, etc", butnone of them work. Is there any particular method to achieve this assignment?
View 6 Repliesi'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?