I have a class:
Form
Public Class Form1
Dim teamlist(2) As team
Private Sub Form1_Load(sender As System.Object, e As System.EventArgs) Handles MyBase.Load
teamlist(0) = New team(1, "one", "First")
[Code] .....
Error I'm getting is too many arguments.
Is there a way to call functions within a class upon instantiation of that same class? Basically, I have functions within a class, but I want to automatically call some of those functions simply when there is an instance of the class created.
Basically, I have this structure:
Dim instance as new class
instance.function1
instance.function2
[Code].....
I have several similar classes but only want to instantiate one of these classes dependant on a selection from my main form.
View 4 RepliesI am having some real issues with this one. I have a class which contains two other objects...but I cannot seem to instantiate those sub objects. Here is the code for my class:
Option Explicit On
Public Class Boot
'A collection of Heads and Shells
[Code]....
Notice the count for my two objects, Ohead, and oShell, is zero. Im not sure why this doesnt instantiate properly, as I believe is what is going on.
I can't find what's going on with the following nHibernate HQL.
here's my VB.Net code:
Return _Session.GetNamedQuery("PersonAnthroSummary").SetInt32(0, 2).UniqueResult()
My Named Query:
[code].....
I just like to know if how can i do single form instantiation upon loading my Form..upon loading my MainForm it automatically detect if that MainForm is still exist..ive try putting my code in the contructor of my MainForm..i check through the process in the task manager if that MainForm is still exist..but i think this is not the good idea bcoz..the MainForm takes several seconds to appear..and i think this is bcoz i loop through the process.
View 1 RepliesI can insert values into a VB.NET Dictionary when I create it? I can, but don't want to, do dict.Add(int, "string") for each item.
Basically, I want to do "How to insert values into C# Dictionary on instantiation?" with VB.NET.
var dictionary = new Dictionary<int, string>
{
{0, "string"},
{1, "string2"},
{2, "string3"}
};
In C#, you can do this:
new MyClass().MyMethod();
The method is executed and the reference is (typically) discarded since no reference to the object is kept.Is this possible with VB.NET (.NET v4)?
Edit: I suppose this is a better example:
new Thread((x) => doSomething()).Start();
What I want to do is pass a Type to another object's constructor, where the other object creates a new instance of Type. I can create a constructor with a parameter declared as System.Type without problem, but when I try to instantiate it tells me there is no such type.
Public Sub New(targettype As System.Type)
Dim Test As System.Windows.Forms.Form = New targettype
End Sub
I don't know if this has been asked before, but we're having a discussion about it today at my job. Should private variables (that are shared/static) be instantiated when they are dimensioned/defined, or is it a better practice to do this inside of a constructor?
Public Class IpCam
Private Const HOST As String = "http://test.com/url/example"
Private Shared _Example As New OurClass(HOST)which one to use?
[code].....
i have an application that have been working correctly, but sudenly shown an error as this: Error at create form, Exception.InnerException. When i execute debuger show error at the instantiation variables as xmldocument, control or decimal.
View 1 RepliesI have Form with the following code -
[Code]...
So I'm just trying to understand why someone would want to use the shorthand property instantiation
Public Property CarModel As String <-- property
As opposed to
Public CarModel As String <-- variable
VB 2008 .NET 3.5 Suppose we have two classes, Order and OrderItem, that represent some type of online ordering system. OrderItem represents a single line item in an Order. One Order can contain multiple OrderItems, in the form of a List(of OrderItem).
Public Class Order
Public Property MyOrderItems() as List(of OrderItem)
End Property
End Class
It makes sense that an OrderItem should not exist without an Order. In other words, an OrderItem class should not be able to be instantiated on its own, it should be dependent on an Order class to contain it and instantiate it. However, the OrderItem should be public in scope so that it's properties are accessible to other objects. So, the requirements for OrderItem are:
[Code]...
If Class X is within the scope of Class Y, is X a subclass of Y?If Class A is a sub Class of B, then is Class B considered a super class of A?if Class C inherits Class D is Class D a superclass or parent of Class C?if Class E extends Class F then we can consider Class E a child of F?if Class G inherits Class H and is within the scope of Class I then who is the parent of Class G? Classes that inherits Class J and classes that are within Class J are all sub classes of Class J?
View 1 RepliesI have put this code in the global form Inherits System.Windows.Forms.Form. And then in the form that will inherit this from the global Inherits MenuStrip. "MenuStrip" is what the global form is called. But keep getting this error: Error1Base class 'MenuStrip' specified for class 'Lesson2' cannot be different from the base class 'System.Windows.Forms.Form' of one of its other partial types.
View 5 RepliesI have a class (see below)
Imports Microsoft.VisualBasic
Imports System.Data.SqlClient
Public Class ClientProfile
#Region "Variables"
[CODE]...
It is in the file ClientProfile I have placed in both App_Code and also App_Code/Models
In my code behind I have the following
[CODE]...
The last word, "ClientProfile" has the scary squiggly red line below it. It is not recognizing my class.Even the Intellisense is not picking up te class. Do I have to register the class file in any way?
I am trying to build a web page that call an exe with some arguments. It's working perfectly when i launch it on the ASP.NET development server but it's not working well when I deploy it under IIS. He is the VB code source.The log text file is created in both cases but the exe is just launched from Visual Web developer 2008.[code]
View 5 RepliesI am listing the following three subrointines....
Private Sub OutPut(ByVal Offset As Long, ByRef path As String) 'Orig
If Not cbFiles.Checked Then
item1 = New ListViewItem(Offset)
[Code]....
They have the same name but a) different types of aguments or different numbers of arguments. This is legal in VB.
Visual Studio 2010
Windows 7 X64
I'm making a multipurpose tool. In with I need to run some DOS commands with arguments.So, Ex. of what I have now.
Private filepath As String = "C:UsersTTGToolToolG5.5.0pluginscom.zend.guard.core.resources.win32.x86_5.5.0
esources"
Private Sub Button1_Click(sender As System.Object, e As System.EventArgs) Handles Button1.Click[code]....
So it should be "like I like cats" or what ever it is in the textboxes in the command prompt.
Suppose I have two exes WindowsApplication1.exe WindowsApplication2.exe..On the form load of WindowsApplication2.exe,I m calling WindowsApplication1.exe & sending the command line arguements..I copy the WindowsApplication1.exe into the debug folder of WindowsApplication2.exe.
[Code]...
Suppose I have two exes WindowsApplication1.exe WindowsApplication2.exe..On the form load of WindowsApplication2.exe,I m calling WindowsApplication1.exe & sending the command line arguements..I copy the WindowsApplication1.exe into the debug folder of WindowsApplication2.exe.WindowsApplication2.exe
Code:
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Process.Start(Application.StartupPath & "" & "WindowsApplication1.exe", "one" & "two")
End Sub
WindowsApplication1.exe
[Code]...
On form load of WindowsApplication2.exe,WindowsApplication1.exe is started & arguments are sent.Now I want to check on form load of WindowsApplication2.exe,I do not want to start WindowsApplication1.exe, i just want to send the arguments to the WindowsApplication1.exe. Is is possible? To send the command line arguments to the ruunning exe.
I have a problem and stuck on it here is my code it produce the following error "Too many arguments to Public Sub New()"
Dim con As New OleDbConnection("Provider=MSDAORA.1;Data Source=(DESCRIPTION=" _
+ "(ADDRESS_LIST=(ADDRESS=(PROTOCOL=TCP)(HOST=196.111.116.205)(PORT=1521)))" _
+ "(CONNECT_DATA=(SERVER=DEDICATED)(SERVICE_NAME=Dummy)));" _
[code]....
it produces error on this line
Dim frm As frmworkodr = New frmworkodr(dt)
I am working on someone elses code, and this is in a Public Class I have the following code (same error msg both procedures):
Protected Sub New(ByVal info As SerializationInfo, ByVal context As StreamingContext)
MyBase.New(info, context) <<<------ Line With Error
End Sub
[code]....
and get the error message "Too many arguments to 'Public Sub New()'"This is the first time I have seen this type of code in a class?
[code]
Public Class Printing_CopyFrm
Private quer As String="select * form cust_details"
Public Sub New(ByVal query As String)
[CODE]...
I have a console application which reads .txt files. I want to be able to drag a txt file over my app and it would automatically open my app and show the text files contents. I think I have to use command line arguments like this:
Sub Main(ByVal cmdArgs() As String)
End Sub
Sub ReadFile(FilePath as String)
End Sub
But how can I pass the text files path to my ReadFile sub?
At the moment i'm creating a remote object instance by:
Dim serverURI = String.Format("{0}://localhost:{1}/{2}", IPC.Protocol, IPC.port, IPC.Channel_name)
Me.Server = CType(Activator.GetObject(GetType(RemotebaleServiceCommands), serverURI), RemotebaleServiceCommands)
I need to pass some constructor arguments to RemotebaleServiceCommands call.
I'm writing a class-library in VB.Net and one of the subs that are being called from the application which is using my library has more or less the following syntax:
Public Sub LoadDict(ByVal PhoneticType As String, ByVal strDict As String)
where PhoneticType can be phonSoundex, phonDoubleMetaphone or noPhonetic
I want to give the application-developer a possibility to select the PhoneticType from a list when writing the call of above sub (I think it's called attribute-arguments). This would make it easier for the developer since spelling-errors can be avoided and which will avoid errors when using the library. I think it's all about attributes but I haven't managed to get it to work despite trying.
I've created custom buttons in a .dll and they work fine, so I thought I'd have a go at creating my own sort of listbox to replace the standard one in my applications. It's basically a panel with a few labels and a button (eliminating the need to select an item in standard listbox then click a seperate button). I want to add these panels to a panel on a form, at run-time, based on rows in a db.
If I try adding any arguments in the New() section of the class file it won't let me use the panel in my toolbox. Is there a way to pass arguments to custom controls, I need a new custom panel for each row in a db so need to pass an id to it to specify records; or even load the records in my application and create a new panel for each record, using info passed to it to fill in the labels on it. Or can I create the panel at run-time and refer to labels within the custom controls, setting their .text properties that way?
I am new to visual basic 2008. I can't seem to grasp arguments in a function. Can anyone give me a simple explanation of what they are, how they work, and why we need them?
View 5 Replies
