Inherit A Sub New (Constructor) With Parameters?

Apr 25, 2009

In the code below I recieve the compile error "Error Too many arguments to 'Public Sub New()'" on the "Dim TestChild As ChildClass = New ChildClass("c")". I do not recieve it on "TestChild.Method1()" even though they are both on the base class I am inheriting from.

Public Class BaseClass
Public ReadOnly Text As String
Public Sub New(ByVal SetText As String)[code].....

As suggested below but I do not have to do that for Method 1 or other inherited methods and I am looking for the cleanest code possible. This may be a limitation in the system with inheriting parameterized New statements but I can not find it documented anywhere. If it is required then I would like to see the documentation.

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Construction - Inherit A Class That Also Has A Constructor

Mar 15, 2010

i'm working with different classes and different constructors. It's working fine until i try to inherit a class that also has a constructor. vb asks for mybase.new but when i add that vb says that a constructor cannot call itself, when i try it in a different way vb asks the parameters of the constructor of the class that i want to inherit.

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.net - Subclass Inherit A Constructor - Error 1 Too Many Arguments To 'Public Sub New()"

Jun 25, 2009

I have a base class, "B", which has two constructors, one with no paremeters and the other that accepts one param, an integer. I have a subclass, "S", which inherits from "B" and does not define any constructors in it. I create an instance of S, attempting to pass to the constructor an integer.

I get the error: Error 1 Too many arguments to 'Public Sub New()"

This surprises me because I thought that if a constructor is not defined in the subclass, S, that the base class constructor method, specifically, the one with the single integer param would be invoked w/o an error. why I am getting this error? Are constructors a special case?

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.NET Constructor With Parameters And Inheritance?

Jun 29, 2010

Why VB.NET (vs C#) does not "inherit" the constructors with parameters?

Public Class StopLine
Inherits Microsoft.VisualBasic.PowerPacks.LineShape
Public Sub New()
MyBase.New()

[code]....

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Constructor With Parameters And Inheritance?

Jun 23, 2011

I searched quickly and not find an explicit answer at the following question:Why VB.NET (vs C#) does not "inherit" the constructors with parameters?

Public Class StopLine
Inherits Microsoft.VisualBasic.PowerPacks.LineShape
Public Sub New()

[code].....

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How To Call The Constructor With Parameters

Jun 1, 2010

I am stuck with a problem about generic classes. I am confused how I call the constructor with parameters. [Code] I get error in the starred area of the DBLayer Object. What might be the possible reason? what can I do to fix it? I even want to add New(byval someval as datatype) in IDBObject interface for overloading construction. but it also gives an error? how can i do it? [Code]

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.Net OOP Superclass Base.net And Constructor Parameters?

Mar 13, 2009

I have a base class that contains a fairly large number of parameters in it's New constructor. I have 7 subclasses that inherit the Super base class. My question/issue is, all of the subclasses use the same values for most of the parameters in the New constructor of the base class and these subclasses can be called one after the other. I would like to populate the common values for the superclass and then use those for each of the subclasses, but I can't come up with a good way to do this. If I could figure out how to do this, I wouldn't have to pass all of those parameters in the MyBase.New call for each subclass. I'll try to illustrate with some code .

[Code]...

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Write Constructor With Different Parameters In VB 2008

Oct 13, 2010

In java the constructor is as follows

[Code]...

can i make 4 constructors with diffrent parameters. now in vb how can i write constructor with parameters.

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Pass A Delegate Into A Constructor Of An Abstract Class From A Descendant's Constructor?

Feb 15, 2010

I have an abstract class which requires a delegate to function. I pass the delegate into the constructor. Now that I have a non default constructor I need to call the abstract class's constructors from the concrete class which means that I need to use MyBase.New(...). I have included a quick example below.

Public MustInherit Class BaseClass
Public Delegate Sub WorkMethod()
Private _Work As WorkMethod

[code]....

I have tried to do this but I keep getting the following error: "Implicit reference to object under construction is not valid when calling another constructor".Can I not do what I am trying to do above? I initially had the delegate setup in its own setter method. But then I am creating a deceptive API because it does require a point to a method to work properly.

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Why Is Constructor Call Valid Only As The First Statement In An Instance Constructor

Nov 2, 2009

what's the rationale behind this limitation: Constructor call is valid only as the first statement in an instance constructor i want to pass an argument to my constructor which validates this argument and calls mybase.new according to this argument but it doesn't let me

example:

Public Class prob
Inherits System.ApplicationException
Public Sub New(ByVal problem As String, ByRef inner_exception As Exception)

[code]....

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C# - Search For Names In The Database That Matches Whole Parameters Or Any Part Of Parameters

May 13, 2011

I'm writing a query to select all records that has any part of parameter. I have one table called Employees. Some people have name like this: John David Clark If the parameter is

[Code]....

I should be able to get result back as long as there's a match in the parameters. If I use Function Contains (q.FirstName & " " & q.LastName).Contains(employeeName), I will not get any result back if employeeName is "John Clark" Function Contains looks only for next words from left to right. It doesn't match a single word at a time. So that's why I used this in the Linq to SQL:

[Code]....

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Error [07002] The # Binded Parameters < The # Of Parameters Makers

Aug 30, 2010

I am getting error [07002] the # binded parameters < the # of parameters makers, i checked both parameters were perfect even though i am getting this error here is my code

[Code]...

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C# - Difference With Parameters.Add And Parameters.AddWithValue?

Feb 6, 2012

Basically Commands has Parameters and parameters has functions like Add, AddWithValue, and etc. In all tutorials i've seen, i usually noticed that they are using Add instead of AddWithValue.

[Code]...

since it saves my coding time. So which is better to use? Which is safe to use? Does it improves performance?

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Get The GET Parameters And POST Parameters In Just One Function?

Aug 6, 2011

is there a way to get the GET parameters and POST parameters in just one function or Collection in ASP.NET? Like using $_REQUEST in PHP? I'm using VB.NET.

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Asp.net - Inherit Same Method For 2 Different Class?

Sep 22, 2010

How to simplify this, 2 method in class are identical.First class.

Public Class Gui
Inherits System.Web.UI.Page
Public Sub CreateStyleLink(ByVal StyleArray() As String)

[code].....

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C# - Using Many Classes In GUI That Inherit From A Base?

Oct 20, 2010

I have classes setup similar to this:

<DataContract()> _
Public MustInherit Class SystemTaskProcessBase
Public MustOverride ReadOnly Property Name() As String
Public MustOverride ReadOnly Property Description() As String
Public MustOverride Property Result() As SystemTaskResult

[Code]...

I need to use these classes on the client system, but also need to be able to create these "tasks" through a management interface. Each class (Task) that inherits the base, could have its own properties that are unique to each class, but at the same time, share the same common base class properties. For example, the above shows a reboot task and a delete file task, the delete file task needs to know which file to delete, so has a property for that. But the reboot task does not need this property. So when the management application is creating these tasks, it shouldn't provide a text box for the file property for the reboot task. There may be more tasks created at a later date with completely different properties.

How would I go about providing the WinForms management application a way to enumerate each class into a ListView for example, and allowing the user to create these tasks and filling in the dynamic properties that each class would have? Desired functionality would be to create a task form that creates dynamic controls available for the properties as needed, depending on the public properties in each class, but at the same time have the base class properties available as well.

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Inherit A UserControl Created?

Dec 21, 2009

I would like to inherit a UserControl I created.I use to C#, is this possible in Visual Basic? [code]The error I am getting is on the inherit BaseObject: Base class 'BaseObject' specified for class 'BaseLeftObject' cannot be different from the base class 'System. Windows.Forms.UserControl' of one of its other partial types.

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Inherit Interface Of Office 20-7?

May 25, 2009

I have a DevComponents.DotNetBar2.dll file. I want to inherits interface of it.

That is office 2007 interface but i dont know inherits it. In C# :

public partial class K47IT_Typing : DevComponents.DotNetBar.Office2007Form but in VB.NET i dont kow please tell me.

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Inherit Same Method For 2 Different Class

Dec 19, 2010

How to simplify this, 2 method in class are identical.[code]

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Inherit The Same Controls To The Next Customer?

Mar 25, 2009

i created a sales form and it is using currency also the project is working greatthe thing is when the form loads everything works great shows the decimal and dollar sign's for the first customer but when i click on the navigator for the next customer there is no decimal and dollar sign's how can i inherit the same controls to the next customer.

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Inherit Then Remove Member

Dec 26, 2009

is there anyway to inherit a class, then instead of overriding its methods, i wish to delete its methods such that my derived class would not have such a method that the base class provides

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Inherit And Then Override A Resource Or Contents Of It In .NET?

May 21, 2012

I have a project, let's call it "BASE", that has a bunch of .CSV files as Resources. The project makes references to My.Resources.XXXXXXX in different methods where XXXXXXX is the CSV filename. I am working on a class that derives from "BASE" and I would like to change some of the .CSV files and replace the ones that are in the "BASE" project with mine. I would like the methods in the base project to use my CSV files when it calls My. Resources. XXXXXX instead of the files that are in "BASE"'s Resources. Any tips on how to do it? (any .NET language is welcome)

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Inherit From A Generic Class Without Specifying A Type?

Apr 29, 2009

I have the following sample code in a VB.NET console application. It compiles and works, but feels like a hack. Is there a way to define EmptyChild so that it inherits from Intermediate(Of T As Class) without using the dummy EmptyClass?

Module Module1
Sub Main()
Dim Child1 = New RealChild()[code].....

The other way to do this would be to move the generic code out of the Base class and then create 2 Intermediate classes like this [code]...

Then RealChild would inherit from the generic Intermediate and EmptyChild would inherit from the non-generic Intermediate. My problem with that solution is that the Base class is in a separate assembly and I need to keep the code that handles the generic type in that assembly. And there is functionality in the Intermediate class that does not belong in the assembly with the Base class.

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Create A New Project And Inherit A Form From Another By Dll?

May 21, 2011

I have to create a new project and in that project I have to create a inherited form from an older project. When I choose an inherited form, it says that I only can choose a dll file. But in my older project there is only an exe file. In all subfolders I cannot find a dll file. Can anyone help me to create a dll file for the older project so I can inherit that file in the new project.

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Custom Event Inherit/reuse?

May 13, 2011

(using vb 2008 I am learning the workings of Custom Events. I think they might solve the problem of being unable to declare nonserialized events in vb2008. However, do custom events follow any sort of inheritance pattern like classes

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How To Inherit A Abstract Class In Code Behind

Aug 25, 2009

By Default code behind looks like --
Partial Public
Class InhAbs

[code].....

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Inherit From Custom Controls VS 2008

Nov 16, 2009

Is this possible? Must be surely but I've tried and come up short. I've created a very basic class (person) with 2 public properties, forename, surname. My user control is databound to this class and has 2 textboxes to store the properties.

I've built the control and can add the user control to a windows form but how can I add to a new user control (Staff) which will show my 2 existing textboxes and I can add dateJoined datepicker also??

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Inherit From ListBox ObjectCollection Collection?

Jan 12, 2010

I'm in the process of creating my own version of the Combo Box as MS version does not give me the flexibility I need, this is work fine. I just had a little niggle

The List box contains/uses ObjectCollection to hold all its objects, but it does not have the facility to inform by the way of events that an item has been added etc.

If I inherited from this collection could I add the necessary code to make this happen, I have done this in my previous controls I�ve created when I wanted this facility.

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Label1 Don't Inherit The Font Of GroupBox

Jun 9, 2011

I use visual basic 2008, I use Groupbox1, In the Groupbox1 in have two labels: label1 and label2. I have change the font of label1 with properties to size 12, No i change the font size of Groupbox1 with properties to size 8, Only label2 inherit font (8) format from GroupBox1 and label1 inherit not font change. I want that label1 and label2 inherit font from GroupBox1, always! I how can i do this?

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Plus Is There A Base Class Of Integer For Us To Inherit From?

Dec 16, 2009

why is it that Strings are declared notinheritable? plus is there a base class of Integer for us to inherit from?

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