logo
down
shadow

Best way to instantiate a class with a private object that needs instantiating as well


Best way to instantiate a class with a private object that needs instantiating as well

By : Alexiron
Date : October 16 2020, 06:10 PM
Does that help For this, you need to look at the D in SOLID: Dependency Inversion.
MyClass needs an instance of ObjectRepository to do whatever it does; it has a dependency on ObjectRepository. Under the Dependency Inversion principle, it should instead depend on an abstraction, rather than a concrete type. In C#, the usual way to do this would be with an interface, something like IObjectRepository, which has all the methods on it that MyClass needs, but nothing else. It could also be done with an abstract base class, but that's less common.
code :
public MyClass
{
    private IObjectRepository _objectRepository;

    public MyClass(IObjectRepository objectRepository)
    {
        _objectRepository = objectRepository;
    }
}
objects.Add(new MyClass(new ObjectRepository()));
var container = new SomeIoCContainer();
container.For<IObjectRepository>().Use<ObjectRepository>();

var myClass = container.Resolve<MyClass>();


Share : facebook icon twitter icon
Instantiate a derived class object, whose base class ctor is private

Instantiate a derived class object, whose base class ctor is private


By : Aya Tsumaki
Date : March 29 2020, 07:55 AM
Hope this helps There are two ways:
Make the base class constructor either public or protected. Or, make the derived class a friend of the base class. see demo
How to instantiate an inner class without instantiating the outer

How to instantiate an inner class without instantiating the outer


By : Real Estate Mike
Date : March 29 2020, 07:55 AM
hop of those help? If your inner class is associated to an instance of your outer class, you wouldn't be able to do that. IOW, if your inner class is not a static inner class, then it really doesn't make sense to create your inner class alone, right?
On the other hand, you can change your inner class to a static inner class. But you have to be careful if this is what you need since you are basically saying that the static inner class is not dependent on any one instance of the outer class.
C++ - How to instantiate object with constructor private in another class

C++ - How to instantiate object with constructor private in another class


By : Sam
Date : March 29 2020, 07:55 AM
it should still fix some issue You can initialise m_piece in the Foo constructor to call a specific constructor, e.g.:
code :
class Foo
{
    Foo() : m_piece(0,0)
    {
    }
}
What is the benefit of having a private constructor and a use a method inside companion object to instantiate a class?

What is the benefit of having a private constructor and a use a method inside companion object to instantiate a class?


By : user2413374
Date : March 29 2020, 07:55 AM
With these it helps There are several benefits to providing a factory method instead of a public constructor, including:
Error Cannot Instantiate Abstract Class when Instantiating Inherited Class

Error Cannot Instantiate Abstract Class when Instantiating Inherited Class


By : Alex S
Date : March 29 2020, 07:55 AM
seems to work fine Perhaps it would be simple to transfer the elements you want to delete:
Related Posts Related Posts :
  • Can not convert 'string' to 'int'
  • Passing Type to Method for Use in Generic
  • Getting the value of an integer array from LIST<>
  • Parsing Html tags using c#
  • ListBox Showing First Item Only
  • developing a GUI in C# on Cosmos OS
  • How can I refactor this to work without breaking the pattern horribly?
  • Type Parameter Unification
  • Unit testing an MVC action method with a Cache dependency?
  • Finding a sequence in a List
  • How to read binary column in database into image on asp.net page?
  • Form.Show() is not showing it's child controls
  • Clearing WebBrowser control's cookies for all sites WITHOUT clearing for IE itself
  • Linq 2 Sql DateTime format to string yyyy-MM-dd
  • is there a better way to write this frankenstein LINQ query that searches for values in a child table and orders them by
  • Combine NotifyIcon and ToolTip
  • How to apply custom BidirectionalGraph from QuickGraph to GraphLayout from Graph#?
  • How do I output coloured text from by unit tests in the R# Unit Test Session window in Visual Studio?
  • C# - Getting a RawFraction Performance Counter to show a persistent value
  • Copy a ListView’s Items to the Clipboard in WPF C#
  • How to get the project path at Design Time
  • How do I parse the free format address to save into the DataBase
  • Populate StackPanel with checkbox's from Database
  • .Net/C# Build Tool - Is NAnt a preferred tool?
  • ASP.NET MVC: Localization issues (wrong resx file for culture)
  • WPF Toolkit Pie Chart Style Colors
  • .NET File locking problem
  • How to insert more than 256 columns in a Open Office Calc sheet using c#?
  • Why does FileDialog sometimes not remember the initial directory?
  • ActiveDirectory DirectorySearcher: Check if user is member of a group
  • How can I use Moq here?
  • How to copy file to the C:\Program Files (x86)\
  • Is -10 between 1.5 × 10^-45 and 3.4 × 10^38?
  • Is it possible to get the item index using Contains?
  • save System.Net.mail.MailMessage as .msg file
  • SystemParametersInfo parameter definitions for C#
  • How to add/edit functionality in the same page without flickering?
  • NHibernate generate mappings from classes?
  • How to prevent out-of-range datetime value error?
  • how to inject logger instance to every class that has a property of type ILogger using MEF
  • UDPClient First Time Using -- What's Wrong?
  • Help with debugging COM errors? (.mdi to .pdf file conversions using Microsoft Office Document Imaging)
  • Need to iterate through SQL table rows, one at a time (table too big to use adapter.Fill)
  • Why are virtual methods considered early bound?
  • programatically get public key token using .snk file c#
  • Howto place data from DataSet to List
  • C# what is the size of unmanaged object?
  • C# why sizeof is unsafe and how to get size of a struct in a safe way?
  • NullReferenceException with Ckeditor 5 and ASP.NET MVC bundle error?
  • How to refresh unc path cache?
  • dllexport Struct pointers and returning uint8_t
  • Is it a good practice to have setter in the get instance property of a singleton class
  • How to sort the coordinates of a hash set in C#
  • Multiply 64-bit integers using .NET Core's hardware intrinsics
  • How to parse string data to string and long?
  • Submit Button is not working In Razor asp.net mvc
  • While loop multiple condition check with single variable
  • Inside a catch clause, how can I see an exception without a name
  • How I can use Certificate.pfx for windows exe build
  • I'm trying to detect that SQL Server Compact Edition is installed in a system or not
  • shadow
    Privacy Policy - Terms - Contact Us © 35dp-dentalpractice.co.uk