Home
>
Software
>
.NET :Solving the Multiple Inheritance Issue Under .NET Platform

.NET :Solving the Multiple Inheritance Issue Under .NET Platform

.NET platform does not support multiple inheritance. Do not confuse multilevel inheritance with multiple inheritance. With multiple inheritance we can have a subclass that inherits from two classes at the same time.

Let's suppose we have an application that has a class Customers and another class Vendors. If you wanted to combine these two classes into one CustomerVendor class it would be a combination of Customers and Vendors just like the diagram below.

Please copy the following URL into your browser to view the diagram: http://www.vbprofs.com/images/Article Images/ThomasArt1.gif

In the above diagram we see how the CustomerVendor class inherits from both of those classes.

Multiple inheritance is complex and can be dangerous. The advantages of code re-usage prevail over complexity is up to your choice.

Multiple inheritance is not supported by VB.NET or .Net platform. Instead of multiple inheritance we can use multiple interfaces to achieve similar effect to multiple inheritance.

In VB.NET all objects have a primary or native interface, which is composed of properties, events, methods or member variables declared using Public keyword. Objects can implement also secondary interfaces by using Implement keyword.

Sometimes it is helpful for an object to have more than one interface, allowing us to interact with the object in different ways. Inheritance allow us to create subclasses that are a specialized case of the base class.

Example

Sometimes we have a group of objects that are not the similar, but we want to handle them the same manner. We want all the objects to act as if they are the same, even though they are different.

We can have some different objects in an application, such as customer, product, invoice etc. Each object would have a default interface appropriate to each individual object, and each of them is a different class. No natural inheritance is implied between these classes. Let's suppose we want to print a document for each type of object. In this case we'd like to make them all act as printable object. To accomplish this we can define a generic interface that would enable generating a printed document. By implementing a common interface we are able to write a routine that accepts any object that implements a printed document.

To conclude, by implementing multiple interfaces in VB.NET , we can achieve a similar effect to that of multiple inheritance.

Thomas is an experienced Visual Basic developer, with expertise of 7+ years developing especially financial applications. His main IT skills are VB, SQL, Crystal Reports - should you need a Visual Basic developer for your projects feel free to contact Thomas through his personal website kaloyani.com or through kaloyani.com - the newest kaloyani.com portal.

Tinley Park executive chauffeured services .. Lockport Chicago limo O’Hare

In The News:

The NeuroOne OneRF Ablation System is a new device with FDA-cleared technology designed for both diagnosing and treating neurological disorders in one procedure.

The CyberGuy provides tips to protect yourself from criminals who use various methods to make unauthorized transactions using your account information.

New drone technology maps land and water with stunning accuracy, giving researchers and conservationists a new way to understand our planet.

Stay up to date on the latest AI technology advancements and learn about the challenges and opportunities AI presents now and for the future.

X hit with massive data breach with 200 million records leaked, including emails. Tech expert Kurt “CyberGuy" Knutsson offers seven tips to help protect yourself.

Atlas robot by Boston Dynamics amazes tech expert Kurt “CyberGuy" Knutsson with its breakdancing moves.

Tech expert Kurt “CyberGuy" Knutsson talks about how Google kept Android SafetyCore details quiet until it scanned users' photos.

Hydrogen trucks debut in Georgia, sparking debates on costs and green freight gains. Kurt “CyberGuy" Knutsson comments on this promising chapter in green logistics evolution.

Tech expert Kurt “CyberGuy" Knutsson says ChatGPT learns from chats, but you should avoid sharing sensitive information to protect your privacy.

Beyond Aero's BYA-1: Hydrogen-electric jet with zero emissions, reduced costs, 2030 launch. Kurt “CyberGuy" Knutsson discusses a potential game changer in the evolution of air travel.

Kurt "CyberGuy" Knutsson explains how you can creatively repurpose your old unused Android devices, which are full of potential and hidden value.

Mech the super-humanoid robot can lift up to 132 pounds and is designed to tackle stressful and repetitive tasks that often lead to workplace injuries.

Double-clicking is something we all do, often without giving it a second thought. But it could be giving hackers permission to do something dangerous.

Stay up to date on the latest AI technology advancements and learn about the challenges and opportunities AI presents now and for the future.

Kurt the CyberGuy offers some of his easy expert tips to free up storage space on your Android if your device is running short on storage.

You can reset your internet router remotely if you're not home when your power goes out. Kurt "CyberGuy" Knutsson explains how this can be done.

The EO Canopy is a self-sustaining, solar-powered camping platform designed to provide all the comforts of home while completely off the grid.

Experts say hackers who used to focus on Windows operating systems are increasingly targeting Apple IDs as part of a new phishing campaign.

Unitree, a Chinese robotics company that developed a backflipping robot, has now introduced a humanoid robot capable of doing a side flip.

Stay up to date on the latest AI technology advancements and learn about the challenges and opportunities AI presents now and for the future.

According to the FBI, cybercriminals are sending extortion letters, threatening to release victims' sensitive information unless a ransom is paid.

FireSat is a satellite project designed to detect and track wildfires early, aiming to detect a fire that's the size of a classroom within 20 minutes.

Tech expert Kurt “CyberGuy" Knutsson reports that researchers have uncovered a Chrome vulnerability used in a cyber espionage campaign.

Preserving voicemails securely on Android: Tech expert Kurt “CyberGuy" Knutsson reveals easy methods to keep memories alive forever.

This phishing kit bypasses 2FA via session hijacking and real-time credential theft. Kurt “CyberGuy" Knutsson offers four ways to stay safe from Astaroth phishing attacks.

.NET :Solving the Multiple Inheritance Issue Under .NET Platform

Software