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.

Mercedes Benz s500 rentals Salem ..

In The News:

Tech guru Kurt "CyberGuy" Knutsson explains an easy trick to avoid squinting while working or surfing the web by zooming in on your personal computer.

Streaming giant Roku has recently been targeted by a pair of cyberattacks, and the company confirmed over a half million Roku accounts were compromised.

The Land Aircraft Carrier combines an all-terrain, six-wheeled vehicle with a two-seat aircraft, which features electric vertical takeoff and landing.

The European Union has sent TikTok a "request for information" on the video sharing platform's newest app, TikTok Lite, under the Digital Services Act, with the aim to clean up social media.

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

The FBI is warning the public about a recent phishing scam via text that claims its targets owe money in Pennsylvania for unpaid road toll charges.

Your Apple Music settings may be revealing to your contacts what you're listening to. Kurt "CyberGuy" Knutsson explains the process to change those settings.

Learn how to secure social media accounts, implement legacy contacts, and create a digital estate plan to protect your online assets from 'ghost hackers' after your death.

A ported phone number scam is leading to more people having their identities stolen by sophisticated scammers. Kurt “CyberGuy" Knutsson tells you what you need to know.

The Great Pacific Garbage Patch, a vast marine debris vortex, is being tackled by The Ocean Cleanup’s innovative technologies. Kurt “CyberGuy" Knutsson explains.

Discover easy solutions to tame autocorrect frustration on iOS and Android devices. Turn off, customize and add personal touches to your typing experience.

Kurt “CyberGuy" Knutsson reveals the six top things to do right now before it’s too late: Tech and life choices that can keep your safer on and offline.

Kurt “CyberGuy" Knutsson shows you some simple steps to discreetly hide apps or an entire app page on your iPhone for decluttering or confidentiality.

The ambient light sensors on smartphones may be turned into cameras, according to researches at MIT. This could pose a threat to people's privacy.

The Autonomous Road Repair System from tech firm Robotiz3d uses artificial intelligence technology to locate potholes and promptly seal them.

Scammers have stooped to using artificial intelligence to scan obituary websites to create fake obituary websites to target the grieving.

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

A Mercedes-Benz Manufacturing factory in Hungary is using humanoid robots to help with human staffing shortages on the factory floor.

Some video games act like unregulated banks, according to CFPB, which has begun monitoring the situation. The agency says children may be most at risk.

Ascender the robot is capable of climbing stairs with heights up to 8.7 inches, and it can give every corner of your home a deep cleaning.

Tax-return scams are on the rise, and one tax expert from a cybersecurity firm says filing your taxes on time is one way to avoid tax scams.

The innovative XPENG Robot Unicorn is inspired by the mythical unicorn, and you may forget the robot is not actually a living creature.

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

The Federal Trade Commission, the federal agency to report scams to, is being impersonated as part of a new sophisticated phone scam.

Eatrenalin is a restaurant in Germany with a Floating Chair innovation that makes the 17,000-square-foot venue feel like an amusement park.

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

Software