How to Implement Interface in Business Central

With the release of Business Central Wave 1 2020 new feature was introduced called ‘Interface’. It is basically syntactical contract that can be implemented by a non-abstract method. This allows for writing code that reduces the dependency on implementation details, makes it easier to reuse code.

Today we will see how to write an interface and implement in Business central.

For defining interface we no need to have object id.

If you can see in above interface we just define method but not programmed any business logic.

Now Lets see how to implement interface.

Added new code unit which implements the defined interface.

For checking the result of interface created following page with one function.

Above function to initialize the interface.

Lets check the result of interface.

Hope this will help you to understand interface and implementation.

To understand more on differentiate between events and interface read Interface Vs Events..

Stay tuned for more…


Events vs Interface :- Business Central

While working on new baby ‘Interface’ identified few difference between Events and interface.

Select Events to Subscribe. Subscription optional.All Methods are mandatory defined in interface code unit and need to implement all
Used to react Used to Invoke.
Extensibility for few methods or functionsExtensibility for many methods.
All Subscribers are invokedOnly single code unit is invoked.
Can Invoke Interface.Can bind events.

Hope this will help you..

Stay tuned for more.