Solid principles tutorial how to#
Solid principles tutorial software#
Solid principles tutorial code#

Please have a look at the following diagram.Īs you can see in the above diagram, now we are going to create three classes.

Solid principles tutorial how to#

Now let us discuss how to implement the above functionalities in such a way that, it should follow the Single Responsibility Principle.

Solid principles tutorial code#

Here we need to write the Code for Email setting and sending the invoice mail Public void SendInvoiceEmail(MailMessage mailMessage) Here we need to write the Code for Deleting the already generated invoice MailMessage mailMessage = new MailMessage('EMailFrom', 'EMailTo', 'EMailSubject', 'EMailBody') Once the Invoice has been added, then send the mail Here we need to write the Code for adding invoice The following is the complete code and it is self-explained, so please go through the comments. This is because Sending Emails and Error Logging are not a part of the Invoice module. As we are putting all the above four functionalities into a single class or module, we are violating the Single Responsibility Principle in C#. Please have a look at the following diagram that we want to implement in the following example.Īs you can see in the above image, we are going to create an Invoice class with four functionalities as Adding and Deleting Invoices, Error Logging as well as Sending Emails.

Chance of duplicating the logic of other parts of the applicationĮxample: Without using Single Responsibility Principle in C#:.

So, by mixing multiple responsibilities into a single class, we are getting the following disadvantage, Then it becomes very difficult to change one responsibility without breaking the other responsibilities. If we write the database logic, business logic as well as display logic in a single class, then our class performing multiple responsibilities.

The Invoice class does not know how to retrieve the data, or how to format the data for display, print, logging, or sending an email, etc. As we know an Invoice class basically used to calculate various amounts based on its data. Suppose we need to design an Invoice class. Let us understand the need for the Single Responsibility Principle in C# with an example. How can we achieve the Single Responsibility Principle in C#? So, with the help of SRP in C#, the classes become smaller and cleaner and thus easier to maintain. That does not mean your class should contain only one method or property, you can have multiple members (methods or properties) as long as they are related to a single responsibility or functionality.

Solid principles tutorial software#

So we need to design the software in such a way that everything in a class or module should be related to a single responsibility. In other words, we can say that each module or class should have only one responsibility to do. The Single Responsibility Principle in C# states that “ Each software module or class should have only one reason to change“. What is the Single Responsibility Principle in C#?

Problems of not following the Single Responsibility Principle.

Example without using the Single Responsibility Principle.

How can we achieve the Single Responsibility Principle in C#?.

What is the Single Responsibility Principle in C#?.

As part of this article, we are going to discuss the following pointers in detail. The letter S in S OLID stands for the Single Responsibility Principle which is also known as SRP. Please read our previous article before proceeding to this article where we discussed the basics of the SOLID Design Principle in C#. In this article, I am going to discuss the Single Responsibility Principle in C# with Examples.

Single Responsibility Principle in C# with Examples Data Structures and Algorithms Tutorials.Software entities (e.g., classes, modules, functions) should be open for an extension, but closed for modification.