C# Code Review And Best Suggested Review Guidelines

Introduction:

This article helps you to know about the best suggested code review for the C# language code. When we deliver code the quality of code matters a lot. Best reviewed code will improve optimization and quality on security aspects of code.

What are the benefits of Code review?

It helps a lot in finding bugs in the early stage, when they are cheap to fix. Code review also helps to maintain the code's standards compliance. It also helps to uphold consistent coding style across the company and teaching and sharing knowledge. During review team members gain better understanding of the code base and learn from each other.

Code review has a large impact on consistent design and implementation. Peer review helps to maintain a level of consistency in software design and implementation. It helps to have a higher software security. Applications that require a high level of security benefit from targeted security reviews. It is also built on team cohesion. Review discussions save team members from isolation and bring them closer to each other.

Code review gives the confidence of stakeholders. You build confidence of stakeholders about the technical quality of the execution.


                                          Source: javacodegeeks.com

Types of code reviews:

There are basically three types of Code reviews recommended and find the details below,

Peer review:

When one of your team members reviews the code to ensure that the code follows the coding standards and meets requirements.

Peer level of review can include some unit testing also. Every file in the project must go through this process.


                                   Source: biomedcentral.com

Architect Review:

The Technical Architect of the team must review the core modules of the project to ensure that they adhere to the design and there are no major mistakes that can affect the project in the long run.

It is a kind of approval from the architect to check that the code has met the design requirements.

Group Review:

This is a normally used review type where you randomly select one or more files and conduct a group review once a week.

It is always strongly recommended to distribute a printed copy of the files to all team members 15 minutes before the meeting. All of them can read and come up with points for discussion. In the group review meeting, use a projector to display the file content in the screen. Go through every section of the code and let every member give their suggestions on how could that piece of code could be written in a better way.

Best Suggested Review Guidelines:

I have explained the review guidelines that are mostly recommended in the software development process.

1. Always check for 'null', this needs to be performed wherever applicable to avoid the Null Reference Exception at runtime.
   
   
2. Check for the proper implementation of Exception Handling using the try, catch and finally blocks of code.
   
   
3. Make sure the logging of exceptions and also proper flow of application is also logged [if necessary] for better error fixing in future.
   
   
4. Check that the developer has tested his codes along with the test cases by performing unit test to make sure that basic level of testing is done.
   
   
5. Check that developer has reduced using nested if conditions as much as possible for better code functionality use switch cases wherever required.
   
   
6. Confirm that the regular for loop are replaced with by using LINQ queries and Lambda expressions to improve Readability.
   
   
7. Check that the class are marked as sealed or static or abstract as per its usage and your need.
   
   
8. It is always recommended to hand write the code even though if you are referring to the code from some sources, always it’s strongly recommended to avoid copy paste of code from other resources.
   
   
9. In the Code analysis Rules and guidelines of Microsoft it is suggested to avoid using the 'out' and 'ref' keywords in the application as much as possible.
   
   
10. Check the developer has used "Stringbuilder" instead of "string", if multiple concatenations are required in order to save heap memory.