• Rules for writing and reviewing code

  Click to expand

  • Rule 1: Does that code fulfill requirements

  • Rule 2: Formatting is king

  • Rule 3: Don't Repeat Yourself => generalize by abstract class, interface, generic, method

  • Rule 4: Follow the Coding convention

  • Rule 5: Be Consistent with source code (có tính thống nhất)

  • Rule 6: Does Code run fast (For example use Eager loading to load related entities )

  • Rule 7: Avoid Security Pitfalls (SQL Injection, cross-site scripting)

  • Rule 8: Use Efficient Data Structures and Algorithms

  • Rule 9: Comment and Document

  • Rule 10: Check for Errors and Respond to Them

  • Rule 11: Create meaningful names

  • Rule 12: Avoid Deep Nesting

  • Rule 13: Use ternary operator instead of If else

  • Rule 14: Do not hard code (Avoid Magic Number-> use Constants and Enum) https://stackoverflow.com/questions/47882/what-is-a-magic-number-and-why-is-it-bad)

  • Rule 15: Follow SOLID Principles

  • References:

    • https://www.informit.com/articles/article.aspx?p=2223710

    • https://docs.microsoft.com/en-us/dotnet/csharp/fundamentals/coding-style/coding-conventions

    • https://code.tutsplus.com/tutorials/top-15-best-practices-for-writing-super-readable-code--net-8118

• Architecture and Design Pattern: https://github.com/Trung1234/Csharp4/tree/main/ArchitecturePractice

• MVC Best Practice: https://github.com/Trung1234/Csharp4/tree/main/MVCBestPractice

• SQL Best Practice: https://github.com/Trung1234/Csharp4/tree/main/SQlPractice

• https://haodev.wordpress.com/2021/03/25/devup-chicken-soup-for-developers/

• Data encryption: https://tedu.com.vn/bao-mat/tong-quan-cac-loai-thuat-toan-ma-hoa-du-lieu-106.html

• Bscrypt: https://jasonwatmore.com/post/2020/07/16/aspnet-core-3-hash-and-verify-passwords-with-bcrypt

• Has256: https://www.c-sharpcorner.com/article/compute-sha256-hash-in-c-sharp/

• == and Equals(): https://www.c-sharpcorner.com/UploadFile/3d39b4/difference-between-operator-and-equals-method-in-C-Sharp/

• Pass a number of arguments : https://www.c-sharpcorner.com/UploadFile/manas1/params-in-C-Sharp-pass-variable-number-of-parameters-to-method/

• String and StringBuilder: https://www.c-sharpcorner.com/UploadFile/19b1bd/comparison-of-string-and-stringbuilder-in-C-Sharp/

• https://www.c-sharpcorner.com/UploadFile/b926a6/create-crystal-report-step-by-step-using-sql-database-view/

• Callback: https://toidicodedao.com/2015/02/10/series-c-hay-ho-callback-trong-c-delegate-action-predicate-func/

• Unit test:

  Click to expand

  • https://docs.microsoft.com/en-us/visualstudio/test/run-unit-tests-with-test-explorer?view=vs-2022

  • Use AxoCover to display sequence and branch coverage in the code editor: https://marketplace.visualstudio.com/items?itemName=axodox1.AxoCover

  • Xunit https://www.c-sharpcorner.com/article/implementing-unit-and-integration-tests-on-net-with-xunit/

        + Moq Mocking Framework: https://www.c-sharpcorner.com/article/moq-mocking-framework-with-xunit-net-testing-fr/
        + To generate coverage report : Tools -> NuGet Package Manager -> Package Manager Console 
              + dotnet test --collect:"XPlat Code Coverage"
              + reportgenerator -reports:"YourGeneratedXML" -targetdir:"coveragereport" -reporttypes:Html
    

• Async

  Click to expand

  • Task: https://www.c-sharpcorner.com/UploadFile/dacca2/asynchronous-programming-in-C-Sharp-5-0-part-3-understand-task/

  • https://docs.microsoft.com/en-us/dotnet/csharp/programming-guide/concepts/async/

• Linq

  Click to expand

  • https://www.c-sharpcorner.com/UploadFile/a20beb/ienumerable-vs-iqueryable-in-linq/k/
  • https://trungsieunhan24blog.wordpress.com/2018/10/30/3-loa%cc%a3i-excution-trong-linq/
  • https://tedu.com.vn/lap-trinh-c/su-khac-nhau-giua-ienumerable-va-iqueryable-35.html

  • Earger loading: https://tedu.com.vn/lap-trinh-aspnet/tim-hieu-ve-lazyloading-va-earger-loading-trong-entity-framework-120.html

  • Left join: https://www.c-sharpcorner.com/blogs/working-with-left-outer-join-using-lambda-and-linq

• Relationship : https://www.c-sharpcorner.com/UploadFile/b1df45/dependency-generalization-association-aggregation-compos/

• Custom Authentication In ASP.NET Core 3.1 : https://www.c-sharpcorner.com/article/login-and-role-based-custom-authentication-in-asp-net-core-3-1/

• Export

  • Excel: https://help.syncfusion.com/wpf/datagrid/export-to-excel

  • Epplus: https://www.c-sharpcorner.com/article/import-and-export-data-using-epplus-core/

  • Pdf: https://www.dotnetspider.com/resources/29759-Exporting-GridView-PDF.aspx

• Using Delegates to Communication Between Windows Forms

  • https://www.c-sharpcorner.com/article/using-delegates-to-communication-between-windows-forms/

• Upload and Read Excel File:

  • https://www.codingvila.com/2021/02/upload-and-read-excel-file-in-web-api.html

• EntityFramework:

  • Cascade Delete: https://docs.microsoft.com/en-us/ef/core/saving/cascade-delete

  • Tracking: https://docs.microsoft.com/en-us/ef/core/querying/tracking

  • Index: https://docs.microsoft.com/en-us/ef/core/modeling/indexes?tabs=data-annotations

  • Relationship: https://docs.microsoft.com/en-us/ef/core/modeling/relationships?tabs=data-annotations%2Cfluent-api-simple-key%2Csimple-key#required-and-optional-relationships

• Global Error handling: https://code-maze.com/global-error-handling-aspnetcore/

• Code review guidelines:

  • https://www.michaelagreiler.com/code-review-checklist-2/
  • https://www.c-sharpcorner.com/article/important-tips-to-write-clean-code-in-visual-studio/
  • https://tedu.com.vn/thu-thuat-lap-trinh/7-buoc-de-thuc-hien-code-review-104.html

• Interview Tips:

  • https://www.c-sharpcorner.com/UploadFile/puranindia/ASP-NET-MVC-Interview-Questions/
  • https://www.c-sharpcorner.com/UploadFile/puranindia/C-Sharp-interview-questions/
  • https://www.c-sharpcorner.com/UploadFile/65794e/sql-interview-questions/
  • https://ankitsharmablogs.com/csharp-coding-questions-for-technical-interviews/

• Interview with C# Corner MVP Ankit Sharma:

  • https://docs.microsoft.com/en-us/archive/blogs/wikininjas/interview-with-a-asp-net-wiki-ninja-and-c-corner-mvp-ankit-sharma

The Importance of Knowing Patterns This post is more dedicated to beginners who do not yet understand what is the point of learning and using patterns.

Initially, I also didn’t understand what was the point of using some kind of design pattern in the code - after all, you can just write everything as you want 🤪

And then it turned out that there was a lot of repeating code, just an unrealistically large number of dependencies - and the whole trash was that when changes were made, something else broke 😵

But to solve this whole problem, to distribute the code into classes, interfaces and make normal inheritance - that's exactly what design patterns exist for.

Patterns are already ready-made solutions to the problem and depend on what kind of task we are facing.

So if you are a beginner - and you want to make your code clean, understandable, structured - I recommend that you study design patterns 🤘