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C# Best Practices

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Charlin Agramonte

This document provides tips for best practices in C#. It discusses standardization, simplification, readability, exposure, and performance. For standardization, it recommends using language conventions and coding standards. For simplification, it suggests doing less work, avoiding deep nesting, removing redundant code, and using frameworks. For readability, it advises using clear naming, avoiding abbreviations, and writing small and well-parameterized methods. For exposure, it discusses access levels and marking classes as sealed. For performance, it includes tips about string concatenation, exceptions, garbage collection, asynchronous methods, and loops.

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C# Best Practices Charlin Agramonte & Rendy Del Rosario
Rendy Del Rosario charlin@crossgeeks.com @chard003 xamgirl.com rendy@crossgeeks.com @rdelrosario xamboy.com Charlin Agramonte
C# Best Practices
Standardization Simplification Exposure Readability Performance
Standardization
C# Best Practices
TIP 1 Use language conventions
https://github.com/ktaranov/naming-convention/blob/master/C%23%20Coding%20Standards%20and%20Naming%20Conventions.md
TIP 2 Establish coding standards
Or
Or
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TIP 3 No spanglish POR FAVOR!
C# Best Practices
TIP 4 Watch out with the TYPOS!
C# Best Practices
Simplification
C# Best Practices
TIP 1 Why do more if you can do less
Example 1
Example 2
Example 3
Example 4
Example 5
Example 6
TIP 2 Avoid nesting too deeply and return early
C# Best Practices
TIP 3 Avoid redundant code
Example 1
Example 2
TIP 4 Don¡¯t reinvent the wheel embrace the framework
C# Best Practices
TIP 5 Avoid conditionals when polymorphism can do the job
C# Best Practices
Readability
C# Best Practices
TIP 1 Use clear and meaningful names
C# Best Practices
TIP 2 Don¡¯t use abbreviations
C# Best Practices
TIP 3 No magic values
PLEASE DON¡¯T USE SCREAMING CAPS!
TIP 4 Avoid having too many parameters
C# Best Practices
TIP 5 Don¡¯t add unneeded context
C# Best Practices
TIP 6 Keep your methods small
C# Best Practices
TIP 7 Use String Interpolation
C# Best Practices
Exposure
C# Best Practices
TIP 1 Specify the correct access level for the variables, methods, properties, classes based on the context
C# Best Practices
Expectation Reality
TIP 2 Immutability is your friend
C# Best Practices
TIP 3 Mark as readonly what¡¯s readonly :V
C# Best Practices
TIP 4 Mark classes that shouldn¡¯t be extended as sealed
C# Best Practices
Performance
C# Best Practices
TIP 1 Always use StringBuilder for heavy String concatenation operations
C# Best Practices
TIP 2 Throw Fewer Exceptions
C# Best Practices
TIP 3 Relieve the pressure on the garbage collector
C# Best Practices
TIP 4 Async void is evil
C# Best Practices
TIP 5 Use the right Loop
C# Best Practices
TIP 6 Stay tuned to the evolution of C#
charlin@crossgeeks.com @chard003 xamgirl.com rendy@crossgeeks.com @rdelrosario xamboy.com Thanks!!!
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C# Best Practices