Best practices for Exception handeling in C#

Hello, developers and coding enthusiasts! Welcome back to our channel, where we dive deep into coding concepts and best practices. Today, we are going to explore Exception Handling in C#, a vital tool for building robust applications. So, let’s get started!
[What is Exception Handling?]
But before we dive in, let’s understand what exceptions are. Simply put, exceptions are runtime errors that disrupt the normal flow of a program. But not to worry! C# provides us with several techniques to handle these exceptions effectively.
[Using try/catch blocks]
Our first stop is the try and catch blocks. When you suspect that a particular block of code might throw an exception, you wrap that part inside a try block. And if an exception occurs, it is caught in the catch block.

[Use Specific Exception Types]
Our second best practice is to catch specific exceptions. This way, we can handle different types of exceptions in their unique ways.

[Throwing Exceptions]
Next up is throwing exceptions. When a certain condition in your code isn’t met, and you want to throw an error, you can use the throw keyword.

[Using finally blocks]
C# gives us the finally keyword, allowing us to run some cleanup code, no matter whether an exception was thrown or not.

[Using ‘using’ Statement]
The using statement in C# is your ally when it comes to managing resources like file streams or database connections. It helps ensure that these resources are properly disposed of after their usage.

[Never Swallow Exceptions]
A cardinal rule in exception handling is never to swallow exceptions. If you catch an exception, you should either handle it or re-throw it.

[Don’t Use Exceptions for Flow Control]
A key point to remember is that exceptions are meant for exceptional conditions. They should not be used as a means of controlling program flow.
[Using Exception Filters]
From C# 6 and above, we have the feature of exception filters. This lets us specify a condition in a catch clause. If the condition is true, the catch block executes; otherwise, the exception is not caught by that catch clause.

[Log Exceptions]
Our final best practice for today is logging exceptions. Keeping a record of exceptions can help immensely when debugging errors. There are many logging frameworks you can use for this, like NLog, log4net, or Serilog.

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