Exception Handling in C# - Types, Examples, and Practical Guide

A practical guide to exception handling in C#, covering common exception types, custom exceptions, and best practices.

Common Built-in Exception Types

C# provides many built-in exception types, such as NullReferenceException, IndexOutOfRangeException, and DivideByZeroException, each representing a specific kind of runtime error.

Catching Multiple Exception Types

Multiple catch blocks can be chained after a single try block, allowing different types of exceptions to be handled with different logic.

Creating Custom Exceptions

Custom exception classes can be created by deriving from the built-in Exception class, letting you represent application-specific error conditions clearly.

Best Practices for Exception Handling

Catch only the exceptions you can meaningfully handle, avoid using exceptions for regular control flow, and always provide clear, informative error messages.