Basics
C# Errors
Handling C# Errors
C# errors use try-catch with typed exceptions for safety.
Introduction to Error Handling in C#
In C#, error handling is crucial for building robust applications. The try-catch mechanism allows developers to handle exceptions smoothly, ensuring that the program can manage unexpected conditions without crashing. Let's delve into how you can implement error handling in C# using typed exceptions for added safety.
Understanding Exceptions in C#
Exceptions in C# are objects that encapsulate information about an error. They are instances of classes derived from the System.Exception base class. Common built-in exceptions include NullReferenceException, IndexOutOfRangeException, and InvalidOperationException. You can also create custom exceptions by extending the Exception class.
Using Try-Catch Blocks
A try-catch block is a fundamental construct in C# used to catch and handle exceptions. The code that might throw an exception is placed inside the try block, and the handling code goes inside the catch block.
Here's a basic example:
Catching Multiple Exceptions
In scenarios where different types of exceptions might be thrown, you can catch multiple exceptions by using multiple catch blocks. Each block can handle a different exception type.
For example:
The Finally Block
The finally block can be used to execute code regardless of whether an exception is thrown or not. It is often used for cleaning up resources, such as closing files or releasing network connections.
Example of using finally:
Creating Custom Exceptions
Creating custom exceptions can be useful when you need to handle specific error conditions in your application. Custom exceptions should inherit from the Exception class.
Here's how you can create a custom exception:
