What is exception filtering in C#?

What is exception filtering in C#?

Exception filtering in C# allows you to catch exceptions based on specific conditions, using the 'when' keyword.

Can you give me an example of how to use exception filtering?

Sure! Here's a simple example:

try {
    // Code that may throw an exception
} catch (Exception ex) when (ex is ArgumentNullException) {
    // Handle ArgumentNullException specifically
} catch (Exception ex) {
    // Handle other exceptions
}

What are the benefits of using exception filtering?

The benefits include more precise error handling, improved readability, and the ability to handle specific exceptions without cluttering your catch blocks.

Are there any limitations to exception filtering?

Yes, one limitation is that the filter condition is evaluated every time the exception is caught, which can impact performance if not used judiciously.