How do you handle exceptions when working with files in C#?

Question

ICSM Computer · Answer

When working with files in C#, you handle exceptions using try-catch blocks. This allows you to gracefully respond to issues like missing files, permission errors, or I/O failures. Example: Basic Exception Handling Common Exceptions to Handle Exception Description FileNotFoundException File doesn't exist. UnauthorizedAccessException No permission to access the file. IOException General I/O errors (locked files, etc.). DirectoryNotFoundException Directory does not exist. PathTooLongException File path exceeds system-defined max. Best Practice Always validate the path first using File.Exists() or Directory.Exists().Use using blocks to ensure streams are closed.Only catch exceptions you can meaningfully handle.

Exception	Description
`FileNotFoundException`	File doesn't exist.
`UnauthorizedAccessException`	No permission to access the file.
`IOException`	General I/O errors (locked files, etc.).
`DirectoryNotFoundException`	Directory does not exist.
`PathTooLongException`	File path exceeds system-defined max.

interview

How do you handle exceptions when working with files in C#?

Can you answer this question?

1 Answers

Example: Basic Exception Handling

Common Exceptions to Handle

Best Practice