C# Compass

File I/O

C# File Reading

Reading Files

C# file reading uses File.ReadAllText with async support.

Introduction to File Reading in C#

In C#, reading files is a common operation that can be performed using the File.ReadAllText method. This method allows you to read the contents of a file into a string, making it straightforward to handle file data. Additionally, C# provides asynchronous support for file reading, which is crucial for improving performance in applications that require efficient I/O operations.

Using File.ReadAllText

  • Namespace: System.IO
  • Method: ReadAllText

Asynchronous File Reading with File.ReadAllTextAsync

Using asynchronous methods can help keep your application responsive, especially in UI applications or when performing other tasks in parallel.

Handling Exceptions During File Reading

Common exceptions include:

  • FileNotFoundException: Thrown when the file specified in the path is not found.
  • UnauthorizedAccessException: Thrown when the caller does not have the required permission.
  • IOException: Thrown when an I/O error occurs.

Conclusion

In the next post, we will explore file writing techniques in C# to complement your understanding of file I/O operations.

File I/O

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File Writing