How can you read and write to a file simultaneously using FileStream?

Question

ICSM Computer · Answer

To read and write to a file simultaneously using FileStream, you can open the file with:
FileAccess.ReadWrite (allows both reading and writing)A suitable FileMode like Open or OpenOrCreate
Example: Read and write to the same file
using System;
using System.IO;
using System.Text;
class Program
{
    static void Main()
    {
        string path = "sample.txt";
        using (FileStream fs = new FileStream(path, FileMode.OpenOrCreate, FileAccess.ReadWrite))
        {
            // Write to the file
            byte[] writeData = Encoding.UTF8.GetBytes("Hello, World!");
            fs.Write(writeData, 0, writeData.Length);
            // Move the position back to the beginning before reading
            fs.Seek(0, SeekOrigin.Begin);
            // Read from the file
            byte[] readData = new byte[writeData.Length];
            fs.Read(readData, 0, readData.Length);
            Console.WriteLine("Read content: " + Encoding.UTF8.GetString(readData));
        }
    }
}
Notes:
Use fs.Seek(0, SeekOrigin.Begin) to reposition the stream before reading.
This works for simple scenarios. For concurrent read/write from different threads, you'd need more advanced synchronization.

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How can you read and write to a file simultaneously using FileStream?

ICSM Computer

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Example: Read and write to the same file

Notes:

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