C# - advanced patterns with Asynchronous File I/O and Memory Stream Disposal
I'm refactoring my project and I can't seem to get I'm experiencing unexpected behavior when trying to read from a file asynchronously in C#... The question arises when I attempt to use a `MemoryStream` to buffer the file read operations, and then subsequently dispose of it. I expect the data in the stream to be available for processing, but I'm working with issues that lead to an `ObjectDisposedException`. My code looks something like this: ```csharp using System; using System.IO; using System.Threading.Tasks; public class FileReader { public async Task<string> ReadFileAsync(string path) { using (var memoryStream = new MemoryStream()) { using (var fileStream = new FileStream(path, FileMode.Open, FileAccess.Read)) { await fileStream.CopyToAsync(memoryStream); } // Trying to access memoryStream here leads to an exception memoryStream.Position = 0; // Reset stream position using (var reader = new StreamReader(memoryStream)) { return await reader.ReadToEndAsync(); } } } } ``` When I run this code, I get the following behavior message: `System.ObjectDisposedException: want to access a disposed object.` This happens because the `memoryStream` seems to be disposed before I can read from it. I have tried moving the `StreamReader` outside of the `using` block for `MemoryStream`, but it didn't seem to resolve the scenario. I also considered alternatives like reading directly into a string without using `MemoryStream`, but I would prefer to have that intermediate buffer. Does anyone have insights on how to handle this case properly? Am I mismanaging the disposal lifecycle of the stream objects here? For reference, this is a production microservice. I'd really appreciate any guidance on this. Has anyone else encountered this?