C#: Read a stream from a file

Question

I have a stream saved to a file the following way:

public void SaveTest(DataObject data) { var fullPath = Path.Combine(Path.GetTempPath(), data.Descriptor.Name); var fileStream = new FileStream(Path.Combine(fullPath, ".content"), FileMode.CreateNew); data.Content.CopyTo(fileStream); fileStream.Close(); var information = new XElement("Test Information", new XAttribute("Name", data.Descriptor.Name), new XAttribute("Description", data.Descriptor.Description), new XAttribute("Owner", data.Descriptor.Owner) ); information.Save(Path.Combine(fullPath, ".information")); }

DataObject contains a stream which is the test's content and a descriptor with 3 fields I'd like to save.
Now I need a method to read those files, and I need to read the .content file as a stream, not string. How can I do that?

Jon Skeet · Accepted Answer · 2012-12-13 10:26:54Z

3

Well, you can open it as a stream as simply as:

using (var stream = File.OpenRead(path)) { ... }

Or you can read the whole lot as a byte array:

byte[] data = File.ReadAllBytes(path);

(You can then wrap that in a MemoryStream if you want.)

answered Dec 13, 2012 at 10:26

Jon Skeet

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2 Comments

Noich Over a year ago

Hi, I have a related question if you don't mind answering - After saving the stream using a file stream, when I read it and compare the two streams (using Assert), they are not equal. Do you know why?

Jon Skeet Over a year ago

@Noich: Stream doesn't override Equals. If you want to compare the contents, you'll need to read the data and compare that.

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