Question

I cannot get this to work. I have a MemoryStream object. This class
has a Position property that tells you how many bytes you have read.

What I want to do is to delete all the bytes between 0 and Position-1

I tried this:

MemoryStream ms = ...
ms.SetLength(ms.Length - ms.Position);

but at some point my data gets corrupted.

So I ended up doing this

MemoryStream ms = ...
byte[] rest = new byte[ms.Length - ms.Position];
ms.Read(rest, 0, (int)(ms.Length - ms.Position));
ms.Dispose();
ms = new MemoryStream();
ms.Write(rest, 0, rest.Length);

which works but is not really efficient.

Any ideas how I can get this to work?

Thanks

Answer 1

You can’t delete data from a MemoryStream – the cleanest would be to create a new memory stream based on the data you want:

MemoryStream ms = new MemoryStream(someData);
//ms.Position changes here
//...
byte[] data = ms.ToArray().Skip((int)ms.Position).ToArray();
ms = new MemoryStream(data);