How do I copy the contents of one stream to another?

Question

What is the best way to copy the contents of one stream to another? Is there a standard utility method for this?

Answer 1

There may be a way to do this more efficiently, depending on what kind of stream you're working with. If you can convert one or both of your streams to a MemoryStream, you can use the GetBuffer method to work directly with a byte array representing your data. This lets you use methods like Array.CopyTo, which abstract away all the issues raised by fryguybob. You can just trust .NET to know the optimal way to copy the data.