How To Read, Then Write To An Embedded Resource In C#

Question

I keep getting the error "Stream was not writable" whenever I try to execute the following code. I understand that there's still a reference to the stream in memory, but I don't know how to solve the problem. The two blocks of code are called in sequential order. I think the second one might be a function call or two deeper in the call stack, but I don't think this should matter, since I have "using" statements in the first block that should clean up the streams automatically. I'm sure this is a common task in C#, I just have no idea how to do it...

string s = "";

using (Stream manifestResourceStream =
    Assembly.GetExecutingAssembly().GetManifestResourceStream("Datafile.txt"))
{
    using (StreamReader sr = new StreamReader(manifestResourceStream))
    {
        s = sr.ReadToEnd();
    }
}

...

string s2 = "some text";

using (Stream manifestResourceStream =
    Assembly.GetExecutingAssembly().GetManifestResourceStream("Datafile.txt"))
{
    using (StreamWriter sw = new StreamWriter(manifestResourceStream))
    {
        sw.Write(s2);
    }
}

Any help will be very much appreciated. Thanks!

Andrew

Answer 1

Embedded resources are compiled into your assembly, you can't edit them.