>I am using a StreamReader to read through a file. When I find the phrase I'm looking for, I then replace it with some other text. It is all appended to a string. I then close the StreamReader, and attempt to replace the file's contents with the new stirng using a streamwriter.
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>When I do
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>rdr.Close();
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>StreamWriter wr = new StreamWriter(FileName);
>wr.Write(NewText);
>wr.Close();
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>It errors on the StreamWriter saying the file is in use. You can see the Reader is closed.

put a messagebox or a Thread.Sleep between rdr.Close(); and StreamWriter wr = new StreamWriter(FileName); to see if it is a timing issue. You don't give the reader a whole lot of time to close before you open it.

Einar