StreamWriter.Write doesn’t write to file; no exception thrown

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StreamWriter is buffered by default, meaning it won’t output until it receives a Flush() or Close() call.

You can change that by setting the AutoFlush property, if you want to. Otherwise, just do:

StreamWriter tw = new StreamWriter("C:\\mycode\\myapp\\logs\\log.txt");

// write a line of text to the file
tw.Write("test");
tw.Close();  //or tw.Flush();

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