A file not found exception is thrown when you try to find a file that does not exist.
Suppose I set a non-existent file "new.txt" in StreamReader. If you try to access it (read it) using StreamReader it will throw FileNotFoundException -
using (StreamReader sReader = new StreamReader("new.txt")) { sReader.ReadToEnd(); }
To handle it you need to use try and catch -
Try { using (StreamReader sReader = new StreamReader("new.txt")) { sReader.ReadToEnd(); } }catch (FileNotFoundException e) { Console.WriteLine("File Not Found!"); Console.WriteLine(e); }
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