Catch file read exception and retry : Stream Read Write « File Stream « C# / C Sharp






Catch file read exception and retry

   
using System;
using System.IO;

class Retry {
    static void Main() {
        StreamReader sr;

        int attempts = 0;
        int maxAttempts = 3;

    GetFile:
        Console.Write("\n[Attempt #{0}] Specify file " + "to open/read: ", attempts + 1);
        string fileName = Console.ReadLine();

        try {
            sr = new StreamReader(fileName);
            string s;
            while (null != (s = sr.ReadLine())) {
                Console.WriteLine(s);
            }
            sr.Close();
        } catch (FileNotFoundException e) {
            Console.WriteLine(e.Message);
            if (++attempts < maxAttempts) {
                Console.Write("Do you want to select another file: ");
                string response = Console.ReadLine();
                response = response.ToUpper();
                if (response == "Y") goto GetFile;
            } else {
                Console.Write("You have exceeded the maximum retry limit ({0})", maxAttempts);
            }
        } catch (Exception e) {
            Console.WriteLine(e.Message);
        }

    }
}

   
    
  








Related examples in the same category

1.Use StreamWriter to create a text file
2.Reading from a text file line by line
3.Read data in line by line
4.StreamReader.ReadLine
5.Construct StreamWriter from FileSream
6.Create a StreamWriter in UTF8 mode
7.StreamReader And Writer
8.illustrates reading and writing text dataillustrates reading and writing text data
9.Asynchronously reads a streamAsynchronously reads a stream
10.The use of a buffered stream to serve as intermediate data holder for another streamThe use of a buffered stream to serve as intermediate data holder for another stream
11.Demonstrates attaching a StreamReader object to a stream
12.Demonstrates attaching a StreamWriter object to a stream
13.A simple key-to-disk utility that demonstrates a StreamWriterA simple key-to-disk utility that 
   demonstrates a StreamWriter
14.Open a file using StreamWriterOpen a file using StreamWriter
15.A help program that uses a disk file to store help informationA help program that uses a disk file 
   to store help information
16.Try and catch exceptions for StreamWriter
17.Using StreamWriter 3
18.Utility class that provides methods to manipulate stream of data.
19.Reads a stream into a byte array.
20.Copies one stream into another.
21.Copy Stream from fromStream to toStream
22.Enumerate Lines for StreamReader
23.Enumerate non-empty Lines for StreamReader
24.Fifo Stream
25.Read from stream
26.Read from a Stream ensuring all the required data is read.
27.Serializes and object to a stream. It will flush and close the underlying stream.
28.Add OutputStream and InputStream to IDbCommand
29.Read Stream to End
30.Copy Stream and close
31.Stream Converter
32.Buffered InputStream
33.Page Filter Stream
34.Copies an Stream into another Stream.