Need help with IOException

Justin N

how do i stop this from throwing an IOException?
namespace BrowseFileSystem
{
    class Program
    {
        static void Main(string[] args)
        {
            string input = Console.ReadLine();
            MemoryStream ms = new MemoryStream();
            StreamWriter sw = new StreamWriter(ms);
            sw.Write(input);
            ms.WriteTo(File.Create(@"f:\textfile2.txt"));
            sw.Close();
            ms.Close();

            //while (true)
            //{
            //    try
            //    {
            StreamReader sr = new StreamReader(@"f:\textfile2.txt");
            Console.WriteLine(sr.ReadToEnd());
            //    }
            //    catch (Exception) { }
            //}
        }
    }
}

4 Replies

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Hiren Soni16y ago
add file.exists wherever you required. Dont 4get to accept answer
Justin N16y ago
If someone could just put this into a new project and check it out I would be greatly thankful. Im creating demo applications for learning purposes, which is the reason why I am writing and reading sequentially
Justin N16y ago
nope that didnt work, heres what I typed...

namespace BrowseFileSystem
{
    class Program
    {
        static void Main(string[] args)
        {
            string input = Console.ReadLine();
            MemoryStream ms = new MemoryStream();
            StreamWriter sw = new StreamWriter(ms);
            sw.Write(input);
            ms.WriteTo(File.Create(@"f:\textfile2.txt"));
            sw.Close();
            ms.Dispose();

            if (File.Exists(@"f:\textfile2.txt"))
            {
                StreamReader sr = new StreamReader(@"f:\textfile2.txt");
                Console.WriteLine(sr.ReadToEnd());
            }
        }
    }
}

It says that textfile2 is being used by another process
Hiren Soni16y ago
If you dont want Ioexception then use File.Exists() to check file is exists or not before you read from the file. And as per the result of File.Exists() perform your operation. If file exists, then read it otherwise break the operation.