CODEWITHSUNDEEP
c#streamreaderstreamwriter
Hammies
Hammies

Reputation: 13

C# StreamWriter won't work after calling StreamReader

I'm trying to make betting program in C#, storing the user's data in a txt file. I have no problem reading the data from it. However, I can't manage to overwrite it.

From what I've tested, if I call the StreamWriter part alone the overwriting happens just fine. When I put the same code after the StreamReader part, the code will reach the Console.WriteLine("reached"); line and ignore everything after it (username is never written in the console). No error is detected and compilation won't stop either.

Here's the class code:

    class Dinero
    {
            private List<string> data;
            private string path = @"C:\Users\yy\Documents\Visual Studio 2015\Projects\ErikaBot\ErikaBot\img\bank_data.txt";

           ...
           some other methods here
           ...

            public void thing(string username, int money)
            {
                FileStream fs = new FileStream(path, FileMode.OpenOrCreate, FileAccess.ReadWrite, FileShare.None);
                data = new List<string>();
                using (StreamReader sr = new StreamReader(fs))
                {
                    string a = sr.ReadLine();
                    for (int i = 0; a != null; i++)
                    {
                        if (a != username)
                        {
                            data.Add(a);
                        }
                        else i++;
                        a = sr.ReadLine();
                    }
                }

                string b = Convert.ToString(money);
                Console.WriteLine("reached");
                using (StreamWriter tw = new StreamWriter(fs))
                {
                    Console.WriteLine(username);
                    if (data != null)
                    {
                        for (int i = 0; i < data.Count; i++)
                        {
                            tw.WriteLine(data.ElementAt(i));
                        }
                    }
                    string money2 = Convert.ToString(money);
                    tw.WriteLine(username);
                    tw.WriteLine(money2);
                }
            }
        }

Upvotes: 1

Views: 499

Answers (1)

αNerd
αNerd

Reputation: 528

By disposing StreamReader you also dispose the FileStream. Either repeat the filestream initialisation before the using statement for StreamWriter or put the latter in the using statement for StreamReader.

Upvotes: 1

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