CODEWITHSUNDEEP
c#authenticationtext-files
Necula Horaţiu
Necula Horaţiu

Reputation: 31

Geting data from a TextFile in C#

Hello guys I want to make a Log In Form with dates from a text file and here's my code and I don't know why it doesn't work and also it doesn't show me any errors :\ 

    {
        string UserToSearch = textBox10.Text;
        string PasswordToSearch = textBox11.Text;

        string[] readText = File.ReadAllLines("LogIn.txt");
        try
        {
            for (int i = 0; i < readText.Length; i++)
            {
                if (readText[i] == UserToSearch && readText[i + 1] == PasswordToSearch)
                {
                    MessageBox.Show("You found it");
                }
            }
        }
        catch (Exception ex)
        {
            MessageBox.Show(ex.ToString());
        }
    }

and in my LogIn.txt file is Horatiu pas1 and Ana pas2

any kind of help would be great. Thank you ^^

Upvotes: 0

Views: 68

Answers (1)

Dmitrii Bychenko
Dmitrii Bychenko

Reputation: 186813

It seems that you have a format problem: if actual data looks like 

  Horatiu pas1 
  Ana pas2
  ...
  MyLogin MyPassword
  User 123
  Me MyTopSecretPassword
  Scott Tiger

(please, notice that both login and password are in the same line) you have to Split each line. Another suggestion is to use Linq instead of loop:

  var found = File
    .ReadLines("LogIn.txt")
    .Select(line => line.Split(' '))
    .Any(items => items[0] == UserToSearch && items[1] == PasswordToSearch);

  if (found)
    MessageBox.Show("You found it");

Upvotes: 1

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