streamreader issue with using a textbox

Question

I'm new to C# and writing this application that displays a message if the given name in the TextBox is in the popular list file. My book gives very little help to fix this, my error is the inputfile of if(boy.Contains(boyinputFile)) same for the girl where it says something about:

cannot convert to string.

private void checkName_Click(object sender, EventArgs e)
{
      string boy;
      string girl;
      girl = girlBox.Text;
      boy = boyBox.Text;
      StreamReader boyinputFile;
      StreamReader girlinputFile;
      boyinputFile = File.OpenText("BoyNames.txt");
      girlinputFile = File.OpenText("GirlNames.txt");

      while (!boyinputFile.EndOfStream)
      {
            if (boyBox.Text.Contains(boyinputFile))
            {
                 MessageBox.Show("Yes, your name is popular!");    
            }                       
      }

      while (!girlinputFile.EndOfStream)
      {
            if (girl.Contains(girlinputFile))
            {
                    MessageBox.Show("Yes, your name is popular!");
            }
            else
            {
                    MessageBox.Show("Sorry, couldn't find your name.");
            }
      }

      boyinputFile.Close();
      girlinputFile.Close();   
}

Have a look at http://stackoverflow.com/questions/6183809/using-streamreader-to-check-if-a-file-contains-a-string. It should give you inspiration on how to fix your coding error. — WhiteViking, Sep 13 '15 at 17:31
I see you're new to SO. If any of the answers has solved your question please consider [accepting it](http://meta.stackexchange.com/q/5234/179419) by clicking the check-mark. This indicates to the wider community that you've found a solution. — Salah Akbari, Sep 14 '15 at 19:34

Salah Akbari · Answer 1 · 2015-09-27T11:00:26.840

1

Try this:

string boy = boyBox.Text;

using (StreamReader sr = new StreamReader("D:\\BoyNames.txt"))
{
      string boyinputFile = sr.ReadToEnd();

      if (boyinputFil.Contains(boy))
      {
           MessageBox.Show("Yes, your name is popular!");
      }
      else
      {
           MessageBox.Show("Sorry, couldn't find your name.");
      }
}

edited Sep 27 '15 at 11:00

answered Sep 13 '15 at 16:58

Salah Akbari

39,330
10
79
109

score 1 · Answer 2 · edited May 23 '17 at 12:30

You need to convert your stream to a string. This is where you are getting your error:

cannot convert to string

string girl_file = streamReader.ReadToEnd();

You then need to see if the selected name is within the string file. You need to reverse your check. You are checking to see if the textbox contains the file.

if (girl_file.Contains(girl))
{
            MessageBox.Show("Yes, your name is popular!");
}

Also have a look at this question How do I convert StreamReader to a string?

score 1 · Answer 3 · answered Sep 14 '15 at 09:32

1

I want to give you better code than the existing answers show you.

var lines = File.ReadAllLines("...");
var isMatch = lines.Contains(name);

It really can be that simple.

answered Sep 14 '15 at 09:32

usr

168,620
35
240
369

score 0 · Answer 4 · edited Nov 24 '15 at 00:02

0

Replace this line

if (boyBox.Text.Contains(boyinputFile))

with

if (boyBox.Text.Contains(boyinputFile.ToString())).

edited Nov 24 '15 at 00:02

answered Sep 13 '15 at 16:55

Leskyam

19
4

streamreader issue with using a textbox

4 Answers4