Mi a hiba a kódomban?

Akasztófa játék. Teljesen jól működik(most az összes szóból választ), de nekem az kéne, hogy tudjak kategóriát választani, és az alapján válasszon egy random szót. Van egy globális változó, a choice, aminek az értéke attól függ, hogy melyik kategóriának a gombját nyomta meg a játékos. Nem tudom, hogy miért nem működik a kódom.

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Windows.Forms;

using System.IO;

namespace Hangman

{

public partial class Form2 : Form

{

private Bitmap[] hangImages = { Hangman.Properties.Resources._1, Hangman.Properties.Resources._2, Hangman.Properties.Resources._3,

Hangman.Properties.Resources._4, Hangman.Properties.Resources._5, Hangman.Properties.Resources._6,

Hangman.Properties.Resources._7};

public int wrongGuesses = 0;

private string current = "";

private string copyCurrent = "";

static List<fileReading> read = new List<fileReading>();

static void reading()

{

StreamReader sr = new StreamReader("forras.csv");

string sor;

string[] temp;

sr.ReadLine();

while ((sor = sr.ReadLine()) != null)

{

temp = sor.Split(';');

fileReading file = new fileReading();

file.category = Convert.ToInt32(temp[0]);

file.number = Convert.ToInt32(temp[1]);

file.word = Convert.ToString(temp[2]);

read.Add(file);

}

sr.Close();

}

private string[] words;

public Form2()

{

InitializeComponent();

}

private void loadwords()

{

char[] delimiterChars = { ';' };

string[] readText = File.ReadAllLines("forras.csv");

words = new string[readText.Length];

int index = 0;

foreach (string s in readText)

{

string[] line = s.Split(delimiterChars);

if (Global.choice.Equals(1))

{

words[index++] = line[2];

}

if (Global.choice.Equals(2))

{

words[index++] = line[2];

}

if (Global.choice.Equals(3))

{

words[index++] = line[2];

}

if (Global.choice.Equals(4))

{

words[index++] = line[2];

}

}

}

private void setupWordChoice()

{

wrongGuesses = 0;

hangImage.Image = hangImages[wrongGuesses];

int guessIndex = (new Random()).Next(words.Length);

current = words[guessIndex];

copyCurrent = "";

for (int index=0; index<current.Length;index++ )

{

copyCurrent += "_";

}

displayCopy();

}

private void displayCopy()

{

lblShowWord.Text = "";

for (int index = 0; index < copyCurrent.Length; index++)

{

lblShowWord.Text += copyCurrent.Substring(index, 1);

lblShowWord.Text += " ";

}

}

private void updateCopy(char guess)

{

}

private void Form2_Load(object sender, EventArgs e)

{

loadwords();

setupWordChoice();

}

private void guessClick(object sender, EventArgs e)

{

Button choice = sender as Button;

choice.Enabled = false;

if (current.Contains(choice.Text))

{

char[] temp = copyCurrent.ToCharArray();

char[] find = current.ToCharArray();

char guessChar = choice.Text.ElementAt(0);

for (int index = 0; index < find.Length; index++)

{

if (find[index] == guessChar)

{

temp[index] = guessChar;

}

}

copyCurrent = new string(temp);

displayCopy();

}

else

{

wrongGuesses++;

}

if (wrongGuesses < 7)

{

hangImage.Image = hangImages[wrongGuesses];

}

else

{

lblResult.Text = "You Lose!";

}

if (copyCurrent.Equals(current))

{

lblResult.Text = "You Win!";

}

}

private void Menu_Click(object sender, EventArgs e)

{

lblResult.Text = "";

this.Hide();

Form1 menu = new Form1();

lblResult.Text = "";

menu.ShowDialog();

this.Dispose(false);

}

}

class fileReading

{

public int category;

public int number;

public string word;

}

}