C# GUI application that stores an array and displays the highest and lowest numbers by clicking a button
<p><strong>Background:</strong><br>This is updated from 13 hours ago as I have been researching and experimenting with this for a few. I'm new to this programming arena so I'll be short, I'm teaching myself C#<br> <br>And I'm trying to learn how to have integers from a user's input into a textbox get calculated from a button1_Click to appear on the form. Yes, this is a class assignment but I think I have a good handle on some of this but not all of it; that's why I'm turning to you guys. </p>

<p><strong>Problem:</strong> <br>
I'm using Microsoft Visual Studio 2010 in C# language, Windows Forms Application and I need to create a GUI that allows a user to enter in 10 integer values that will be stored in an array called from a button_Click object. These values will display the highest and lowest values that the user inputted. The only thing is that the array must be declared above the Click() method.</p>

<p>This is what I have come up with so far:</p>

<pre><code>namespace SmallAndLargeGUI
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        public void inputText_TextChanged(object sender, EventArgs e)
        {
            this.Text = inputText.Text;
        }

        public void submitButton_Click(object sender, EventArgs e)
        {
            int userValue; 
            if(int.TryParse(inputText.Text, out userValue)) 
        { 

        } 
        else 
        {
            MessageBox.Show("Please enter a valid integer into the text box.");
        } 


            int x;
            x = Convert.x.ToString();
            int squaredResults = squared(x);
            int cubedResults = cubed(x); squared(x);
            squaredLabel.Text = x.ToString() + " squared is " + squaredResults.ToString();
            cubedLabel.Text = x.ToString() + " cubed is " + cubedResults.ToString();
        }
        public static int squared(int x)
        {
            x = x * x;
            return x;
        }
        public static int cubed(int x)
        {
            x = x * squared(x);
            return x;    
        }
    }
}
</code></pre>

<p>Now I can't run this program because line 38 shows an error message of: 'System.Convert' does not contain a definition for 'x' Also I still have to have an array that holds 10 integers from a textbox and is declared above the Click() method. Please guys, any help for me? This was due yesterday.</p>
