Este programa codifica cualquier palabra

public partial class Form1 : Form{

{
InitializeComponent();
}

{
}

{

textBox2.Text = cad.ToString();
radioButton1.Enabled =
}

{

radioButton1.Enabled =

{
cad1[i] =


cad1[i] = (
textBox3.Text = cad1.ToString();
}
}

{


{
cad1[i] =


cad1[i] = (
textBox4.Text = cad1.ToString();
}
}
}public Form1()private void Form1_Load(object sender, EventArgs e)private void radioButton1_CheckedChanged(object sender, EventArgs e)StringBuilder cad = new StringBuilder(textBox1.Text);true;private void radioButton2_CheckedChanged(object sender, EventArgs e)StringBuilder cad1 = new StringBuilder(textBox1.Text);true;for (int i = 0; i < cad1.Length; i++)Char.ToLower(cad1[i]);char cad2 = (char)(Convert.ToInt16(cad1[i]));if (cad2 > 94 && cad2 < 122)char)(Convert.ToInt32(cad1[i] + 1));private void radioButton3_CheckedChanged(object sender, EventArgs e)StringBuilder cad1 = new StringBuilder(textBox1.Text);for (int i = 0; i < cad1.Length; i++)Char.ToLower(cad1[i]);char cad2 = (char)(Convert.ToInt16(cad1[i]));if (cad2 > 94 && cad2 < 122)char)(Convert.ToInt32(cad1[i]));