C#

public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            string s1 = this.richTextBox1.Text;
            sample o1 = new sample();
            o1.sobject = s1;   
        }

    }
    public class sample
    {
        public string sobject;
       
    }