C#

public Form1()
        {
            InitializeComponent();
        }

        private void tectbox_keypress(object sender, KeyPressEventArgs e)
        {
            if (e.KeyChar == (char)Keys.Return)
            {
                string enter = "<enter>";
                richTextBox1.Text += enter;
                richTextBox1.SelectionStart = richTextBox1.Text.Length - enter.Length;
                e.Handled = true;
            }
            else
            {
                listBox1.Text += e.KeyChar;
            }
        }

        private void listbox_keypress(object sender, KeyPressEventArgs e)
        {

        }</enter>

// catch key presses on the text box:
private void textBox_KeyPress(object sender, KeyPressEventArgs e)
{
    if (!e.KeyChar.Equals(Keys.Enter))
    {
        // update ListItem being shown();
    }
    else if (listBox.SelectedIndex != -1)
    {
        // update Rich Text From List
    }
    else
    {
        // update Rich Text From text
    }
}

// user clicks the list:
private void listBox_DoubleClick(object sender, EventArgs e)
{
    // update Rich Text From List
}

Umangj wrote:

heyyy pls help me...