How can I unmask password text box and mask it back to password?

Question

How can password textbox that set to :

password_txtBox.PasswordChar =\"*\"

to be unmasked ( from checkbox ) and then mask again
without

Answer 1

use this one

private void checkBox1_CheckedChanged(object sender, EventArgs e)
    {
        textBox2.PasswordChar = default(char);
    }