help c# baraye add kardane item ha va delet

mc maziar jun khyli donbalesh budam   
faqat yechiz dg mikham textbox ham beyneshun ertebat bashe , yani vaqti ro textbox1 click krdi text to textbox1 copy she to textbox2

mrc mamad jun

Code:

        private void textBox1_TextChanged(object sender, EventArgs e)
          {
            textBox1.Text = textBox2.Text; 
            }
         
           

Code:

private void textBox1_TextChanged(object sender, EventArgs e)
{
textBox2.Text = textBox1.Text;
}