Copy TextBox Content To Another while Typing

For this, I am using Two Textboxes named txtpermanentadd and txtpresentadd. Screenshot given below.

To make textbox for typing  address, change multiline property of textbox to True.

Write the below code in to the TextChanged event of txtpermanantadd.

Private Sub txtPermanantadd_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles txtPermanantadd.TextChanged

        txtPresentadd.Text = txtPermanantadd.Text

    End Sub