get value in textboxes from one richtextbox

string[] lines = myRichTextBox.Lines;
if (lines.Length >= 5)
    {
    myTextBoxForLineOne.Text = lines[0];
    myTextBoxForLineTwo.Text = lines[1];
    myTextBoxForLineThree.Text = lines[2];
    myTextBoxForLineFour.Text = lines[3];
    myTextBoxForLineFive.Text = lines[4];
    }