How do I write multiple text lines to a rich text box?

How do I write multiple text lines to a rich text box?

How do I write multiple text lines to a rich text box, such as:

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Line 1 xxxxxx Line 2 yyyyyy Line 3 mmmmmm and so on?

Also, I notice that the rich text box has a +Lines: String[]Array. Can this be used to write text from variables?
Here are two button handlers that show both ways and produce the same text in the RichTextBox control: 

  Private Sub Button1_Click(ByVal sender As System.Object, _
                ByVal e As System.EventArgs) _
                Handles Button1.Click
    RichTextBox1.Text = "Line 1 xxxxxx" + vbCrLf
    RichTextBox1.Text += "Line 2 yyyyyy" + vbCrLf
    RichTextBox1.Text += "Line 3 mmmmmm and so on?" + vbCrLf
  End Sub

  Private Sub Button2_Click(ByVal sender As System.Object, _
                ByVal e As System.EventArgs) _
                Handles Button2.Click
    Dim myLines(3) As String

    myLines(0) = "[using Lines] Line 1 xxxxxx"
    myLines(1) = "[using Lines] Line 2 yyyyyy"
    myLines(2) = "[using Lines] Line 3 mmmmmm and so on?"

    RichTextBox1.Lines = myLines
  End Sub

This was first published in June 2004

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