PrivateSub Button1_Click()Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click RichTextBox2.Text ="TEMPSTRING"& RichTextBox1.Text End Sub PrivateSub Button2_Click()Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click RichTextBox1.Text = RichTextBox2.Text.Substring(0, 10) RichTextBox3.Text = RichTextBox2.Text.Remove(0, 10) End Sub End Class