title: Adding array of strings and array of doubles in a combobox
body: <p>I need to add an array of strings to an array of doubles.</p>
  
  <pre><code>Public Class Form1
      Dim items() As String = {"Beef", "Chicken", "Lamb"}
      Dim itemcosts() As Double = {7, 4, 3}
  
      Private Sub Button1_Click(sender As Object, e As EventArgs) Handles btn_starttest.Click
          cmb_test.Items.AddRange(items + items)
      End Sub
  End Class
  </code></pre>
  
  <p>It returns an error that I cannot add two strings.</p>