title: In vb, how do I store textbox text in an arraylist, preserve it on button click, and then display the entire array on another button click
body: <p>I have a calculator with two textboxes. The user enters a number in each one, then presses a button to add, subtract, multiply, or divide the two numbers, with the results in a label. The user should click a save button, where the textbox.text is saved as an arraylist. Then the user should click the display button to display the text, but this has to happen up to ten times (ten saves). I can save it once, but can't figure out how to add more than one to the arraylist. Here is my code:</p>
  
  <pre><code>Public Sub btnStore_Click(sender As Object, e As EventArgs) Handles 
     btnStore_Click
      Session("myArray") = Input
      i = Convert.ToInt32(Session("increment"))
      Input.Insert(i, txtResults.Text)
  
      Session("myArray") = Input
      Session("increment") = Convert.ToInt32(Session("increment")) + 1
  End Sub
  
  Public Sub btnDisplay_Click(sender As Object, e As EventArgs) Handles  
   btnDisplay.Click
      output1.Text = Convert.ToString(Session("myArray"))
  
  
  
  End Sub
  </code></pre>