title: C# - How to get/set ListViewItem or ListViewItem.ListViewSubItem by key?
body: <p>I have a listview with several items that are created dynamically, each has two subitems that are quantity and code after a query to the database should update the quantity, but to make the code more readable I would like to access subitems by the key and not by its index, something like:</p>
  
  <p>subitem["quantity"]</p>
  
  <p>but I don't see how to assign the key though collections.</p>