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This code accompanies a walk-thru tutorial, Extending C# Listview with Collapsible Groups (Part I) in which I build out a basic extenstion of the common Windows Forms ListView control. In the article I discuss:

  • Adding expandable/collapsible groups with header columns to the ListView
  • The use of Inner Classes to extend and manage the child collection of ListViewItem Groups
  • A few basic WinApi calls to menage vertical and horizonal scrollbars within the nested lists