A very crappy example of auto-sizing columns for ComponentOne FlexGrid.

flexgridautosize.cs

    public MainWindow()
    {
      InitializeComponent();
      Loaded += MainWindow_Loaded;
    }

    void MainWindow_Loaded(object sender, RoutedEventArgs e)
    {
      List<string> items = new List<string>();
      var b1 = "some text";
      var b2 = "some text is long";
      var b3 = "some text is longer ";
      var b4 = "some text is much longer";
      var b5 = "some text is so long you won't read this";

      Binding bind1 = new Binding { Source = b1 } ;
      Binding bind2 = new Binding { Source = b2 } ;
      Binding bind3 = new Binding { Source = b3 } ;
      Binding bind4 = new Binding { Source = b4 } ;
      Binding bind5 = new Binding { Source = b5 } ;

      items.Add(b1);
      items.Add(b2);
      items.Add(b3);
      items.Add(b4);
      items.Add(b5);

      flexGrid.ItemsSource = items;
      flexGrid.Columns.Add(new Column { Header = "short col", Width = GridLength.Auto, Binding = bind1 });
      flexGrid.Columns.Add(new Column { Header = "longer col", Width = GridLength.Auto, Binding = bind2 });
      flexGrid.Columns.Add(new Column { Header = "really long col", Width = GridLength.Auto, Binding = bind3 });
      flexGrid.Columns.Add(new Column { Header = "super duper long col", Width = GridLength.Auto, Binding = bind4 });
      flexGrid.Columns.Add(new Column { Header = "why is this col so long?", Width = GridLength.Auto, Binding = bind5 });

      flexGrid.AutoSizeColumns(0, 4, 5);
    }