public abstract class ResizePolicy 

public class GcResizeResizePolicyDemo : Form
{
    private Components.GcResize gcResize1;
    private ListView listView1;
    private IContainer components;

    public GcResizeResizePolicyDemo()
    {
        InitializeComponent();

        // Set the view to show details.
        listView1.View = View.Details;
        // Allow the user to edit item text.
        listView1.LabelEdit = true;
        // Allow the user to rearrange columns.
        listView1.AllowColumnReorder = true;
        // Display check boxes.
        listView1.CheckBoxes = true;
        // Select the item and subitems when selection is made.
        listView1.FullRowSelect = true;
        // Display grid lines.
        listView1.GridLines = true;
        // Sort the items in the list in ascending order.
        listView1.Sorting = SortOrder.Ascending;

        // Create three items and three sets of subitems for each item.
        ListViewItem item1 = new ListViewItem("item1", 0);
        // Place a check mark next to the item.
        item1.Checked = true;
        item1.SubItems.Add("1");
        item1.SubItems.Add("2");
        item1.SubItems.Add("3");
        ListViewItem item2 = new ListViewItem("item2", 1);
        item2.SubItems.Add("4");
        item2.SubItems.Add("5");
        item2.SubItems.Add("6");
        ListViewItem item3 = new ListViewItem("item3", 0);
        // Place a check mark next to the item.
        item3.Checked = true;
        item3.SubItems.Add("7");
        item3.SubItems.Add("8");
        item3.SubItems.Add("9");

        // Create columns for the items and subitems. // Width of -2 indicates auto-size.
        listView1.Columns.Add("Item Column", -2, HorizontalAlignment.Left);
        listView1.Columns.Add("Column 2", -2, HorizontalAlignment.Left);
        listView1.Columns.Add("Column 3", -2, HorizontalAlignment.Left);
        listView1.Columns.Add("Column 4", -2, HorizontalAlignment.Center);

        //Add the items to the ListView.
        listView1.Items.AddRange(new ListViewItem[] { item1, item2, item3 });
    }

    private void InitializeComponent()
    {
        this.components = new Container();
        MyListViewResizePolicy myListViewResizePolicy1 =
            new MyListViewResizePolicy();
        this.gcResize1 = new Components.GcResize(this.components);
        this.listView1 = new ListView();
        ((ISupportInitialize)(this.gcResize1)).BeginInit();
        this.SuspendLayout();
        // 
        // gcResize1
        // 
        this.gcResize1.ResizePolicies.Add(myListViewResizePolicy1);
        this.gcResize1.Target = this;
        // 
        // listView1
        // 
        this.listView1.CheckBoxes = true;
        this.listView1.Location = new Point(15, 26);
        this.listView1.Name = "listView1";
        this.listView1.Size = new Size(229, 185);
        this.listView1.TabIndex = 0;
        this.listView1.UseCompatibleStateImageBehavior = false;
        // 
        // GcResize
        // 
        this.ClientSize = new Size(284, 261);
        this.Controls.Add(this.listView1);
        this.Name = "GcResizeResizePolicyDemo";
        ((ISupportInitialize)(this.gcResize1)).EndInit();
        this.ResumeLayout(false);

    }

    [STAThread]
    public static void Main(string[] args)
    {
        Application.EnableVisualStyles();
        Application.SetCompatibleTextRenderingDefault(false);
        Application.Run(new GcResizeResizePolicyDemo());
    }
}

public class MyListViewResizePolicy : ResizePolicy
{
    public override bool CanResize(Control ctl)
    {
        return ctl is ListView;
    }

    public override Type TargetType
    {
        get { return typeof(ListView); }
    }

    public override void ResizeLayout(Control ctl, ResizeLayoutInfo infos)
    {
        var listView = ctl as ListView;

        listView.SuspendLayout();
        if (listView.Columns.Count > 0)
        {
            foreach (ColumnHeader column in listView.Columns)
            {
                column.Width = infos.ScaleX(column.Width);
            }
        }
        listView.ResumeLayout(true);
        base.ResizeLayout(ctl, infos);
    }
}