PropertyGrid的list属性弹出对话框

Question

  public class People
        {
            List<Point> list;            public List<Point> List
            {
                get { return list; }
                set { list = value; }
            }
      } public Form1()
        {
            InitializeComponent();
            People p1 = new People();
            this.propertyGrid1.SelectedObject = p1;
        }此时，属性框中的List属性，有省略号…样式的按键，点击后弹出 具体的属性设置对话框，请问如何操作这个对话框？

Answer 1

public class People
{
    List<Point> list = new List<Point>();    [Editor(typeof(MyListEditor), typeof(UITypeEditor))]  //<--
    public List<Point> List
    {
        get { return list; }
        set { list = value; }
    }
}class MyListEditor : UITypeEditor
{
    public override UITypeEditorEditStyle GetEditStyle(ITypeDescriptorContext context)
    {
        return UITypeEditorEditStyle.Modal;
    }
    public override object EditValue(ITypeDescriptorContext context, IServiceProvider provider, object value)
    {
        IWindowsFormsEditorService service = provider.GetService(typeof(IWindowsFormsEditorService)) as IWindowsFormsEditorService;
        Form editForm = new Form() { Text = "To be implemented" };
        service.ShowDialog(editForm);
        return value;
    }
}