在WinForms中使用MVP时如何处置Presenter？

Question

使用MVP的UserControl的简化示例：

界面：

namespace AuditTest.View
{
    public interface IEditFindingView
    {
        string ITxtFindingNumber_Text { get; set; }

        Image ILblFindingDate_Image { get; set; }

        DateTime IDtpFindingDate_Value { get; set; }
    }
}

USERCONTROL类别：

namespace AuditTest.View
{
    public partial class EditFindingView : UserControl, IEditFindingView
    {

        public string ITxtFindingNumber_Text
        {
            get { return TxtFindingNumber.Text; }
            set { TxtFindingNumber.Text = value; }
        }

        public Image ILblFindingDate_Image
        {
            get { return LblFindingDate.Image; }
            set { LblFindingDate.Image = value; }
        }

        public DateTime IDtpFindingDate_Value
        {
            get { return DtpFindingDate.Value; }
            set { DtpFindingDate.Value = value; }
        }

        public EditFindingView(int index)
        {
            InitializeComponent();
            new EditFindingPres(this, index);
        }
    }
}

PRESENTER CLASS：

namespace AuditTest.View
{
    public class EditFindingPres
    {
        private IEditFindingView View = null;
        private AuditFindingMod Model = null;
        private int FindingIndex = 0;

        public EditFindingPres(IEditFindingView view, int index) : this(view, index, new AuditFindingMod())
        {
        }

        public EditFindingPres(IEditFindingView view, int index, AuditFindingMod model)
        {
            try
            {
                if (view != null)
                {
                    View = view;
                    Model = model;
                    FindingIndex = index;
                }
                else
                {
                    throw new ArgumentNullException("IEditFindingView");
                }
            }
            catch (Exception ex)
            {
                new ErrorMod().LogError(System.Reflection.MethodBase.GetCurrentMethod(), ex, true);
            }
        }
    }
}

此UserControl是在使用系统时经常创建和处理的。我注意到，主持人没有被处分。处置完UserControl后，我该怎么做才能处置Presenter？