C# winform propertyGridControl细节的处理

Question

        RepositoryItemCheckEdit edit = new RepositoryItemCheckEdit();
        RepositoryItemDateEdit DateEdit = new RepositoryItemDateEdit();
        public ShowPropertyGridControl()
        {
            InitializeComponent();
        }
        private void ShowPropertyGridControl_Load(object sender, EventArgs e)
        {
            propertyGridControl1.RepositoryItems.Add(edit);
            propertyGridControl1.RepositoryItems.Add(DateEdit);
            propertyGridControl1.DefaultEditors.Add(typeof(bool), edit);
            propertyGridControl1.DefaultEditors.Add(typeof(DateTime), DateEdit);
            propertyGridControl1.SelectedObject = new MyClass();
        }
        class MyClass
        {
            [DisplayName("文本框")]
            public Boolean Property1
            {
                get;
                set;
            }
            [DisplayName("时间")]
            public DateTime Property2
            {
                get;
                set;
            }
        }哪位大侠知道怎么获得时间的值和checkbox里的值   如图，本来时间的2010-08-01  选中后时间改成2010-08-30
我要用RepositoryItemDateEdit这个属性获值，怎么得到选中后的时间.请赐教!