public Window4()
 {
     InitializeComponent();
     mycontext=MakeDataSource();
     bv= new BindingListCollectionView(mycontext.DefaultView);
     myCanvas.DataContext = bv;
 }
        private MyDataSet.EmployeeDataTable MakeDataSource()
        {
            MyDataSet.EmployeeDataTable myTable = new MyDataSet.EmployeeDataTable();

            myTable.AddEmployeeRow("A12345","이순신","한려 수도 가까운 바다",false,DateTime.Parse("1500-09-07"));
            myTable.AddEmployeeRow("K43214", "강감찬", "평나도 강가 ", false, DateTime.Parse("1100-04-07"));
            myTable.AddEmployeeRow("J09537", "홍길동", "산속 어디 아름다운곳", true, DateTime.Parse("1407-02-23"));

            return myTable;
        }