XAF 如何实现两个ListView联动

例如：有部门和员工两个ListView

1.      首先用模型编辑器添加一个DashboardView1

2.      然后再给DashboardView1添加两个Item：Department_ListView 和 Employee_ListView;

3.      代码

using System;

using DevExpress.ExpressApp;
using DevExpress.ExpressApp.Editors;
using System.Collections;
using DevExpress.Data.Filtering;

namespace EasyTestTool.Module
{
    public partial class EmployeesDashboardInteractionController : ViewController<DashboardView>
    {
        public EmployeesDashboardInteractionController()
        {
            InitializeComponent();
            RegisterActions(components);
        }

        private const string TargetDashboardId = "DashboardView1";
        private const string EmployeeCriteriaId = "SelectedDepartmentsCriteria";


        private ListView employeeListView;
        private ListView departmentListView;

        protected override void OnActivated()
        {
            base.OnActivated();

            if (View.Id == TargetDashboardId)
            {
                foreach (DashboardViewItem item in View.GetItems<DashboardViewItem>())
                {
                    item.ControlCreated += item_ControlCreated;
                }
            }
        }

        void item_ControlCreated(object sender, EventArgs e)
        {
            DashboardViewItem item = ((DashboardViewItem)sender);

            if (item.Frame.View.Id == "Department_ListView")
            {
                departmentListView = (ListView)item.Frame.View;
                departmentListView.SelectionChanged += departmentListView_SelectionChanged;
            }

            if (item.Frame.View.Id == "Employee_ListView")
            {
                employeeListView = (ListView)item.Frame.View;
            }
        }

        void departmentListView_SelectionChanged(object sender, EventArgs e)
        {
            ArrayList keys = new ArrayList();
            object selectObject = null;
            foreach (object selectedObejct in ((ListView)sender).SelectedObjects)
            {
                if (selectedObejct != null)
                    keys.Add(ObjectSpace.GetKeyValue(selectedObejct));
            }

            FilterEmployeeListView(new InOperator("Department", keys));
       }
        
         

        private void FilterEmployeeListView(CriteriaOperator criteria)
        {
            employeeListView.CollectionSource.Criteria[EmployeeCriteriaId] = criteria;
        }

        protected override void OnDeactivated()
        {
            base.OnDeactivated();

            if (View.Id == TargetDashboardId)
            {
                foreach (DashboardViewItem item in View.GetItems<DashboardViewItem>())
                {
                    item.ControlCreated -= item_ControlCreated;
                }

                if(departmentListView != null)
                {
                    departmentListView.SelectionChanged -= departmentListView_SelectionChanged;
                }
            }


        }
    }
}