DevExpress Xaf入门——关于多对多关系的配置（DC模式）

  <connectionStrings>
    <add name="EasyTestConnectionString" connectionString="Integrated Security=SSPI;Pooling=false;Data Source=.\SQLEXPRESS;Initial Catalog=Solution2EasyTest" />
    <add name="ConnectionString" connectionString="Data Source=GUANBAOPC\SQLEXPRESS;Initial Catalog=Solution2DB;Persist Security Info=true;User ID=sa;Password=123" />
  </connectionStrings>

using System;
using System.Linq;
using System.Text;
using System.ComponentModel;
using DevExpress.ExpressApp;
using DevExpress.ExpressApp.DC;
using DevExpress.Data.Filtering;
using DevExpress.Persistent.Base;
using System.Collections.Generic;
using DevExpress.ExpressApp.Model;
using DevExpress.Persistent.Validation;

namespace Solution2.Module.BusinessObjects
{
    [DomainComponent]
    [DefaultClassOptions]
    [XafDisplayName("学生")]
    public interface Student
    {
        [XafDisplayName("学生姓名")]
        string StudentName { get; set; }

        [XafDisplayName("学号")]
        string StudentCode { get; set; }

        [XafDisplayName("课程")]
        IList<Course> Courses { get; }
    }
}

using System;
using System.Linq;
using System.Text;
using System.ComponentModel;
using DevExpress.ExpressApp;
using DevExpress.ExpressApp.DC;
using DevExpress.Data.Filtering;
using DevExpress.Persistent.Base;
using System.Collections.Generic;
using DevExpress.ExpressApp.Model;
using DevExpress.Persistent.Validation;

namespace Solution2.Module.BusinessObjects
{
    [DomainComponent]
    [DefaultClassOptions]
    [XafDisplayName("课程")]
    public interface Course
    {
        [XafDisplayName("课程名称")]
        string CourseName { get; set; }

        [XafDisplayName("课程编号")]
        string CourseCode { get; set; }

        [XafDisplayName("学生")]
        IList<Student> Students { get; }
    }
}

using System;
using System.Text;
using System.Linq;
using DevExpress.ExpressApp;

using System.ComponentModel;
using DevExpress.ExpressApp.DC;
using System.Collections.Generic;
using DevExpress.Persistent.Base;
using DevExpress.ExpressApp.Model;
using DevExpress.ExpressApp.Actions;
using DevExpress.ExpressApp.Editors;
using DevExpress.ExpressApp.Updating;
using DevExpress.ExpressApp.Model.Core;
using DevExpress.ExpressApp.Model.DomainLogics;
using DevExpress.ExpressApp.Model.NodeGenerators;
using Solution2.Module.BusinessObjects;

namespace Solution2.Module
{
    public sealed partial class Solution2Module : ModuleBase
    {
        public Solution2Module()
        {
            InitializeComponent();
        }
        public override IEnumerable<ModuleUpdater> GetModuleUpdaters(IObjectSpace objectSpace, Version versionFromDB)
        {
            ModuleUpdater updater = new DatabaseUpdate.Updater(objectSpace, versionFromDB);
            return new ModuleUpdater[] { updater };
        }
        public override void Setup(XafApplication application)
        {
            base.Setup(application);
            XafTypesInfo.Instance.RegisterEntity("Student", typeof(Student));
            XafTypesInfo.Instance.RegisterEntity("Course", typeof(Course));
        }
    }
}