DevExpress gridcontrol Master-Detail绑定到对象类型

数据库:C_ProductPlan ,C_ProductPlanItem
DTO定义:(实现每个计划条目-Master,对应多个ProcessInfo-Detail)

    [DataContract]
    [Serializable]
    public class PlanInfo:C_ProductPlan
    {
        public PlanInfo()
        {
            Items = new List<ProducePlanItem>();
        }

        [DataMember]
        public List<ProducePlanItem> Items { get; set; }
    }

    [DataContract]
    [Serializable]
    public class ProducePlanItem :C_ProductPlanItem
    {

        public ProducePlanItem()
        {
            ProcessConfig = new List<ProcessInfo>();
        }

        [DataMember]
        public List<ProcessInfo> ProcessConfig { get; set; }

    }

    [Serializable]
    public class ProcessInfo
    {
        public String Name{get;set;}
        public int Order{get;set;}
        public bool? IsChecked{get;set;}
        public String Memo{get;set;}
    }

UI定义:
index-是行记录，relationIndex是对应的子集合序号（可以有多个子集合），IsEmpty=true时主列表前面的"+"灰色
getCount 返回最大的子集合数

   public class ProducePlanItems : ArrayList, IRelationList
    {
        public ProducePlanItems()
        {

        }

        #region IRelationList 成员

        public System.Collections.IList GetDetailList(int index, int relationIndex)
        {
            return this[index].ProcessConfig;
        }

        public string GetRelationName(int index, int relationIndex)
        {

            return "ProcessConfig";
        }

        public bool IsMasterRowEmpty(int index, int relationIndex)
        {
            return false;
        }

        public int RelationCount
        {
            get { return ; }
        }

        #endregion

        public virtual new ProducePlanItem this[int index]
        {
            get { return base[index] as ProducePlanItem; }
        }
    }

需要引用Dexexpress.Data.dll,

1.gridview-MainView 绑定到UI中定义的ProducePlanItems.

2.添加一个level1 将level1重命名称ProcessConfig（对应上面IRelationList.GetRelationName的返回
 
 3.level1 添加 gridview2 ，需要手动设置gridview的列，可以设置gridview2的ViewCaption

4.获取数据后将items转化成producePlanItems,并绑定到UI