using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Diagnostics;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using WMS.Attirubte;
 
using WMS.Common;
using WMS.Model.Base;
using System.Data;
using DevExpress.XtraEditors;

namespace WMS.Ctrl
{
    public partial class LookUpEditSystem : DevExpress.XtraEditors.LookUpEdit
    {

        /// <summary>
        /// 定义一个委托事件
        /// </summary>
       //public delegate void ctlLoad();
       //public event ctlLoad load;
        public LookUpEditSystem()
        {
           InitializeComponent();
            this.DataBindings.CollectionChanged += new CollectionChangeEventHandler(DataBindings_CollectionChanged);
     
          //  this.load += new ctlLoad(LookUpEditSystem_load);
        }


        //public void LookUpEditSystem_load()
        //{

        //    LoadData();
        //}

        void DataBindings_CollectionChanged(object sender, CollectionChangeEventArgs e)
        {
         
        }
    
        /// <summary>
        /// 初始化控件加载数据绑定
        /// </summary>
        public void LoadData()
        {
           
            if (this.DataBindings.Count > 0)
            {
 
                if ((this.DataBindings[0].DataSource as BindingSource).DataSource == null)
                {
                    return;
                }
              
                string modelClass = (this.DataBindings[0].DataSource as BindingSource).DataSource.ToString();

                Type classType = Type.GetType(modelClass);
                /// 
               if (classType == null)
               {
                   string dllPath = System.IO.Path.GetDirectoryName(System.Reflection.Assembly.GetExecutingAssembly().GetModules()[0].FullyQualifiedName);
                   classType = System.Reflection.Assembly.LoadFile(dllPath + "\\WMS.Model.dll").GetType(modelClass);
                   if (classType == null)
                   {
                       return;
                   }
               }
              string member= this.DataBindings[0].BindingMemberInfo.BindingMember;
              object[] TypeobjType = classType.GetProperty(member).GetCustomAttributes(typeof(TableClmAttribute), false);
               if (TypeobjType.Length == 0)
               {
                   return;
               }
              object[] disPlay =  classType.GetProperty(member).GetCustomAttributes(typeof(DisplayNameAttribute), false);
               if (disPlay.Length == 0)
               {
                   return;
               }
               string captionName= (disPlay[0] as DisplayNameAttribute).DisplayName;
                ///取关联的数据库
               string tableName=(TypeobjType[0] as TableClmAttribute).ClmJoinTable;
               string clmValue = (TypeobjType[0] as TableClmAttribute).JoinTableClm;
               string clmDis = (TypeobjType[0] as TableClmAttribute).JoinTableClmName;
               string clmWhere = (TypeobjType[0] as TableClmAttribute).JoinTableWhere;
               string clmClassName = (TypeobjType[0] as TableClmAttribute).ClassName;
               if (Properties.Columns.Count <= 0)
               {
                   Properties.Columns.Add(new DevExpress.XtraEditors.Controls.LookUpColumnInfo(clmDis, captionName));
               }
               if (string.IsNullOrEmpty(Properties.ValueMember))
               {
                   this.Properties.ValueMember = clmValue;
               }
               if (string.IsNullOrEmpty(Properties.DisplayMember))
               {
                   this.Properties.DisplayMember = clmDis;
               }
               if (Properties.DataSource != null)
               {
                   Properties.DataSource = null;
               }
               if (Properties.DataSource == null )
               {
                    DataTable table = WMS.Business.IBussFactory<WMS.Business.Common.BussCommon>.Instance().GetCustomCtrlData(tableName, clmValue, clmDis, clmWhere, clmClassName);
                    if (table != null)
                    {
                        Properties.DataSource = table;
                    }
                }
               
            }
        }
    }


}