UP V2

using System;
    using System.Collections.Generic;
    using System.Linq;
    using System.ComponentModel;
    using DevExpress.ExpressApp;
    using DevExpress.ExpressApp.Win.Editors;
    using DevExpress.ExpressApp.Model;
    using DevExpress.XtraEditors;
    using System.Reflection;
    using DevExpress.XtraEditors.Controls;

    public class WinCustomDataSourceLookupEditor : WinPropertyEditor
    {
        private string dataSourceProperty = string.Empty;
        public WinCustomDataSourceLookupEditor(Type objectType, IModelMemberViewItem info)
            : base(objectType, info)
        {
            this.ControlBindingProperty = "EditValue";
            dataSourceProperty = info.DataSourceProperty;
        }

        protected override object CreateControlCore()
        {
            DevExpress.XtraEditors.LookUpEdit combo = CreateControl();
            combo.Properties.DisplayMember = "Key";
            combo.Properties.ValueMember = "Value";
            LookUpColumnInfo luci1 = new LookUpColumnInfo("Key","名稱");
            LookUpColumnInfo luci2 = new LookUpColumnInfo("Value","ID");
            combo.Properties.Columns.Add(luci1);
            combo.Properties.Columns.Add(luci2);
            combo.Properties.QueryPopUp += combo_QueryPopup;

            return combo;
        }

        protected override void Dispose(bool disposing)
        {
            LookUpEdit combo = this.Control as LookUpEdit;
            if (combo != null)
            {
                combo.Properties.QueryPopUp -= combo_QueryPopup;
            }
            base.Dispose(disposing);
        }

        protected override void OnControlCreated()
        {
            UpdateComboValues();
            base.OnControlCreated();
        }

        private DevExpress.XtraEditors.LookUpEdit CreateControl()
        {

            LookUpEdit combo = new LookUpEdit();
            combo.Properties.DisplayMember = "Key";
            combo.Properties.ValueMember = "Value";
            combo.Properties.DropDownRows = 10;
            //combo.Properties.TextEditStyle = this.AllowEdit.ResultValue ? TextEditStyles.Standard : TextEditStyles.DisableTextEditor;

            // Do any more combo setups here
            return combo;
        }

        private void UpdateComboValues()
        {
            if (this.CurrentObject != null)
            {
                LookUpEdit combo = (LookUpEdit)this.Control;

                try
                {
                    Type t = this.CurrentObject.GetType();
                    object datasource = null;
                    ////string[] values = (string[])((XPCustomObject)this.CurrentObject).GetMemberValue(this.dataSourceProperty);
                    PropertyInfo fi = t.GetProperty(this.dataSourceProperty);
                    if(fi != null )
                    {
                         datasource = fi.GetValue(this.CurrentObject, null);// fi.GetValue(this.CurrentObject);
                         if (datasource != null)
                         {
                             combo.Properties.DataSource = datasource;
                         }
                    }
                }
                catch (Exception exception1)
                {
                    Exception ex = exception1;
                    throw new UserFriendlyException(ex);
                }
            }
        }

        private void combo_QueryPopup(object sender, CancelEventArgs e)
        {
            UpdateComboValues();
        }

    }