关于DevExPress 中GridLookUpEdit显示的问题

Question

devexpress搜索数据

Answer 1

只显示一个列
   DataTable的数据源是Id，Name，PYCode，我根据PYCode和Name进行筛选
   如果我将DataTable转换成IList数组，就没有问题，但是关键是绑定的数据源是DataTable的，没办法

Answer 2

把DataTable 转成List集合；
参见：
 /// <summary>
        /// 获得集合实体
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="dt"></param>
        /// <returns></returns>
        public static List<T> EntityList<T>(DataTable dt)
        {
            if (dt == null || dt.Rows.Count == 0)
            {
                return null;
            }
            List<T> list = new List<T>();
            T entity = default(T);
            foreach (DataRow dr in dt.Rows)
            {
                entity = Activator.CreateInstance<T>();
                PropertyInfo[] pis = entity.GetType().GetProperties();
                foreach (PropertyInfo pi in pis)
                {
                    if (dt.Columns.Contains(pi.Name))
                    {
                        if (!pi.CanWrite)
                        {
                            continue;
                        }
                        if (dr[pi.Name] != DBNull.Value)
                        {
                            Type t = pi.PropertyType;
                            if (t.FullName == "System.Guid")
                            {
                                pi.SetValue(entity, Guid.Parse(dr[pi.Name].ToString()), null);
                            }
                            else
                            {
                                pi.SetValue(entity, dr[pi.Name], null);
                            }                        }
                    }
                }
                list.Add(entity);
            }
            return list;
        }

Answer 3

使用Datatable 绑定，你过滤什么列，就应该把那个列显示出来；

Answer 4

把DataTable 转成List集合；
参见：
 /// <summary>
        /// 获得集合实体
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="dt"></param>
        /// <returns></returns>
        public static List<T> EntityList<T>(DataTable dt)
        {
            if (dt == null || dt.Rows.Count == 0)
            {
                return null;
            }
            List<T> list = new List<T>();
            T entity = default(T);
            foreach (DataRow dr in dt.Rows)
            {
                entity = Activator.CreateInstance<T>();
                PropertyInfo[] pis = entity.GetType().GetProperties();
                foreach (PropertyInfo pi in pis)
                {
                    if (dt.Columns.Contains(pi.Name))
                    {
                        if (!pi.CanWrite)
                        {
                            continue;
                        }
                        if (dr[pi.Name] != DBNull.Value)
                        {
                            Type t = pi.PropertyType;
                            if (t.FullName == "System.Guid")
                            {
                                pi.SetValue(entity, Guid.Parse(dr[pi.Name].ToString()), null);
                            }
                            else
                            {
                                pi.SetValue(entity, dr[pi.Name], null);
                            }                        }
                    }
                }
                list.Add(entity);
            }
            return list;
        }

这个我知道，没什么用。使用Datatable 绑定，你过滤什么列，就应该把那个列显示出来；
我已经试过了，有用的话就不用求助了