DataTable類型對象轉換為List集合

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上載者:User
namespace ChatRoom.Services.Utils{    public static class ConvertUtils    {        /// <summary>        /// 提供將DataTable類型對象轉換為List集合        /// </summary>        /// <param name="table"></param>        /// <returns></returns>        public static List<T> ConvertToList<T>(DataTable table) where T : new()        {            //置為垃圾對象            List<T> list = null;            if (table != null)            {                DataColumnCollection columns = table.Columns;                int columnCount = columns.Count;                T type = new T();                Type columnType = type.GetType();                PropertyInfo[] properties = columnType.GetProperties();                if (properties.Length == columnCount)                {                    list = new List<T>();                    foreach (DataRow currentRow in table.Rows)                    {                        for (int i = 0; i < columnCount; i++)                        {                            for (int j = 0; j < properties.Length; j++)                            {                                if (columns[i].ColumnName == properties[j].Name)                                {                                    properties[j].SetValue(type, currentRow[i], null);                                }                            }                        }                        list.Add(type);                        type = new T();                    }                }                else                {                    list = null;                }            }            else            {                throw new ArgumentNullException("參數不可為空");            }            return list;        }    }}
不知效率效能如何啊??

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