泛型集合的运用--DataSet转换为泛型集合

  /// <summary>
    /// DataSet转换为泛型集合
    /// </summary>
    /// <typeparam name="T">泛型</typeparam>
    /// <param name="p_DataSet">DataSet</param>
    /// <param name="p_TableIndex">待转换数据表索引</param>
    /// <returns>泛型集合</returns>
    private static IList<T> DataSetToIList<T>(DataSet p_DataSet, int p_TableIndex)
    {
        if (p_DataSet == null || p_DataSet.Tables.Count < 0)
            return null;
        if (p_TableIndex > p_DataSet.Tables.Count - 1)
            return null;
        if (p_TableIndex < 0)
            p_TableIndex = 0;
        if (p_DataSet.Tables[p_TableIndex].Rows.Count <= 0)
            return null;

        DataTable p_Data = p_DataSet.Tables[p_TableIndex];
        // 返回值初始化
        IList<T> result = new List<T>();
        for (int j = 0; j < p_Data.Rows.Count; j++)
        {
            T _t = (T)Activator.CreateInstance(typeof(T));
            PropertyInfo[] propertys = _t.GetType().GetProperties();
            foreach (PropertyInfo pi in propertys)
            {
                for (int i = 0; i < p_Data.Columns.Count; i++)
                {
                    // 属性与字段名称一致的进行赋值
                    if (pi.Name.ToLower().Equals(p_Data.Columns[i].ColumnName.ToLower()))
                    {
                        // 数据库NULL值单独处理
                        if (p_Data.Rows[j][i] != DBNull.Value)
                        {
                            //if (p_Data.Rows[j][i] is byte[])
                            //{
                            //    byte[] bytes = (byte[])p_Data.Rows[j][i];
                            //    MemoryStream ms = new MemoryStream(bytes);
                            //    Image img = Image.FromStream(ms);
                            //    pi.SetValue(_t, img, null);
                            //    continue;
                            //}
                            pi.SetValue(_t, p_Data.Rows[j][i], null);
                        }
                        else
                            pi.SetValue(_t, null, null);
                        break;
                    }
                }
            }
            result.Add(_t);
        }
        return result;
    }