C# List轉DataTable

        /// <summary>
        /// 將List轉換為DataTable
        /// </summary>
        /// <param name="list">請求數據</param>
        /// <returns></returns>
        public static DataTable ListToDataTable<T>(List<T> list)
        {
            //創建一個名為"tableName"的空表
            DataTable dt = new DataTable("tableName");

            //創建傳入對象名稱的列
            foreach (var item in list.FirstOrDefault().GetType().GetProperties())
            {
                dt.Columns.Add(item.Name);
            }
            //循環存儲
            foreach (var item in list)
            {
                //新加行
                DataRow value = dt.NewRow();
                //根據DataTable中的值，進行對應的賦值
                foreach (DataColumn dtColumn in dt.Columns)
                {
                    int i = dt.Columns.IndexOf(dtColumn);
                    //基元元素，直接復制，對象類型等，進行序列化
                    if (value.GetType().IsPrimitive)
                    {
                        value[i] = item.GetType().GetProperty(dtColumn.ColumnName).GetValue(item);
                    }
                    else
                    {
                        value[i] = JsonConvert.SerializeObject(item.GetType().GetProperty(dtColumn.ColumnName).GetValue(item));
                    }
                }
                dt.Rows.Add(value);
            }
            return dt;
        }

        public static DataTable ListToDataTable<T>(List<T> list)
        {
            System.Data.DataTable result = new System.Data.DataTable();
            if (list.Count > 0)
            {
                PropertyInfo[] propertys = list[0].GetType().GetProperties();
                foreach (PropertyInfo pi in propertys)
                {
                    //獲取類型
                    Type colType = pi.PropertyType;
                    //當類型為Nullable<>時
                    if ((colType.IsGenericType) && (colType.GetGenericTypeDefinition() == typeof(Nullable<>)))
                    {
                        colType = colType.GetGenericArguments()[0];
                    }
                    result.Columns.Add(pi.Name, colType);
                }
                for (int i = 0; i < list.Count; i++)
                {
                    ArrayList tempList = new ArrayList();
                    foreach (PropertyInfo pi in propertys)
                    {
                        object obj = pi.GetValue(list[i], null);
                        tempList.Add(obj);
                    }
                    object[] array = tempList.ToArray();
                    result.LoadDataRow(array, true);
                }
            }
            return result;
        }