1、js前端頁面獲取後臺返回的list集合

var topupList = ViewBag.TopupList;

function TopupPage(pageIndex){

   var topupJson = @Html.Raw(Json.Encode(topupList));

   var list = eval(topupJson);

}

2、時間戳格式化時間格式

function formatDateBoxFull(value) {

    if (value == null || value == '') {

        return '';

    }

    var dt = parseDate(value);

    //console.log(dt.getFullYear());

    return dt.getFullYear() == 1 ? "— —" : dt.format("yyyy-MM-dd hh:mm:ss");



}



var parseDate = function (timeSpan) {

    var timeSpan = timeSpan.replace('Date', '').replace('(', '').replace(')', '').replace(/\//g, '');

    var d = new Date(parseInt(timeSpan));

    return d;

};



//為Date型別拓展一個format方法，用於格式化日期

Date.prototype.format = function (format)

{

    var o = {

        "M+": this.getMonth() + 1, //month

        "d+": this.getDate(),    //day

        "h+": this.getHours(),   //hour

        "m+": this.getMinutes(), //minute

        "s+": this.getSeconds(), //second

        "q+": Math.floor((this.getMonth() + 3) / 3),  //quarter

        "S": this.getMilliseconds() //millisecond

    };



    if (/(y+)/.test(format))

        format = format.replace(RegExp.$1,

            (this.getFullYear() + "").substr(4 - RegExp.$1.length));

    for (var k in o)

        if (new RegExp("(" + k + ")").test(format))

            format = format.replace(RegExp.$1,

                RegExp.$1.length == 1 ? o[k] :

                    ("00" + o[k]).substr(("" + o[k]).length));

    return format;

};



運用： $("#RefundTime").val(formatDateBoxFull(list[pageIndex].RefundTime));
 

3、a標籤點選變紅，其他的恢復原狀
@for (int i = 0; i < topupList.Count; i++){

var id = "TopupPage" + i;

<a id="@id" class="TopupPage" style="padding-left:5px;" onclick="TopupPage(@i)">@(i + 1)</a>
}

var alist = document.getElementsByClassName("TopupPage");

$(".TopupPage").css({color:"#000"});

$("#TopupPage"+pageIndex).css({color:"#ff0000"}); //令當前標籤高亮

4、js動態時間

$(function () {

    GetDate();

    setInterval("GetDate()", 1000);

});

function GetDate() {

    var date = new Date();

    var year = date.getFullYear();

    var month = date.getMonth() + 1;

    var day = date.getDate();

    var hour = date.getHours();

    var minute = date.getMinutes();

    var second = date.getSeconds();

    var timeStr = year + "-" +

        (month < 10 ? "0" + month : month) + "-" +

        (day < 10 ? "0" + day : day) + " " +

        (hour < 10 ? "0" + hour : hour) + ":" +

        (minute < 10 ? "0" + minute : minute) + ":" +

        (second < 10 ? "0" + second : second);

    //console.log(timeStr);

    $("#RealTime").html(timeStr);

}
 

5、鍵值對使用

Dictionary<int, List> dic = new Dictionary<int, List>();

if (!dic.ContainsKey(year)) //判斷鍵值對中是否存在某個鍵

dic.Add(year, dataList);

dataList = new List(); //新增玩list集合之後，使用new 不要使用Clare()方法，不然賦值的dic中list也會被清空

ViewBag.DicList = dic.OrderByDescending(p => p.Key).ToDictionary(p => p.Key, o => o.Value); //將鍵值對按key值降序排序

6、檔案上傳功能

    [HttpPost]

    /// <summary>

    /// 上傳檔案

    /// </summary>

    /// <returns></returns>

    public JsonResult ExportFile()

    {

        UploadFile _uploadFile = new UploadFile();

        try

        {

            var file = Request.Files[0]; //獲取選中檔案

            string fileNameEx = Path.GetExtension(file.FileName);//獲取副檔名

            string fileNameTrue = Path.GetFileNameWithoutExtension(file.FileName);// 獲取檔名不含副檔名

            string imgType = Configs.GetValue("ImgType").ToUpper();



            if (file == null || string.IsNullOrEmpty(file.FileName) || file.ContentLength == 0)

            {

                _uploadFile.code = -1;

                _uploadFile.data = new { src = "" };

                _uploadFile.msg = "上傳出錯!未檢測到檔案";

                return Json(_uploadFile);

            }



            if (!imgType.Contains(fileNameEx.ToUpper().Replace(".", "")))

            {

                _uploadFile.code = -1;

                _uploadFile.data = new { src = "" };

                _uploadFile.msg = "上傳出錯!圖片格式只支援"+ imgType;

                return Json(_uploadFile);

            }



            string filePathName = string.Empty;

            //定義本地路徑位置

            string localPath = Server.MapPath("~/Upload/ArticleUploadImg/");



            string tmpName = Server.MapPath("~/Upload/ArticleUploadImg/");

            var tmp = file.FileName;

            var tmpIndex = 0;

            //判斷是否存在相同檔名的檔案 相同累加1繼續判斷  

            while (System.IO.File.Exists(tmpName + tmp))

            {

                tmp = fileNameTrue + "_" + ++tmpIndex + fileNameEx;

            }

            //不帶路徑的最終檔名  

            filePathName = tmp;



            if (!Directory.Exists(localPath))

                Directory.CreateDirectory(localPath);



            file.SaveAs(Path.Combine(tmpName, filePathName));   //儲存圖片（資料夾）  



            _uploadFile.code = 0;

            _uploadFile.data = new { src = Path.Combine("/Upload/ArticleUploadImg/", filePathName), title = Path.GetFileNameWithoutExtension(filePathName) };   

            _uploadFile.msg = "上傳成功";

            return Json(_uploadFile);

        }

        catch (Exception)

        {

            return Json(_uploadFile, JsonRequestBehavior.AllowGet);

        }

    }

7、List 合併操作

List listA = new List { 1, 4, 8, 9, 7, 8, 3 };

List listB = new List { 13, 4, 17, 29, 2 };

List ResultA = listA.Union(listB).ToList(); //剔除重複項

List ResultB = listA.Concat(listB).ToList(); //保留重複項