Step 7 .Controller
7-1先using

using ithome2.Models;

7-2建立上傳頁面 UploadExcel() 以及儲存結果頁面 SaveExcel()

 public ActionResult UploadExcel()
    {
        return View();

    }

    [AcceptVerbs(HttpVerbs.Post)]
    [HttpPost]
    public ActionResult SaveExcel(HttpPostedFileBase upfile)
    {


        string savePath = @"F:\ttt\"; //儲存的檔案路徑
        if (upfile == null)
        {
            ViewBag.fal = "請選擇檔案上傳";
            return View();
        }
        string fileName = System.IO.Path.Combine(savePath + upfile.FileName);

        // string savePath = @"C:\Program Files\IIS Express\";
        //存Excel
        if (upfile != null)
        {
            if (upfile.ContentLength > 0)
            {

                string saveFile = System.IO.Path.Combine(savePath + upfile.FileName);

                ViewBag.save = saveFile;
                upfile.SaveAs(saveFile);
            }





            var excelFile = new LinqToExcel.ExcelQueryFactory(fileName);
            var excel = excelFile.Worksheet<exl>("工作表1");  //取得工作區欄位名稱




            foreach (var item in excel) //item 為excel欄位的值
            {
                var data = new ExcelModel();


                if (item.name != null)
                {
                    data.name = item.name;

                }
                else
                {
                    data.name = "";
                }


                if (item.tel != null)
                {
                    data.tel = item.tel;
                }
                else
                {
                    data.tel = "";
                }




                ViewBag.Msg = "";


                if (item.tel.Length != 10)
                {
                    ViewBag.Msg += "上傳失敗:" + item.tel + "&nbsp;&nbsp;&nbsp;&nbsp;錯誤原因：此筆【電話號碼】錯誤(應為10碼數字)<br />";

                }

                else
                {
                    Save_Excel(data.name.Trim(), data.tel.Trim());

                    ViewBag.Msg += "資料成功建立:" + item.name + "_" + item.tel + "<br>";



                }


            }
            return View();
        }
        else
        {

            ViewBag.Msg += "檔案上傳失敗";

            return View();

        }


    }
    public class exl
    {

        public string name { get; set; }
        public string tel { get; set; }

    }

Step 8 .View()

8-1 UploadExcel()

@{
    ViewBag.Title = "檔案批次匯入";
}

<h2>Excel檔案批次匯入</h2>

@using (Html.BeginForm("SaveExcel", "Excel", FormMethod.Post, new { enctype = "multipart/form-data" }))
{
    <input type="file" name="upfile" />
    <input type="submit" name="upload" value="上傳" />

}
<br>

8-2 SaveExcel

@{
    ViewBag.Title = "上傳Excel結果";
}

<h2>上傳Excel結果</h2>

<font color="red">  @Html.Raw(ViewBag.Msg)  </font>

9.上傳時 錯誤訊息

解決方案 下載套件：
https://www.microsoft.com/zh-tw/download/details.aspx?id=13255

10. 建立Excel 資料

    

11.儲存結果(1筆成功寫入，1筆電話為4碼，錯誤不寫入)

由於明天是難得的假日，所以文章內容可能會沒這個多圖片以及程式碼~

參考網址：https://dotblogs.com.tw/dragoncancer/2016/03/31/102924