【第二篇】.NET用NPOI读取Excel表格并在页面预览

<table class="table table-bordered table-striped">
                        <thead>
                            <tr>
                                <th>Shape</th>
                                <th>Pcs</th>
                                <th>Sizw</th>
                                <th>Size Range</th>
                                <th>Color</th>
                                <th>Clarity</th>
                                <th>Rap-Price</th>
                                <th>Cut</th>
                                <th>POL</th>
                                <th>SYM</th>
                                <th>H&A</th>
                                <th>FL</th>
                                <th>Diam/LxW</th>
                                <th>Dep%</th>
                                <th>Tab%</th>
                                <th>Rap%</th>
                                <th>LAB1</th>
                                <th>CersNo</th>
                                <th>LAB2</th>
                                <th>CersNo</th>
                                <th>Price/ct￥</th>
                            </tr>
                        </thead>
                        <tbody id="td">
                        </tbody>
                    </table>

function uploadFile() {
        var options = {
            type: "post",
            enctype: "multipart/form-data",
            url: "UploadExcel",
            success: function (data) {
                if (data != null) {
                    $("#td").append(data);
                    $("#uploadData").css("display", "block");
                } else if (data == 0) {
                    layer.msg('文档加载失败！', { icon: 5 }, function () {
                        $("#uploadData").css("display", "none");
                    });
                } else if (data == -1) {
                    layer.msg('数据库连接失败！', { icon: 5 }, function () {
                        $("#uploadData").css("display", "none");
                    });
                }  else {
                    layer.msg('未知错误！', { icon: 5 }, function () {
                        $("#uploadData").css("display", "none");
                    });
                }
            },
            processData: true,
            global: true
        };
        $("#form").ajaxSubmit(options);
    }

public ActionResult UploadExcel()
        {
            string rtn = "1";
            if (Request.Files.Count > 0)
            {
                HttpPostedFileBase file = Request.Files["File"];
                string newFile = Server.MapPath("~/Areas/Admin/UploadFile/StockImprot/") + DateTime.Now.ToString("yyyyMMddHHmmss") + file.FileName;
                while (System.IO.File.Exists(newFile))
                {
                    newFile = Server.MapPath("~/Areas/Admin/UploadFile/StockImprot/") + DateTime.Now.ToString("yyyyMMddHHmmss") + file.FileName;
                }
                file.SaveAs(newFile);
                DataTable ds = ExcelHelper.GetDataTable(newFile);
                if (ds != null)
                {
                    if (ds.Rows != null)
                    {
                        ViewData["datatable"] = ds;
                        return PartialView("_PartialDataTable");  //注意这里返回是的局部视图哦
                    }
                }
                else
                {
                    rtn = "0"; //文档加载失败
                }
            }
            else
            {
                rtn = "-1";
            }
            return Content(rtn);
        }

@if (ViewData["datatable"] != null)
{
    System.Data.DataTable dt = ViewData["datatable"] as System.Data.DataTable;
    foreach (System.Data.DataRow dr in dt.Rows)
    {
    <tr>
        <td>@dr[0].ToString()</td>
        <td>@dr[1].ToString()</td>
        <td>@dr[2].ToString()</td>
        <td>@dr[3].ToString()</td>
        <td>@dr[4].ToString()</td>
        <td>@dr[5].ToString()</td>
        <td>@dr[6].ToString()</td>
        <td>@dr[7].ToString()</td>
        <td>@dr[8].ToString()</td>
        <td>@dr[9].ToString()</td>
        <td>@dr[10].ToString()</td>
        <td>@dr[11].ToString()</td>
        <td>@dr[12].ToString()</td>
        <td>@dr[13].ToString()</td>
        <td>@dr[14].ToString()</td>
        <td>@dr[15].ToString()</td>
        <td>@dr[16].ToString()</td>
        <td>@dr[17].ToString()</td>
        <td>@dr[18].ToString()</td>
        <td>@dr[19].ToString()</td>
        <td>@dr[20].ToString()</td>
    </tr> 
    }
}