.NET 读取本地文件绑定到GridViewRow

wjgl.aspx.cs:

using System;

using System.Collections;

using System.Configuration;

using System.Data;

using System.Linq;

using System.Web;

using System.Web.Security;

using System.Web.UI;

using System.Web.UI.HtmlControls;

using System.Web.UI.WebControls;

using System.Web.UI.WebControls.WebParts;

using System.Xml.Linq;

using System.IO;

using DBUtility;

namespace qhsy.DWJSC

{

    public partial class wjgl : System.Web.UI.Page

    {

        protected string File_List = "";

        protected void Page_Load(object sender, EventArgs e)

        {

            if (Page.IsPostBack == false)

            {

                if (Request.UrlReferrer.ToString().Contains("wjsc.aspx")==false)

                {

                    //保存上一页的url传递到wjsc.aspx

                    HttpCookie cookie = new HttpCookie("back");

                    cookie.Values.Add("url", Request.UrlReferrer.ToString());

                    Response.AppendCookie(cookie);

                }

                lb_title.Text = "文 件 管 理";

                //是否查询

                string sfcx = Request.QueryString["sfcx"];

                if (sfcx == "")

                {

                    //gridFileList.Columns[0].Visible = false;

                    bg.Visible = false;

                }

                ////是否图片

                //string sftp = Request.QueryString["sftp"];

                //if (sftp == "1")

                //{

                //    //GridView中添加图片缩略图

                //    gridFileList.Columns[2].Visible = true;

                //}

                //操作模块id,参数

                ViewState["shmkid"] = Request.QueryString["shmkid"];

                //路径信息    fj = "~/File/JYWJ/8910427356/5209168734/";

                ViewState["fj"] = Request.QueryString["fj"];

                string path = string.Format("{0}", (string)ViewState["fj"]);

                path = Server.MapPath(path);

                ixExit(path);

                 //设定初始排序字段为文件修改时间FileLastWriteTime

                 gridFileList.Attributes.Add("SortExpression", "FileLastWriteTime");

                 gridFileList.Attributes.Add("SortDirection", "DESC");

                 BindGrid();

            }

        }

        //绝对路径（目录）是否存在，不存在则创建

        private void ixExit(string path)

        {

            if (!Directory.Exists(path))

            {

                Directory.CreateDirectory(path);

            }

        }

        //读取本地文件绑定到GridViewRow

        protected void gridFileList_RowDataBound(object sender, GridViewRowEventArgs e)

        {

            if (e.Row.RowType == DataControlRowType.DataRow)

            {

                Image Img = (Image)e.Row.Cells[].FindControl("ImgPath");

                Img.ImageUrl = e.Row.Cells[].Text;

                e.Row.Cells[].Text = "";

            }

            DataClass.Comm.gv_hbs(sender, e);

        }

        //分页

        protected void gridFileList_PageIndexChanging(object sender, GridViewPageEventArgs e)

        {

            gridFileList.PageIndex = e.NewPageIndex;

            this.BindGrid();

        }

        //绑定gridview

        private void BindGrid()

        {

            //获取数据源

            DataTable dtb = FileDataTable();

            //排序

            string SortDirection = gridFileList.Attributes["SortDirection"].ToString();

            string SortExpression = gridFileList.Attributes["SortExpression"].ToString();

            dtb.DefaultView.Sort = string.Format("{0} {1}", SortExpression, SortDirection);

            //赋数据源并绑定

            gridFileList.DataSource = dtb;

            gridFileList.DataBind();

            gridFileList.Visible = gridFileList.Rows.Count > ;

            gridFileList.Attributes.Add("BorderColor", "#000000");

        }

        private DataTable FileDataTable()

        {

            string fj = (string)ViewState["fj"];

            string path = Server.MapPath(fj);

            GetFiles(path);

            //构造DataTABLE

            DataTable dt = new DataTable();

            dt.Columns.Add(new DataColumn("FilePath", typeof(string)));

            dt.Columns.Add(new DataColumn("FileName", typeof(string)));

            dt.Columns.Add(new DataColumn("FileLength", typeof(string)));

            dt.Columns.Add(new DataColumn("FileLastWriteTime", typeof(string)));

            DataRow dr;

            //将文件数组集合切割到数组

            string[] dtaArry = File_List.Split(',');

            for (int i = ; i < dtaArry.Length; i++)

            {

                if (dtaArry[i].Trim() != "")//判断是否为空

                {

                    dr = dt.NewRow();

                    dr[] = dtaArry[i];//文件路径

                    dr[] = Path.GetFileName(dtaArry[i]);//文件名

                    //获取文件大小(Decimal.Round(Convert.ToDecimal(FI.Length), 2)

                    string FIer = dtaArry[i].ToString();

                    FileInfo FI = new FileInfo(FIer);

                    dr[] = Convert.ToString(Decimal.Round(Convert.ToDecimal(FI.Length / ), )) + "KB";//获取的是字节byte，还需要转换为千字节KB

                    dr[] = FI.LastWriteTime;

                    dt.Rows.Add(dr);

                }

            }

            return dt;

        }

        //遍文件夹下的所有子文件夹下的文件

        public void GetFiles(string ObjDirPath)

        {

            DirectoryInfo SourceDir = new DirectoryInfo(ObjDirPath);

            foreach (FileSystemInfo FSI in SourceDir.GetFileSystemInfos())

            {

                if (FSI is DirectoryInfo)

                {

                    //如果是文件夹则递归

                    GetFiles(FSI.FullName);

                }

                else

                {

                    string FilePath = "";

                    FilePath = FSI.FullName.ToLower();

                    string fj = (string)ViewState["fj"];

                    string mc = fj.Substring(, );

                   //FilePath = FilePath.Substring(FilePath.LastIndexOf(mc));

                   File_List += FilePath + ",";

                }

            }

        }

        //排序

        protected void gridFileList_Sorting(object sender, GridViewSortEventArgs e)

        {

            string sortExpression = e.SortExpression.ToString();

            string sortdirection = "ASC";

            if (sortExpression == gridFileList.Attributes["SortExpression"])

            {

                sortdirection = (gridFileList.Attributes["SortDirection"].ToString() == sortdirection ? "DESC" : "ASC");

            }

            gridFileList.Attributes["SortExpression"] = sortExpression;

            gridFileList.Attributes["SortDirection"] = sortdirection;

            this.BindGrid();

        }

        protected void btnDel_Click(object sender, EventArgs e)

        {

            try

            {

                FileInfo fileinfo;

                bool IsSelect = false;

                for (int i = ; i < gridFileList.Rows.Count; i++)

                {

                    GridViewRow row = gridFileList.Rows[i];

                    if (((CheckBox)row.FindControl("chkDel")).Checked)

                    {

                        IsSelect = true;

                        Image Img = (Image)gridFileList.Rows[i].Cells[].FindControl("ImgPath");

                        fileinfo = new FileInfo(Img.ImageUrl);

                        if (fileinfo.Exists)

                        {

                            fileinfo.Delete();

                            //根据ccid删除表jy_wj_wjccb中的数据

                            string str = string.Format("delete from jy_wj_wjccb where fj='{0}'", Img.ImageUrl.Substring(, Img.ImageUrl.Length-));

                            DbHelperSQL.Query(str);

                        }

                    }

                }

                if (IsSelect)

                {

                    DataClass.Comm.Alert(Page, "删除成功！");

                }

                else

                {

                    DataClass.Comm.Alert(Page, "请选择要删除的行！");

                }

            }

            catch (Exception ex)

            {

                //DataClass.Comm.Alert(Page, ex.ToString());

            }

            BindGrid();

        }

        protected void btnAdd_Click(object sender, EventArgs e)

        {

            string s = string.Format("~/DWJSC/wjsc.aspx?shmkid={0}&&fj={1}&&sfcg={2}",(string)ViewState["shmkid"], (string)ViewState["fj"], );

            Response.Redirect(s);

        }

        protected void btBack_Click(object sender, EventArgs e)

        {

            Response.Redirect((Request.Cookies["back"].Values["url"]).ToString());

            //清空Cookies["back"]

            Response.Cookies["back"].Expires = DateTime.Now.AddDays(-);

        }

    }

}

wjgl.aspx:

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="wjgl.aspx.cs" Inherits="qhsy.DWJSC.wjgl" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" >

<head id="Head1" runat="server">

    <title>文件管理</title>

    <link href="../COMM/CSS/CSS.css" rel="stylesheet" type="text/css" />

    <style type="text/css">

        #wjgl

    {

        background:#F2FBE5; text-align:center;  vertical-align:middle;

        width:%;

        height: 714px;

    }

        #div

        {

            height: 701px;

        }

    </style>

    <script type="text/javascript">

        function SelAllClick() {

          var isSelAll = document.getElementById("gridFileList_ctl01_CheckAll").checked;

          for (var i = ; i < ; i++) {

            if (i < ) checkBoxId = "gridFileList_ctl0" + i + "_chkDel";

            else checkBoxId = "gridFileList_ctl" + i + "_chkDel";

            var checkBoxObj = document.getElementById(checkBoxId);

            if (checkBoxObj == undefined || checkBoxObj == null) break;

            checkBoxObj.checked = isSelAll;

          }

        }

    </script>

</head>

<body class="body">

    <form id="form1" runat="server">

    <div id="div" class="div">

    <div id="wjgl">

      <table width="100%">

      <tr>

        <td>

         <div class="divtitle" >

                <asp:Panel ID="Panel4"  CssClass="pan"  runat="server" >

                    <asp:Label ID="lb_title" runat="server"  CssClass="lab"   Text=""></asp:Label>

                </asp:Panel>

            </div>

        </td>

      </tr>

      <tr>

        <td>

             <asp:GridView  runat="server" ID="gridFileList"

                 Width="100%"    HeaderStyle-Height=""

                  OnRowDataBound="gridFileList_RowDataBound" AllowPaging="True"

                 PageSize="" OnPageIndexChanging="gridFileList_PageIndexChanging"

                  onsorting="gridFileList_Sorting" BorderStyle="None"

                 AutoGenerateColumns="false"  >

        <Columns>

        <asp:TemplateField ItemStyle-CssClass="divcheck"  >

        <ItemStyle HorizontalAlign="Center" />

                <HeaderTemplate>&nbsp;<input id="CheckAll" type="checkbox" onclick="SelAllClick();"  runat="server"/></HeaderTemplate>

                <ItemTemplate>

                    <asp:CheckBox runat="server" ID="chkDel" />

                </ItemTemplate>

            </asp:TemplateField>

            <asp:TemplateField HeaderText="序号" InsertVisible="False">

              <ItemStyle HorizontalAlign="Center" />

             <ItemTemplate>

                 <asp:Label ID="Label2" runat="server" Text='<%# this.gridFileList.PageIndex * this.gridFileList.PageSize + this.gridFileList.Rows.Count + 1%>'/>

            </ItemTemplate>

            </asp:TemplateField>

             <asp:TemplateField HeaderText="图片"  Visible="false" InsertVisible="False" >

              <ItemStyle HorizontalAlign="Center" />

             <ItemTemplate>

                 <asp:Image ID="ImgPath" runat="server" Width="" Height="" />

            </ItemTemplate>

            </asp:TemplateField>

           <asp:BoundField DataField="FileName" HeaderText="名称" SortExpression="FileName" >

                <ItemStyle HorizontalAlign="Center" />

            </asp:BoundField>

            <asp:BoundField DataField="FileLength"  HeaderText="大小" SortExpression="FileLength" >

                <ItemStyle HorizontalAlign="Center" />

            </asp:BoundField>

               <asp:BoundField DataField="FilePath"    SortExpression="FilePath">

                <ItemStyle HorizontalAlign="Center" />

            </asp:BoundField>

            <asp:BoundField DataField="FileLastWriteTime" HeaderText="修改时间" SortExpression="FileLastWriteTime" >

                <ItemStyle HorizontalAlign="Center" />

            </asp:BoundField>

        </Columns>

    </asp:GridView>

        </td>

      </tr>

       <tr id="bg" runat="server">

            <td align="center" class="sub_bg">

                <asp:Button runat="server" ID="btnAdd" Text="添加文件" OnClick="btnAdd_Click" style="height: 26px" />&nbsp;

            <asp:Button runat="server" ID="btnDel" Text="删除文件" OnClick="btnDel_Click" OnClientClick="return confirm('提示：确定要删除吗？');" />

            &nbsp;

                <asp:Button ID="btBack" runat="server" Text="返回上一页" onclick="btBack_Click" />

                </td>

        </tr>

     </table>

    </div>

     </div>

    </form>

</body>

</html>