Asp.net 部分: <%@ Page Language="C#" AutoEventWireup="true" CodeBehind="MyFiles_List.aspx.cs" Inherits="lbWeb.webAdmin.MyFiles_List" %> <!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 runat="server"> <title>无标题页</title> <script language="javascript" type="text/javascript"> function selectAll(obj) { var theTable = obj.parentElement.parentElement.parentElement; var i; var j = obj.parentElement.cellIndex; for(i=0;i<theTable.rows.length;i++) { var objCheckBox = theTable.rows[i].cells[j].firstChild; if(objCheckBox.checked!=null)objCheckBox.checked = obj.checked; } } </script> </head> <body> <form id="form1" runat="server"> <div> <table width="100%"> <tr> <td> 文件管理 </td> </tr> <tr> <td> <asp:GridView Width="100%" runat="server" ID="gridFileList" AutoGenerateColumns="false" CellPadding="4" ForeColor="#333333" GridLines="None" OnRowDataBound="gridFileList_RowDataBound" AllowPaging="True" PageSize="6" OnPageIndexChanging="gridFileList_PageIndexChanging" AllowSorting="True" onsorting="gridFileList_Sorting" > <Columns> <asp:TemplateField> <ItemStyle HorizontalAlign="Center" /> <HeaderTemplate> <input id="CheckAll" type="checkbox" onclick="selectAll(this);" />全选</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" InsertVisible="False"> <ItemStyle HorizontalAlign="Center" /> <ItemTemplate> <asp:Image ID="ImgPath" runat="server" Width="150" Height="80" /> </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" ShowHeader="false"> <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> <td align="center" class="sub_bg"> <asp:Button runat="server" ID="btnAdd" Text="添 加" OnClick="btnAdd_Click" /> <asp:Button runat="server" ID="btnDel" Text="删 除" OnClick="btnDel_Click" OnClientClick="return confirm('提示:确定要删除吗?');" /> </td> </tr> </table> </div> </form> </body> </html> CS部分: using System; using System.Collections; using System.Configuration; using System.Data; 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.IO; using System.Text; namespace lbWeb.webAdmin { public partial class MyFiles_List : System.Web.UI.Page { protected string File_List=""; protected void Page_Load(object sender, EventArgs e) { if (!IsPostBack) { //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(); } } ///<summary> ///要显示的文件扩展名 ///</summary> ///<param name="type"></param> ///<returns></returns> public bool checkFileType(string type) { bool FileType = false; string[] type_ = new string[4]; type = type.ToLower(); type_[0] = ".jpg"; type_[1] = ".gif"; type_[2] = ".jpeg"; type_[3] = ".png"; //可在此添加上传文件的后缀名 for (int i = 0; i < type_.Length; i++) { if (type.Contains(type_[i].ToString())) { FileType = true; } } return FileType; } ///<summary> ///遍文件夹下的所有子文件夹下的文件 ///</summary> ///<param name="ObjDirPath">文件夹</param> 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 { //如果是符合要求的文件则垒加集合,因为我只要求显示图片文件,在checkFileType方法里定义要显示文件的扩展名 if (checkFileType(FSI.Extension)) { //由于是物理路径,如e:\luobing_web\uploadfiles\picture\test.jpg这种形式,需要提取虚拟路径,如:../uploadfiles/picture/test.jpg string FilePath = ""; //一步写来看起混乱,就分开写了 FilePath = FSI.FullName.ToLower(); FilePath = FilePath.Substring(FilePath.LastIndexOf("uploadfiles\\")); FilePath = "../"+FilePath.Replace("\\", "/");//这里在路径前加了../,因为我的项目里页面文件和上传文件夹不是同级文件夹 File_List += FilePath + ","; } } } } ///<summary> ///构造DataTABLE来绑定GRIDVIEW ///</summary> ///<returns></returns> public DataTable FileDataTable() { GetFiles(Server.MapPath(@"~/UploadFiles/")); //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 = 0; i < dtaArry.Length; i++) { if (dtaArry[i].Trim() != "")//防空元素 { dr = dt.NewRow(); dr[0] = dtaArry[i];//文件路径 dr[1] = Path.GetFileName(dtaArry[i]);//文件名 //获取文件大小 FileInfo FI = new FileInfo(Server.MapPath(@dtaArry[i])); dr[2] = Convert.ToString(FI.Length / 1000)+"KB";//获取的是字节byte,还需要转换为千字节KB dr[3] = FI.LastWriteTime; dt.Rows.Add(dr); } } return dt; } ///<summary> ///绑定gridview ///</summary> 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(); } ///<summary> ///添加 ///</summary> ///<param name="sender"></param> ///<param name="e"></param> protected void btnAdd_Click(object sender, EventArgs e) { Response.Redirect("MyFiles_Add.aspx"); } ///<summary> ///删除 ///</summary> ///<param name="sender"></param> ///<param name="e"></param> protected void btnDel_Click(object sender, EventArgs e) { try { FileInfo fileinfo; bool IsSelect = false; for (int i = 0; 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[0].FindControl("ImgPath"); fileinfo = new FileInfo(Request.MapPath(@Img.ImageUrl)); if (fileinfo.Exists) { fileinfo.Delete(); } } } if (IsSelect) { ValueChecked.MessageBox(Page, "删除成功!"); } else { ValueChecked.MessageBox(Page, "请选择要删除的行!"); } } catch { ValueChecked.MessageBox(Page, "删除失败!"); } BindGrid(); } ///<summary> ///绑定数据行 ///</summary> ///<param name="sender"></param> ///<param name="e"></param> protected void gridFileList_RowDataBound(object sender, GridViewRowEventArgs e) { if (e.Row.RowType == DataControlRowType.DataRow) { Image Img = (Image)e.Row.Cells[0].FindControl("ImgPath"); Img.ImageUrl = e.Row.Cells[5].Text; e.Row.Cells[5].Text=""; } } ///<summary> ///分页 ///</summary> ///<param name="sender"></param> ///<param name="e"></param> protected void gridFileList_PageIndexChanging(object sender, GridViewPageEventArgs e) { gridFileList.PageIndex = e.NewPageIndex; this.BindGrid(); } ///<summary> ///排序 ///</summary> ///<param name="sender"></param> ///<param name="e"></param> 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(); } } }
![](https://img2024.cnblogs.com/blog/35695/202408/35695-20240826070647288-243310440.jpg)