<%@ Page Title="" Language="C#" MasterPageFile="~/Admin/Include/Admin_Main.master"
AutoEventWireup="true" CodeFile="c.aspx.cs" Inherits="Test_file_c" StylesheetTheme="Admin" %>
<asp:Content ID="Content1" ContentPlaceHolderID="contentPlaceHolder1" runat="Server">
<yyc:SmartGridView ID="GridView1" runat="server" AutoGenerateColumns="False" DataKeyNames="fullname"
SkinID="AdminGridView" AllowPaging="true" AllowSorting="true" PageSize="10" OnPageIndexChanging="GridView1_PageIndexChanging"
OnSorting="GridView1_Sorting" OnRowCommand="GridView1_RowCommand1">
<Columns>
<asp:TemplateField>
<HeaderTemplate>
<asp:CheckBox ID="All" runat="server" Text="全选" />
</HeaderTemplate>
<ItemTemplate>
<asp:CheckBox ID="Item" ToolTip='<%# Eval("fullname")%>' runat="server" />
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="文件名" SortExpression="name">
<ItemTemplate>
<asp:HyperLink ID="url" runat="server" NavigateUrl='<%# Eval("url") %>' Target="_blank"
Text='<%# Eval("name") %>'></asp:HyperLink>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="文件大小" SortExpression="size">
<ItemTemplate>
<asp:Label ID="size" runat="server" Text='<%# Bind("size") %>'></asp:Label><asp:Label
ID="kb" runat="server" Text='KB'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="文件类型" SortExpression="type">
<ItemTemplate>
<asp:Label ID="type" runat="server" Text='<%# Bind("type") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="修改日期" SortExpression="date">
<ItemTemplate>
<asp:Label ID="date" runat="server" Text='<%# Bind("date") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="操作">
<ItemTemplate>
<asp:LinkButton ID="delete" runat="server" CommandName="Del" CommandArgument='<%# Eval("fullname") %>'
CausesValidation="false" OnClientClick="return confirm('确定要删除该文件吗？一旦删除将无法恢复！')">删除</asp:LinkButton>
</ItemTemplate>
</asp:TemplateField>
</Columns>
<CascadeCheckboxes>
<yyc:CascadeCheckbox ChildCheckboxID="Item" ParentCheckboxID="All" />
</CascadeCheckboxes>
<CheckedRowCssClass CheckBoxID="Item" CssClass="SelectedRow" />
<CustomPagerSettings PagingMode="Webabcd" TextFormat="每页{0}/{1}条记录 第{2}页/共{3}页 " />
<PagerSettings FirstPageText="首页" LastPageText="末页" Mode="NextPreviousFirstLast"
NextPageText="下一页" PreviousPageText="上一页" />
</yyc:SmartGridView>
<br />
<br />
<asp:Button ID="Del" runat="server" Text="删除" OnClick="Del_Click" />
<asp:Label ID="ResultMsg3" runat="server" Text="Label"></asp:Label>
</asp:Content>
后台：
using System;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;
using System.Data.SqlClient;
using System.Collections;
using System.Collections.Generic;
using System.IO;
public partial class Test_file_c : System.Web.UI.Page
{
protected string dirPath = "~/UploadFiles/image/yuekan/";
protected void Page_Load(object sender, EventArgs e)
{
if (!Page.IsPostBack)
{
ViewState["sortexpression"] = "date";
BindGridView(dirPath, ViewState["sortexpression"].ToString());
}
}
protected void GridView1_PageIndexChanging(object sender, GridViewPageEventArgs e)
{
GridView1.PageIndex = e.NewPageIndex;
BindGridView(dirPath, ViewState["sortexpression"].ToString());
}
protected void GridView1_Sorting(object sender, GridViewSortEventArgs e)
{
ViewState["sortexpression"] = e.SortExpression;
if (ViewState["sortdirection"] == null)
{
ViewState["sortdirection"] = "asc";
}
else
{
if (ViewState["sortdirection"].ToString() == "asc")
{
ViewState["sortdirection"] = "desc";
}
else
{
ViewState["sortdirection"] = "asc";
}
}
BindGridView(dirPath, ViewState["sortexpression"].ToString());
}
public void BindGridView(string dirPath, string sortExpression)
{
if (ViewState["sortdirection"] == "asc")
SortGridView(GridView1, Function.DirToDataTable(dirPath), sortExpression, false);
else
SortGridView(GridView1, Function.DirToDataTable(dirPath), sortExpression, true);
}
public static void SortGridView(GridView gv, DataTable dt, string orderByString, bool isAsc)
{
DataView dv = dt.DefaultView;
if (orderByString != null)
{
if (orderByString.ToString().Trim().Length > 0)
{
if (isAsc)
dv.Sort = orderByString + " asc";
else
dv.Sort = orderByString + " desc";
}
}
gv.DataSource = dv;
gv.DataBind();
}
protected void Del_Click(object sender, EventArgs e)
{
for (int i = 0; i < GridView1.Rows.Count; i++)
{
CheckBox cbx = GridView1.Rows[i].FindControl("Item") as CheckBox;
if (cbx.Checked)
{
FileInfo oFile = new FileInfo(cbx.ToolTip.ToString().Trim());
if (oFile.Exists)
{
oFile.Delete();
BindGridView(dirPath, ViewState["sortexpression"].ToString());
}
}
}
}
protected void GridView1_RowCommand1(object sender, GridViewCommandEventArgs e)
{
if (e.CommandName == "Del")
{
if (e.CommandArgument != null)
{
string strFilename = e.CommandArgument.ToString().Trim();
FileInfo oFile = new FileInfo(strFilename);
if (oFile.Exists)//判断文件是否存在
{
oFile.Delete();
BindGridView(dirPath, ViewState["sortexpression"].ToString());
}
}
else
{
JScript.Alert("对不起您操作的文件不存在。");
}
}
}
}
public class Function{
//将虚拟目录转换成DataTable
public static DataTable DirToDataTable(string strDir)
{
try
{
DataTable FileTable = new DataTable();
FileTable.Columns.Add(new DataColumn("name", typeof(String)));
FileTable.Columns.Add(new DataColumn("size", typeof(Int32)));
FileTable.Columns.Add(new DataColumn("type", typeof(String)));
FileTable.Columns.Add(new DataColumn("date", typeof(DateTime)));
FileTable.Columns.Add(new DataColumn("fullname", typeof(String)));
FileTable.Columns.Add(new DataColumn("url", typeof(String)));
if (!Directory.Exists(strDir))
{
DirectoryInfo Dir = new DirectoryInfo(HttpContext.Current.Server.MapPath(strDir));
foreach (FileInfo f in Dir.GetFiles())
{
DataRow FileRow = FileTable.NewRow();
FileRow[0] = f.Name;
FileRow[1] = f.Length / 1024;
FileRow[2] = f.Extension ?? "unknow";
FileRow[3] = f.LastWriteTime;
FileRow[4] = f.FullName;
FileRow[5] = strDir + f.Name;
FileTable.Rows.Add(FileRow);
}
}
return FileTable;
}
catch
{
return null;
}
}
}