Table中全选问题

最新推荐文章于 2025-02-10 10:36:30 发布

转载最新推荐文章于 2025-02-10 10:36:30 发布 · 146 阅读

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CC 4.0 BY-SA版权

原文链接：http://www.cnblogs.com/syb123/archive/2008/09/18/1293362.html

本博客介绍了一个管理多媒体文件的交互式网页应用，包括全选、清空、删除功能，通过按钮操作实现对文件的选择和删除，提供直观的用户界面。

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aspx

cs
using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;

public partial class _Default : System.Web.UI.Page 
{
private System.Collections.Generic.List<TableCell> cellList
= new System.Collections.Generic.List<TableCell>();
private int num;
private int numtwo;
private string[] name;

protected void Page_Load(object sender, EventArgs e)
    {

        ShowView();


    }

private void ShowView()
    {
string vpath = "~/summer";

string path = this.MapPath(vpath);

        System.IO.DirectoryInfo di = new System.IO.DirectoryInfo(path);
        System.IO.FileInfo[] files = di.GetFiles("*.jpg");

// 首先创建整个的表格


// 创建一个保存所有格的集合
        this.Table1.Rows.Clear();
        cellList.Clear();

int lineCount = (files.Length + 2) / 3;
        num = lineCount;
        numtwo = files.Length;
        name = new string[files.Length];
for (int i = 0; i < lineCount; i++)
        {
            TableRow row = new TableRow();

this.Table1.Rows.Add(row);

for (int j = 0; j < 3; j++)
            {
                TableCell cell = new TableCell();
                row.Cells.Add(cell);

                cellList.Add(cell);
            }
        }

// 将图片加入到格中
        for (int i = 0; i < files.Length; i++)
        {
            System.IO.FileInfo fi = files[i];
            Image img = new Image();
            img.Width = Unit.Pixel(200);
            img.Height = Unit.Pixel(160);
            img.ImageUrl = string.Format("~/summer/{0}", fi.Name);
            name[i] = fi.Name;
            cellList[i].Controls.Add(img); 
            CheckBox chb = new CheckBox();
            chb.ID = "checkbox" + i.ToString();
            Label lbl = new Label();
            lbl.Text = fi.Name;
            Literal br1 = new Literal();
            br1.Text = "<br/>";
            cellList[i].Controls.Add(br1);
            cellList[i].Controls.Add(lbl);
            cellList[i].Controls.Add(chb);

            Literal br2 = new Literal();
            br2.Text = "<br/>";
            cellList[i].Controls.Add(br2);
            Button btn = new Button();
            btn.ID = string.Format("BtnDelete{0}", i);
            btn.Text = fi.Name;
// 注册事件处理方法
            btn.Click += new EventHandler(BtnDelete_Click);

            cellList[i].Controls.Add(btn);





        }
    }


protected void Button1_Click(object sender, EventArgs e)
    {
string vpath = "~/summer";
string path = this.MapPath(vpath);

for (int i = 0; i < numtwo; i++)
        {
            CheckBox cbx = (CheckBox)cellList[i].Controls[3];
if (cbx.Checked)
            {
string filepath = System.IO.Path.Combine(path, name[i]);
                System.IO.File.Delete(filepath);
            }
        }
        ShowView();
    }

protected void BtnDelete_Click(object sender, EventArgs e)
    {
        Button btn = sender as Button;
string filename = btn.Text;
string vpath = "~/summer";
string path = this.MapPath(vpath);
string filepath = System.IO.Path.Combine(path, filename);
        System.IO.File.Delete(filepath);
        ShowView();
    }
protected void LinkButton1_Click(object sender, EventArgs e)
    {
for (int i = 0; i < numtwo; i++)
        {
            CheckBox cbx = (CheckBox)cellList[i].Controls[3];
            cbx.Checked = true;
        }
    }
protected void LinkButton2_Click(object sender, EventArgs e)
    {
for (int i = 0; i < numtwo; i++)
        {
            CheckBox cbx =(CheckBox) cellList[i].Controls[3];
            cbx.Checked = false;
        }
    }
}

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>

<!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>
</head>
<body>
<form id="form1" runat="server">
<div style="text-align: center">
<br />
<br />
<asp:LinkButton ID="LinkButton1" runat="server" OnClick="LinkButton1_Click">全选</asp:LinkButton>
<asp:LinkButton ID="LinkButton2" runat="server" OnClick="LinkButton2_Click">清空</asp:LinkButton><br />
<br />
<asp:Table ID="Table1" runat="server">
</asp:Table>
    <asp:Button ID="Button1" runat="server" OnClick="Button1_Click"
Text="Button" /></div>
</form>
</body>
</html>

转载于:https://www.cnblogs.com/syb123/archive/2008/09/18/1293362.html