文件的创建，复制，删除

前台：

<%@ Page language="c#" Codebehind="OperFile.aspx.cs" AutoEventWireup="false" Inherits="CommonFunction.OperFile" %>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" >

<HTML>

<HEAD>

<title>OperFile</title>

</HEAD>

<asp:label id="Message" style="Z-INDEX: 103; LEFT: 40px; POSITION: absolute; TOP: 48px" runat="server"

ForeColor="Red" Width="488px">Label</asp:label>

<asp:button id="btnCreate" style="Z-INDEX: 105; LEFT: 480px; POSITION: absolute; TOP: 104px"

runat="server" Text="创建文件"></asp:button>

<asp:button id="btnCopy" style="Z-INDEX: 101; LEFT: 480px; POSITION: absolute; TOP: 208px" runat="server"

Text="复制文件"></asp:button>

<asp:button id="btnDelFile" style="Z-INDEX: 102; LEFT: 480px; POSITION: absolute; TOP: 312px"

runat="server" Text="删除文件"></asp:button>

<asp:textbox id="txtFileInfo" style="Z-INDEX: 104; LEFT: 40px; POSITION: absolute; TOP: 96px"

runat="server" Width="425px" Height="360px" TextMode="MultiLine"></asp:textbox>

<HR style="Z-INDEX: 106; LEFT: 32px; WIDTH: 55.46%; POSITION: absolute; TOP: 80px; HEIGHT: 1px"

width="55.46%" SIZE="1">

</FONT>

</form>

</body>

</HTML>

后台：

using System;

using System.Collections;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Web;

using System.Web.SessionState;

using System.Web.UI;

using System.Web.UI.WebControls;

using System.Web.UI.HtmlControls;

using System.IO;

using System.Text;

namespace CommonFunction

{

/// <summary>

/// OperFile 的摘要说明。

/// </summary>

public class OperFile : System.Web.UI.Page

{

protected System.Web.UI.WebControls.TextBox txtFileInfo;

protected System.Web.UI.WebControls.Button btnDelFile;

protected System.Web.UI.WebControls.Button btnCopy;

protected System.Web.UI.WebControls.Button btnCreate;

protected System.Web.UI.WebControls.Label Message;

//测试文件路径

protected string path = "";

FileInfo fi1 ;

private void Page_Load(object sender, System.EventArgs e)

{

path = Server.MapPath("upedFile") + "\\testFile.txt";

fi1 = new FileInfo(path);

}

Web 窗体设计器生成的代码

private void btnCreate_Click(object sender, System.EventArgs e)

{

if (!fi1.Exists)

{

//创建写入文本文件的流.

using (StreamWriter sw = fi1.CreateText())

{

sw.WriteLine("欢迎阅读");

sw.WriteLine("ASP.NET");

sw.WriteLine("开发答疑300问");

}

//读取创建的文件.

using (StreamReader sr = fi1.OpenText())

{

string s = "";

while ((s = sr.ReadLine()) != null)

{

txtFileInfo.Text += s+"\r\n";

}

private void btnCopy_Click(object sender, System.EventArgs e)

{

try

{

string path2 = Server.MapPath("upedFile") + "\\testFile2.txt";

FileInfo fi2 = new FileInfo(path2);

//确定目标文件是否存在

if(fi2.Exists)

{

fi2.Delete();

}

//复制创建的文件到新的路径.

fi1.CopyTo(path2);

Message.Text =path+"拷贝到"+path2;

}

catch(Exception error)

{

Message.Text = error.ToString();

}

private void btnDelFile_Click(object sender, System.EventArgs e)

{

try

{

string path2 = Server.MapPath("upedFile") + "\\testFile2.txt";

FileInfo fi2 = new FileInfo(path2);

if(fi2.Exists)//如果存在

{

//删除新创建的文件.

fi2.Delete();

Message.Text = "成功的删除了路径"+path2+"中的文件";

}

catch(Exception error)

{

Response.Write(error.ToString());

}

posted on 2006-04-29 11:00 萌芽的叶子阅读(232) 评论(0) 编辑收藏引用所属分类: asp.net

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