请问怎样用c#.net做一个相册？我在google里搜索过，但是代码看不懂。谁帮我解释一下，或者重新帮我写一下，希望注释详细些。

[caoxiaoxiong]

以下是网上搜索的代码：
〈%@ Page language="c#" Codebehind="filesystem.aspx.cs" AutoEventWireup="false" Inherits="WebShop.filesystem" %>
〈!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" >
〈HTML>
〈HEAD>
〈title>filesystem〈/title>
〈meta content="Microsoft Visual Studio .NET 7.1" name="GENERATOR">
〈meta content="C#" name="CODE_LANGUAGE">
〈meta content="JavaScript" name="vs_defaultClientScript">
〈meta content="http://schemas.microsoft.com/intellisense/ie5" name="vs_targetSchema">
〈LINK href="CssStyle.css" type="text/css" rel="stylesheet">
〈form id="Form1" method="post" runat="server">
〈/HEAD>
〈body MS_POSITIONING="GridLayout">
〈FONT face="宋体">
〈table cellSpacing="1" cellPadding="0" width="777" align="center" bgColor="#336600" border="0">
〈tr>
〈td bgColor="#08498c" colSpan="3">〈IMG src="images/FileSystemBaner.gif">〈/td>
〈/tr>
〈tr>
〈td width="170" bgColor="#e3e3e3" rowSpan="2">
〈asp:linkbutton id="LinkButton1" runat="server">后退〈/asp:linkbutton>〈/td>
〈td width="604" bgColor="#efefef" colSpan="2">
〈asp:datalist id="DataList1" runat="server" RepeatColumns="4" RepeatDirection="Horizontal" DataKeyField="Name"
Width="604">
〈ItemTemplate>
〈table width="150" align="center">
〈tr>
〈td align="center" width="10">〈/td>
〈td align="left" width="140">〈%#DataBinder.Eval(Container.DataItem,"Image")%>
〈/td>
〈/tr>
〈tr>
〈td width="10" align="right">
〈asp:CheckBox ID="checkBox1" Runat="server" />〈/td>
〈td width="140" align="left">〈font face="宋体">〈%#DataBinder.Eval(Container.DataItem,"Name")%>〈/font>〈/td>
〈/tr>
〈/table>
〈/ItemTemplate>
〈/asp:datalist>〈/td>
〈/tr>
〈tr>
〈td align="right" bgColor="#efefef" colSpan="2">〈asp:button id="Button3" runat="server" Text="删除选中项">〈/asp:button>
〈input id="fileFeild1" type="file" name="fileFeild1" runat="server">
〈asp:button id="Button1" runat="server" Text="确定上传">〈/asp:button>〈br>
〈asp:textbox id="TextBox1" runat="server">〈/asp:textbox>
〈asp:button id="Button2" runat="server" Text="创建目录">〈/asp:button>〈/td>
〈/tr>
〈tr>
〈td bgColor="#888888" colSpan="3">〈span class="STYLE1">〈asp:label id="Label2" runat="server" ForeColor="White"> 当前所在位置：〈/asp:label>〈SPAN class="STYLE1">〈asp:label id="Label1" runat="server" ForeColor="White" Width="87px">〈/asp:label>〈/SPAN>〈/span>〈/td>
〈/tr>
〈/table>
〈/FONT>〈/FORM>
〈/body>
〈/HTML>



using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.IO;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;

namespace WebShop
{
/// 〈summary>
/// filesystem 的摘要说明。
/// 〈/summary>
public class filesystem : System.Web.UI.Page
{
protected System.Web.UI.WebControls.LinkButton LinkButton1;
protected System.Web.UI.WebControls.DataList DataList1;
protected System.Web.UI.WebControls.Button Button3;
protected System.Web.UI.WebControls.Button Button1;
protected System.Web.UI.WebControls.TextBox TextBox1;
protected System.Web.UI.WebControls.Button Button2;
protected System.Web.UI.WebControls.Label Label2;
protected System.Web.UI.WebControls.Label Label1;
protected System.Web.UI.HtmlControls.HtmlInputFile fileFeild1;

private void Page_Load(object sender, System.EventArgs e)
{
if(!IsPostBack)
{
Bind();
}
}

private void Bind()
{
string initpath="";
if(Request["path"]==null)
{
initpath=Server.MapPath("FileSystem");
}
else
{
initpath=Request["path"];
}
this.Label1.Text=initpath;

DataTable dt=new DataTable();
DataColumn dc0=new DataColumn("Image",System.Type.GetType("System.String"));
dt.Columns.Add(dc0);
DataColumn dc1=new DataColumn("Name",System.Type.GetType("System.String"));
dt.Columns.Add(dc1);

DirectoryInfo di=new DirectoryInfo(this.Label1.Text);
DirectoryInfo[] dis=di.GetDirectories();
foreach(DirectoryInfo d in dis)
{
DataRow dr=dt.NewRow();
dr[0]="〈a href='filesystem.aspx?path="+HttpUtility.UrlEncode(d.FullName,System.Text.Encoding.UTF8)+"'>〈img src='images/folder.gif' border=0/>〈/a>";
dr[1]=d.Name;
dt.Rows.Add(dr);
}

FileInfo[] fis=di.GetFiles();
foreach(FileInfo f in fis)
{
string ex=f.Extension.ToLower();
if(ex==".jpg" || ex==".jpeg" || ex==".gif" || ex==".png" || ex==".bmp")
{
string fullname=f.FullName;
string urlpath=fullname.Substring(fullname.IndexOf("FileSystem"));
string url=HttpUtility.UrlEncode(urlpath,System.Text.Encoding.UTF8);
DataRow dr=dt.NewRow();
dr[0]="〈a href='"+url+"' target='_blank'>〈img src='"+url+"' border=0 width=100 height=128/>〈/a>";
dr[1]=f.Name;
dt.Rows.Add(dr);
}
}

this.DataList1.DataSource=dt;
this.DataList1.DataBind();
}

#region Web 窗体设计器生成的代码
override protected void OnInit(EventArgs e)
{
//
// CODEGEN: 该调用是 ASP.NET Web 窗体设计器所必需的。
//
InitializeComponent();
base.OnInit(e);
}

/// 〈summary>
/// 设计器支持所需的方法 - 不要使用代码编辑器修改
/// 此方法的内容。
/// 〈/summary>
private void InitializeComponent()
{
this.LinkButton1.Click += new System.EventHandler(this.LinkButton1_Click);
this.Button3.Click += new System.EventHandler(this.Button3_Click);
this.Button1.Click += new System.EventHandler(this.Button1_Click);
this.Button2.Click += new System.EventHandler(this.Button2_Click);
this.Load += new System.EventHandler(this.Page_Load);

}
#endregion

private void LinkButton1_Click(object sender, System.EventArgs e)
{
string Parent=Directory.GetParent(this.Label1.Text).ToString();
if(Parent.IndexOf("FileSystem")>-1)
{
Response.Redirect("filesystem.aspx?path="+Parent);
}
else
{
return;
}
}

private void Button1_Click(object sender, System.EventArgs e)
{
HttpPostedFile hpf=this.fileFeild1.PostedFile;
string ClientPath=hpf.FileName;
string filename=Path.GetFileName(ClientPath);
string ex=Path.GetExtension(filename);
if(ex==".jpg" || ex==".jpeg" || ex==".gif" || ex==".png" || ex==".bmp")
{
string SavePath=this.Label1.Text+"\\"+filename;
hpf.SaveAs(SavePath);
Bind();
}
else
{
Response.Write(Tools.GetAlertJS("所上传的图片格式不正确！"));
return;
}
}

private void Button2_Click(object sender, System.EventArgs e)
{
string filename=this.TextBox1.Text;
Directory.CreateDirectory(this.Label1.Text+"\\"+filename);
Bind();
}

private void Button3_Click(object sender, System.EventArgs e)
{
for(int i=0;i〈this.DataList1.Items.Count;i++)
{
if(((CheckBox)this.DataList1.Items[i].FindControl("CheckBox1")).Checked)
{
int index=this.DataList1.Items[i].ItemIndex;
string filePath=this.Label1.Text+"\\"+this.DataList1.DataKeys[index].ToString();
if(Directory.Exists(filePath))
{
Directory.Delete(filePath,true);
}
if(File.Exists(filePath))
{
File.Delete(filePath);
}
Bind();
}
}
}
}
}

[gaocumt]

LZ，我正好闲着没事做，帮你写注释。。。呵呵。

using System; 
using System.Collections; 
using System.ComponentModel; 
using System.Data; 
using System.IO; 
using System.Drawing; 
using System.Web; 
using System.Web.SessionState; 
using System.Web.UI; 
using System.Web.UI.WebControls; 
using System.Web.UI.HtmlControls; 

namespace WebShop 
{ 
/// 〈summary> 
/// filesystem 的摘要说明。 
/// 〈/summary> 
public class filesystem : System.Web.UI.Page 
{ 
protected System.Web.UI.WebControls.LinkButton LinkButton1; 
protected System.Web.UI.WebControls.DataList DataList1; 
protected System.Web.UI.WebControls.Button Button3; 
protected System.Web.UI.WebControls.Button Button1; 
protected System.Web.UI.WebControls.TextBox TextBox1; 
protected System.Web.UI.WebControls.Button Button2; 
protected System.Web.UI.WebControls.Label Label2; 
protected System.Web.UI.WebControls.Label Label1; 
protected System.Web.UI.HtmlControls.HtmlInputFile fileFeild1; 

private void Page_Load(object sender, System.EventArgs e) 
{ 
if(!IsPostBack) 
{ 
Bind(); 
} 
} 

private void Bind() 
{
    //接收传过来的文件路径，为空则 初始化为目录下的“FileSystem”文件夹
    //不为空，接受值，并用label1显示
string initpath=""; 
if(Request["path"]==null) 
{ 
initpath=Server.MapPath("FileSystem"); 
} 
else 
{ 
initpath=Request["path"]; 
} 
this.Label1.Text=initpath; 

DataTable dt=new DataTable();
// 动态为DT添加String类型的两列，列名分别为Image和Name
DataColumn dc0=new DataColumn("Image",System.Type.GetType("System.String")); 
dt.Columns.Add(dc0); 
DataColumn dc1=new DataColumn("Name",System.Type.GetType("System.String")); 
dt.Columns.Add(dc1); 

DirectoryInfo di=new DirectoryInfo(this.Label1.Text);
//遍历文件夹 
DirectoryInfo[] dis=di.GetDirectories(); 
foreach(DirectoryInfo d in dis) 
{ 
    //DT动态添加行，每一个文件夹一行
    //第一列是像册图标和路径，第二列是像册名
DataRow dr=dt.NewRow(); 
dr[0]="〈a href='filesystem.aspx?path="+HttpUtility.UrlEncode(d.FullName,System.Text.Encoding.UTF8)+"'>〈img src='images/folder.gif' border=0/>〈/a>"; 
dr[1]=d.Name; 
dt.Rows.Add(dr); 
} 
// 和上面一样，不过这次遍历的是文件
FileInfo[] fis=di.GetFiles(); 
foreach(FileInfo f in fis) 
{ 
    //获取文件的扩展名，转为小写
string ex=f.Extension.ToLower(); 
    //如果文件是图片类型
if(ex==".jpg" || ex==".jpeg" || ex==".gif" || ex==".png" || ex==".bmp") 
{ 
string fullname=f.FullName; //获取长路径
string urlpath = fullname.Substring(fullname.IndexOf("FileSystem"));  //截取"FileSystem"之后的路径
string url=HttpUtility.UrlEncode(urlpath,System.Text.Encoding.UTF8); //将上面路径URL编码
DataRow dr=dt.NewRow();  
dr[0]="〈a href='"+url+"' target='_blank'>〈img src='"+url+"' border=0 width=100 height=128/>〈/a>"; 
dr[1]=f.Name; 
dt.Rows.Add(dr); 
} 
} 
 //DATALIST1绑定数据源
this.DataList1.DataSource=dt;  
this.DataList1.DataBind(); 
} 

#region Web 窗体设计器生成的代码 
override protected void OnInit(EventArgs e) 
{ 
// 
// CODEGEN: 该调用是 ASP.NET Web 窗体设计器所必需的。 
// 
InitializeComponent(); 
base.OnInit(e); 
} 

/// 〈summary> 
/// 设计器支持所需的方法 - 不要使用代码编辑器修改 
/// 此方法的内容。 
/// 〈/summary> 
private void InitializeComponent() 
{ 
this.LinkButton1.Click += new System.EventHandler(this.LinkButton1_Click); 
this.Button3.Click += new System.EventHandler(this.Button3_Click); 
this.Button1.Click += new System.EventHandler(this.Button1_Click); 
this.Button2.Click += new System.EventHandler(this.Button2_Click); 
this.Load += new System.EventHandler(this.Page_Load); 

} 
#endregion 

private void LinkButton1_Click(object sender, System.EventArgs e)
{ //检索this.Label1.Text显示目录的父目录
string Parent=Directory.GetParent(this.Label1.Text).ToString(); 
if(Parent.IndexOf("FileSystem")>-1) 
{ 
    //如果父目录包含FileSystem，URL定位到Parent路径
Response.Redirect("filesystem.aspx?path="+Parent); 
} 
else 
{ //否则 退出
return; 
} 
} 
//==============上传图象============================//
private void Button1_Click(object sender, System.EventArgs e)
{ //获取上传图片的路径
HttpPostedFile hpf=this.fileFeild1.PostedFile; 
string ClientPath=hpf.FileName; 
string filename=Path.GetFileName(ClientPath); 
    //获取文件扩展名
string ex=Path.GetExtension(filename); 
    //验证上传的文件是否为图片格式，图片则上传到服务器
if(ex==".jpg" || ex==".jpeg" || ex==".gif" || ex==".png" || ex==".bmp") 
{ 
string SavePath=this.Label1.Text+"\\"+filename; 
hpf.SaveAs(SavePath); 
Bind(); 
} 
else 
{ //否则，提示
Response.Write(Tools.GetAlertJS("所上传的图片格式不正确！")); 
return; 
} 
} 
 //===============创建新像册=============================//
private void Button2_Click(object sender, System.EventArgs e) 
{ 
string filename=this.TextBox1.Text; 
Directory.CreateDirectory(this.Label1.Text+"\\"+filename); 
Bind(); 
}

//=================删除选中的像册或者图片==================//
private void Button3_Click(object sender, System.EventArgs e) 
{ 

    //遍历datalist1
for(int i=0;i<this.DataList1.Items.Count;i++) 
{  //在datalist中查找名为Checkbox1的控件
    //如果查找到的控件为选中状态，删除选中的像册或者图片，
if(((CheckBox)this.DataList1.Items[i].FindControl("CheckBox1")).Checked) 
{ 
int index=this.DataList1.Items[i].ItemIndex; 
string filePath=this.Label1.Text+"\\"+this.DataList1.DataKeys[index].ToString(); 
if(Directory.Exists(filePath)) 
{ 
Directory.Delete(filePath,true); //"true" 意思是删除文件夹里所有的图片和文件夹
} 
if(File.Exists(filePath)) 
{ 
File.Delete(filePath); 
} 
Bind(); 
} 
} 
} 
} 
} 

[jxxx2967]

不懂，顶一下