前几天在做一个电子相册，由于在网上所见到的都是用VB.NET写的，所以就用C#写了一个,代码如下:
C#代码部分:
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;
namespace WebApplication10
{
/// <summary>
/// WebForm1 的摘要说明。
/// </summary>
public class WebForm1 : System.Web.UI.Page
{
protected System.Web.UI.WebControls.Image Image1;
protected System.Web.UI.WebControls.DataList DataList1;
protected System.Web.UI.WebControls.HyperLink HyperLink1;
protected System.Web.UI.WebControls.HyperLink HyperLink2;
private void Page_Load(object sender, System.EventArgs e)
{
// 在此处放置用户代码以初始化页面
int index = 0;
DirectoryInfo di = new DirectoryInfo(Server.MapPath("") + "/photo");//设置图片所在的位置
FileInfo[] fi = di.GetFiles("*.jpg");//读取DI目录下的所有JPG文件
this.Image1.ImageUrl = Path.GetFileName(fi[0].Name);//得到图片文件的
this.DataList1.DataSource = fi;
this.DataList1.DataBind();
if(Request.QueryString["N"] != null)
{
index = int.Parse(Request.QueryString["N"]);
}
if(index > 0 )
{
this.HyperLink1.NavigateUrl = "WebForm1.aspx?N=" + (index - 1);
this.Image1.ImageUrl = Path.GetFileName(fi[index - 1].Name);
}
if(index < fi.Length - 1)
{
this.HyperLink2.NavigateUrl = "WebForm1.aspx?N=" + (index + 1);
this.Image1.ImageUrl = Path.GetFileName(fi[index + 1].Name);
}
}
#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.DataList1.ItemDataBound += new System.Web.UI.WebControls.DataListItemEventHandler(this.DataList1_ItemDataBound);
this.Load += new System.EventHandler(this.Page_Load);
}
#endregion
private void DataList1_ItemDataBound(object sender, System.Web.UI.WebControls.DataListItemEventArgs e)
{
if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
{
HyperLink hi = (HyperLink)(e.Item.FindControl("lnkpic"));
hi.Text = Path.GetFileNameWithoutExtension(Convert.ToString(DataBinder.Eval(e.Item.DataItem,"Name"))) +
"(" + Convert.ToInt32(DataBinder.Eval(e.Item.DataItem,"Length")) / 1000 + "KB" + ")";
hi.NavigateUrl = "WebForm1.aspx?N=" + e.Item.ItemIndex;
}
}
}
}
HTML代码部分:
<%@ Page language="c#" Codebehind="WebForm1.aspx.cs" AutoEventWireup="false" Inherits="WebApplication10.WebForm1" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" >
<HTML>
<HEAD>
<title>WebForm1</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">
</HEAD>
<body MS_POSITIONING="GridLayout">
<form id="Form1" method="post" runat="server">
<FONT face="宋体">
<asp:image id="Image1" style="Z-INDEX: 102; LEFT: 232px; POSITION: absolute; TOP: 40px" runat="server"
Width="296px" Height="224px"></asp:image><asp:datalist id="DataList1" style="Z-INDEX: 103; LEFT: 64px; POSITION: absolute; TOP: 328px"
runat="server" Width="784px" Height="56px" RepeatColumns="10" Font-Size="12px">
<ItemTemplate>
<asp:HyperLink id="lnkpic" Runat="server"></asp:HyperLink>
</ItemTemplate>
</asp:datalist><asp:hyperlink id="HyperLink1" style="Z-INDEX: 104; LEFT: 272px; POSITION: absolute; TOP: 304px"
runat="server">上一页</asp:hyperlink><asp:hyperlink id="HyperLink2" style="Z-INDEX: 105; LEFT: 392px; POSITION: absolute; TOP: 304px"
runat="server">下一页</asp:hyperlink></FONT></form>
</body>
</HTML>
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