ASP.NET2.0 遍曆檔案夾下所有圖片

來源:互聯網
上載者:User
asp.net|遍曆|遍曆檔案 1.以下目錄有若干圖片(都是大圖片)

2.在頁面展現效果圖

3.代碼

後台代碼
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;
using System.Runtime.Remoting;
using System.Runtime.Remoting.Lifetime;
using System.IO;

public partial class _Default : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        DirectoryInfo imagesfile = new DirectoryInfo(Server.MapPath("./images"));
        DataList1.DataSource = imagesfile.GetFiles("*.jpg");
        DataList1.DataBind();
       

    }
   
}

前台代碼:
<%@ 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>遍曆檔案夾下所有圖片 http://blog.csdn.net/21aspnet 清清月兒</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
         <asp:DataList ID="DataList1" runat="server" RepeatColumns="3">
            <ItemTemplate>
                <asp:image ID="Image1" runat="server" width="120" ImageUrl='<%#"images/" +Eval("Name")%>'/>
            </ItemTemplate>
        </asp:DataList></div>
    </form>
</body>
</html>

說明:如果大家想產生真正的縮圖就要在另個頁面產生
ImageUrl='<%#"AAA.aspx 取得產生的結果即可。可參考以下代碼:

Example: SimpleImageHandler.ashx
<%@ WebHandler Language="C#" Class="SimpleImageHandler" %>

using System;
using System.Drawing;
using System.Drawing.Imaging;
using System.IO;
using System.Web;
using System.Web.Caching;

public class SimpleImageHandler : IHttpHandler {

    public void ProcessRequest(HttpContext context)
    {
        // Load image.
        Bitmap bmap = new Bitmap(@"C:\Temp\TEST.JPG");

        // You could do something here, e.g. add some texts to image.
        
        // Send back image.
        context.Response.ContentType = "image/jpeg";
        context.Response.BufferOutput = false;
        bmap.Save(context.Response.OutputStream, ImageFormat.Jpeg);
    }

    public bool IsReusable
    {
        get
        {
            return false;
        }
    }

}




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