ASP. NET2.0 traverses all images in the folder [original by month]

Last Update:2018-12-05 Source: Internet

Author: User

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ASP. NET2.0 traverses all images in the folder

Author: qingyueer

Home page:Http://blog.csdn.net/21aspnet/Time: 2007.4.4

1. The following directory contains several images (all of which are big images)

2. display on the page

3. Code

Background code
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 ();

}

}

Front-end code:
<% @ 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> traverse all the pictures under the folder http://blog.csdn.net/21aspnet clear moon </title>
</Head>
<Body>
<Form ID = "form1" runat = "server">
<Div>
& Nbsp; <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>

Note: If you want to generate a real thumbnail, it must be generated on another page.
Imageurl = '<% # "AAA. aspx: Obtain the generated result. Refer to the following code:

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 cocould 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;
}
}

}

This article is an English version of an article which is originally in the Chinese language on aliyun.com and is provided for information purposes only. This website makes no representation or warranty of any kind, either expressed or implied, as to the accuracy, completeness ownership or reliability of the article or any translations thereof. If you have any concerns or complaints relating to the article, please send an email, providing a detailed description of the concern or complaint, to info-contact@alibabacloud.com. A staff member will contact you within 5 working days. Once verified, infringing content will be removed immediately.

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ASP. NET2.0 traverses all images in the folder [original by month]

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