如何在同个.aspx页里浏览多幅存储在数据库里的图片 see http://www.fixdown.com/article/article/1027.htm 解决方案 » 免费领取超大流量手机卡,每月29元包185G流量+100分钟通话, 中国电信官方发货 把存储在数据库中的图片根据自己的需要的大小显示出来 --------------------------------------------------------------------------------文件1:showimage.aspx.cs namespace ImageResizing {public class MainDisplay : System.Web.UI.Page {public void Page_Load(System.Object sender, System.EventArgs e) {try {System.Int32 _ImgID = System.Convert.ToInt32(Request.QueryString["ImgID"]);System.Int32 _height = System.Convert.ToInt32(Request.QueryString["height"]);System.Int32 _width = System.Convert.ToInt32(Request.QueryString["width"]);System.Data.SqlClient.SqlConnection Con = new System.Data.SqlClient.SqlConnection( "server=localhost;database=northwind;trusted_connection=true" );System.String SqlCmd = "SELECT * FROM Images WHERE ImageID = @ImageID";System.Data.SqlClient.SqlCommand SqlCmdObj = new System.Data.SqlClient.SqlCommand( SqlCmd, Con );SqlCmdObj.Parameters.Add("@ImageID", System.Data.SqlDbType.Int).Value = _ImgID;Con.Open();System.Data.SqlClient.SqlDataReader SqlReader = SqlCmdObj.ExecuteReader();SqlReader.Read();System.Web.HttpContext.Current.Response.ContentType = "image/pjpeg";System.Drawing.Image _image = System.Drawing.Image.FromStream( new System.IO.MemoryStream( (byte[])SqlReader["Image"] ) );System.Drawing.Image _newimage = _image.GetThumbnailImage( _width, _height, null, new System.IntPtr());_newimage.Save( System.Web.HttpContext.Current.Response.OutputStream, System.Drawing.Imaging.ImageFormat.Jpeg );} catch (System.Exception Ex) {System.Web.HttpContext.Current.Trace.Write(Ex.Message.ToString());}}}}文件2:显示图片之用,把querystring传入<html><body><img src="showimage.aspx?ImgID=202&height=150&width=150"></body></html>相关链接:http://www.aspnextgen.com/tutorials.aspx?tutorialid=176 <img src="showimage.aspx?ImgID=202&height=150&width=150">这边你想放几个就放几个,id不同就可以了。 http://xml.sz.luohuedu.net/xml/ShowDetail.asp?id=2A5DD7C6-A45A-48AB-A2E8-342A29F17506 连接数据库,添加一个datalist控件,在其中添加一个模板列,在该模板列中放入IMG图像组件,然后将其与数据库二进制字段连接起来就可以了! 可不可以给我代码,email:[email protected] 紧急求助 Gridview里的链接按钮不能显示 贵人相助! 开发用户注册页面的问题! 提问 大家在用asp.net 开发各种管理系统时候,一般用没用到 WebService ??? 关于自动生成界面的问题 有没有这样一个插件 Jquary或者asp.net 都行 弱弱问一句 高难度参数传递问题,还有问题 自定义的翻页button, 重新查询后出错 请问怎么让网页过期 没有Imports System.Messaging
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文件1:showimage.aspx.cs
namespace ImageResizing {public class MainDisplay : System.Web.UI.Page {public void Page_Load(System.Object sender, System.EventArgs e) {try {System.Int32 _ImgID = System.Convert.ToInt32(Request.QueryString["ImgID"]);System.Int32 _height = System.Convert.ToInt32(Request.QueryString["height"]);System.Int32 _width = System.Convert.ToInt32(Request.QueryString["width"]);System.Data.SqlClient.SqlConnection Con = new System.Data.SqlClient.SqlConnection( "server=localhost;database=northwind;trusted_connection=true" );System.String SqlCmd = "SELECT * FROM Images WHERE ImageID = @ImageID";System.Data.SqlClient.SqlCommand SqlCmdObj = new System.Data.SqlClient.SqlCommand( SqlCmd, Con );SqlCmdObj.Parameters.Add("@ImageID", System.Data.SqlDbType.Int).Value = _ImgID;Con.Open();System.Data.SqlClient.SqlDataReader SqlReader = SqlCmdObj.ExecuteReader();SqlReader.Read();System.Web.HttpContext.Current.Response.ContentType = "image/pjpeg";System.Drawing.Image _image = System.Drawing.Image.FromStream( new System.IO.MemoryStream( (byte[])SqlReader["Image"] ) );System.Drawing.Image _newimage = _image.GetThumbnailImage( _width, _height, null, new System.IntPtr());_newimage.Save( System.Web.HttpContext.Current.Response.OutputStream, System.Drawing.Imaging.ImageFormat.Jpeg );} catch (System.Exception Ex) {System.Web.HttpContext.Current.Trace.Write(Ex.Message.ToString());}}}}
文件2:显示图片之用,把querystring传入
<html>
<body><img src="showimage.aspx?ImgID=202&height=150&width=150">
</body>
</html>
相关链接:http://www.aspnextgen.com/tutorials.aspx?tutorialid=176
这边你想放几个就放几个,id不同就可以了。