1.建立一aspx页面，html代码
<html> <head> <title>WebForm1</title>
<style type="text/css">.logo { POSITION: absolute }.dek { Z-INDEX: 200; VISIBILITY: hidden; POSITION: absolute }</style>
</head> <body> <Form runat="server"> <DIV class="dek" id="dek"></DIV>
<script language="javascript"> 
Xoffset=-20; Yoffset= 20; var nav,yyy=-1000; var skn=dek.style; document.onmousemove=get_mouse; //ajax var xmlHttp; function createXMLHttpRequest() { if (window.ActiveXObject) { xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
} else if (window.XMLHttpRequest) { xmlHttp = new XMLHttpRequest(); } } function startRequest(id) { createXMLHttpRequest(); xmlHttp.onreadystatechange = handleStateChange; xmlHttp.open("GET", "?ID="+id, true); xmlHttp.send(null); } var content; function handleStateChange() { if(xmlHttp.readyState == 4) { if(xmlHttp.status == 200) { content=xmlHttp.responseText; } } } //tooltip function popup(id) { startRequest(id); yyy=Yoffset; document.all("dek").innerHTML=content; skn.visibility="visible" } function get_mouse(e) { var x=event.x+document.body.scrollLeft; skn.left=x+Xoffset; var y=event.y+document.body.scrollTop; skn.top=y+yyy; } function kill() { yyy=-1000; skn.visibility="hidden"; }</script> <div> <asp:FileUpload ID="FileUpload1" runat="server" /><br>名称:<asp:TextBox ID="txtUserName" runat="server"></asp:TextBox><br> 描述:<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox><br> <asp:Button ID="Button2" runat="server" OnClick="Button2_Click" Text="保存" /> <asp:DataList id="DataList1" BorderColor="black" CellPadding="1" CellSpacing="4" HorizontalAlign="Center" RepeatColumns="4" RepeatLayout="Table" runat="server" ShowFooter="true" ShowHeader="true" width="100%"> <ItemTemplate> <%# DataBinder.Eval(Container.DataItem, "UserName")%><br> <img ID="img1" onmouseover="popup(<%# DataBinder.Eval(Container.DataItem, "UserID")%>);" onmouseout="kill();" src='<%# DataBinder.Eval(Container.DataItem, "Path") %>' height='150'/> </ItemTemplate> </asp:DataList> </div> </Form> </body></html>using System.Data.SqlClient;using System.IO;protected void Page_Load(object sender, EventArgs e) { if (!Page.IsPostBack) { BindData(); } if (ID != "") { GetDescriptionByID(ID); } 
}
property GetDescriptionByID save image BindData GetDataSetif exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[TestImage]') and OBJECTPROPERTY(id, N'IsUserTable') = 1)drop table [dbo].[TestImage]GOCREATE TABLE [dbo].[TestImage] ( [UserID] [int] IDENTITY (1, 1) NOT NULL , [UserName] [nvarchar] (500) COLLATE Chinese_PRC_CI_AS NULL , [Image] [image] NULL , [Path] [nvarchar] (500) COLLATE Chinese_PRC_CI_AS NULL , [Type] [nvarchar] (20) COLLATE SQL_Latin1_General_CP1_CI_AS NULL , [Description] [nvarchar] (2000) COLLATE Chinese_PRC_CI_AS NULL ) ON [PRIMARY] TEXTIMAGE_ON [PRIMARY]GO
