webform2.aspx 文件:
<%@ page language="vb" autoeventwireup="false" codebehind="webform2.aspx.vb" inherits="house.webform2"%>
<!doctype html public "-//w3c//dtd html 4.0 transitional//en">
<html>
<head>
<title>webform2</title>
<meta name="generator" content="microsoft visual studio .net 7.1">
<meta name="code_language" content="visual basic .net 7.1">
<meta name="vs_defaultclientscript" content="javascript">
<meta name="vs_targetschema" content="http://schemas.microsoft.com/intellisense/ie5">
</head>
<body ms_positioning="gridlayout">
<form id="form1" method="post" runat="server">
<font face="宋體">
<asp:datagrid id="datagrid1"
runat="server" width="272px" height="350px">
<columns>
<asp:templatecolumn>
<itemtemplate>
<asp:image id="image1" runat="server" width="96px" imageurl='<% #databinder.eval(container,"dataitem.foto") %>'>
</asp:image>
</itemtemplate>
</asp:templatecolumn>
</columns>
</asp:datagrid></font>
</form>
</body>
</html>
webform2.aspx.vb 文件
public class webform2
inherits system.web.ui.page
#region " web 窗體設計器生成的代碼 "
'該調用是 web 窗體設計器所必需的。
<system.diagnostics.debuggerstepthrough()> private sub initializecomponent()
end sub
protected withevents datagrid1 as system.web.ui.webcontrols.datagrid
'注意: 以下占位符聲明是 web 窗體設計器所必需的。
'不要刪除或移動它。
private designerplaceholderdeclaration as system.object
private sub page_init(byval sender as system.object, byval e as system.eventargs) handles mybase.init
'codegen: 此方法調用是 web 窗體設計器所必需的
'不要使用代碼編輯器修改它。
initializecomponent()
end sub
#end region
private sub page_load(byval sender as system.object, byval e as system.eventargs) handles mybase.load
'在此處放置初始化頁的用戶代碼
dim sql as string = " select * from userlist "
dim dataset1 as new dataset
dataset1 = new dataset("dataset1")
dim connectionstring as string
connectionstring = "jet oledb:global partial bulk ops=2;jet oledb:registry path=;jet oledb:database l" & _
"ocking mode=1;data source=""labrecord.mdb"";jet oledb:engine type=5;provider=""mic" & _
"rosoft.jet.oledb.4.0"";jet oledb:system database=;jet oledb:sfp=false;persist sec" & _
"urity info=false;extended properties=;mode=share deny none;jet oledb:encrypt dat" & _
"abase=false;jet oledb:create system database=false;jet oledb:don't copy locale o" & _
"n compact=false;jet oledb:compact without replica repair=false;user id=admin;jet" & _
" oledb:global bulk transactions=1"
dim oledbconnection1 as new oledb.oledbconnection(connectionstring)
dim oledbdataadapter1 as new oledb.oledbdataadapter(sql, oledbconnection1)
oledbdataadapter1.fill(dataset1, "userlist")
oledbdataadapter1 = nothing
datagrid1.datasource = dataset1
datagrid1.databind()
oledbconnection1.close()
oledbconnection1 = nothing
end sub
end class
綜述與總結:
以前不知道如何在datagrid中如何顯示圖片的時候,在網上搜查相關技術資料的時候,很多.但是
往往寫得很多,很雜亂.甚至把人引入誤區.
下面我用簡要的話來說明這個主題的關鍵: 首先要在一個頁面(如本例中的webform2.aspx )中添加一個datagrid1然后給datagrid1添加一個模板列.然后再往這個模板列中加入一個image控件. 最關鍵的地方來了,那就是
<asp:templatecolumn>
<itemtemplate>
<asp:image id="image1" runat="server" width="96px" imageurl='<% #databinder.eval(container,"dataitem.foto") %>'>
</asp:image>
</itemtemplate>
</asp:templatecolumn>
中藍色的部分.即將圖片的路徑與 userlist 中的 foto字段綁定. 至于 webform2.aspx.vb 文件 的作用是將
數據庫中的表userlist 的數據與datagrid1綁定.
新聞熱點
疑難解答