新手的菜问题,为什么提示BC30451: Name 'data_src' is not declared.
照书上的例子写下来.运行时提示错误,是什么原因啊.在线等..
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<%@ import namespace= "system.data "%>
<%@ import namespace= "system.data.oledb "%>
<script language= "vb " runat= "server ">
sub page_load(sender as object,E as eventArgs)
dim objConnection as OleDbConnection
dim strConnect as String
dim strCommand as String
strConnect = "Provider=Microsoft.Jet.OLEDB.4.0; "
strConnect = "Data Source=E:\Myproject\db "
strConnect = "myaccont.mdb; "
strConnect = "Persist Security Info=False "
data_src.text = strConnect
objConnection = new OleDbConnection(strConnect)
try
objConnection.open()
con_open.text = "connection opened successfully. <br/> "
objConnection.Close()
con_close.text = "connection closed. <br/> "
catch e as exception
con_open.text= "connection failed to open. <br/> "
con_close.text = e.ToString()
end try
end sub
</script>
<html xmlns= "http://www.w3.org/1999/xhtml ">
<head>
<meta http-equiv= "Content-Type " content= "text/html; charset=gb2312 " />
<title> 无标题文档 </title>
</head>
<body>
<h4> Testing the data connection
<asp:Label id= "con_src " runat= "server " /> </h4>
<asp:Label ID= "con_open " runat= "server "/>
<asp:Label ID= "con_clse " runat= "server "/>
</body>
</html>
[解决办法]
<asp:Label id= "con_src " runat= "server " /> 改成 <asp:Label id= "data_src " runat= "server " />
