服务器端 如何操作指定IFRAME的SRC指向？在线等待！
HTML:
<html xmlns= "http://www.w3.org/1999/xhtml " >
<head runat= "server ">
<title> 无标题页 </title>
</head>
<body bottommargin= "0 " leftmargin= "0 " rightmargin= "0 " topmargin= "0 ">
<form id= "form1 " runat= "server ">
<iframe id= "top " src= "../Top.aspx " height= "90 " scrolling= "no " width= "100% "> </iframe>
<iframe id= "mainFrame " height= "450 " scrolling= "auto " width= "100% "> </iframe>
</form>
</body>
</html>
CS:
服务器端组合出如下的URL，ConfigurationManager.AppSettings[ "urlDirectory "] + this.Request.QueryString[ "url "].ToString() 。想控制 <iframe id= "mainFrame "转到上面组合出的URL，该如何实现？
[解决办法]
1.可以加个runat= "server "然后this.top.Attibute[ "src "] = "... "或 <iframe id= "top " src= ' <%=变量%> '
[解决办法]
例子： IFRAME1.Attributes.Add( "src ", "RateDistribute.aspx?ServiceRateID= " + nRetID + " ");
