自从用了 ASP.Net MVC后就喜欢上了它 ，因为MVC对服务器控件的依赖大大减少，它生成的HTML页面就比WebForm清爽多了，加载速度有了明显的改善。
但对于页面中内嵌script，还是不能彻底的避免，如：
<script type="text/javascript" language="javascript">
//<!--
function DepositPage() {
// 这是一个第3方的WebControl,由于是服务器控件，受MasterPage影响,它的客户端ID并不是确定的。
this.ctrlRadGrid = "#<%= ctrlRadGrid.ClientID %>";
// 这是一段又臭又长的JSON，从Modal中传递过来
this.accounts = <%= Modal.JSON %>;
// .............................
}
new DepositPage();
// -->
</script>
是否有一种方法可以将这段JS不内嵌在HTML中，使用<script src="">标记从外部文件加载?
答案是肯定的，通过自定义WebControl完全可以实现，有如下WebControl
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Text.RegularExpressions;
using System.IO;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
[ParseChildren(false)]
public class ExternalJavascriptControl : WebControl
{
private string SafeFilenamePrefix
{
get
{
return Regex.Replace( this.ClientID
, "(\\\\|\\/|\\:|\\*|\\?|\\\"|\\<|\\>|\\|)"
, "_"
, RegexOptions.ECMAScript | RegexOptions.Compiled
);
}
}
protected override void Render(HtmlTextWriter writer)
{
if (!Visible)
return;
try
{
using (StringWriter sw = new StringWriter())
{
using (HtmlTextWriter htw = new HtmlTextWriter(sw))
{
base.Render(htw);
// get the rendered content
string rendered = sw.ToString();
// remove the script tag if exist
rendered = Regex.Replace(rendered
, @"(<[\s\/]*script\b[^>]*>)"
, string.Empty
, RegexOptions.ECMAScript | RegexOptions.Compiled | RegexOptions.IgnoreCase
);
// get the file pa
1. web.config
<connectionStrings>
<add name ="myconn" connectionString="Data Source=who\SQLEXPRESS; Initial Catalog=dbname;Integrated Security=True;" providerName="System.Data.SqlClient"/>
</connectionStrings>
2.
string htmlPath = "D:\\htmlFiles";
......
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta NAME="Copyright" CONTENT="">
<meta http-equiv="Content-Type" content="text/html; charset=u ......
