Asp.Net之后台载入JS和CSS

在Asp.Net开发时，用到的JS库、通用的CSS等，在很多页面都会用到，而每次都须要手动引入。相当麻烦。并且有时一旦忘了引用，还得找半天才干找到问题。那有没有什么办法可以一劳永逸的呢？答案是有的。

我们知道Asp.Net是可以通过后台来渲染前端的。所以假设可以在渲染时将所要的js库和css等添入就行了。而为了可以复用，所以须要进行类的继承。我们写一个Page的基类PageBase，代码例如以下。

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Text;

namespace AspNetLoadJsCss.Common
{
    public class PageBase : System.Web.UI.Page
    {       
        public static readonly string SCRIPT_INCLUDE_TEMPLATE = "<script src="{0}" type="text/javascript"></script>
";
        public static readonly string STYLE_INCLUDE_TEMPLATE = "
<link href="{0}" rel="stylesheet" type="text/css"/>
";
        public static readonly string SCRIPT_CONTENT_TEMPLATE = "<script type="text/javascript">{0}</script>
";

        protected void Page_InitComplete(object sender, EventArgs e)
        {          
            LiteralControl viewportControl = new LiteralControl();
            viewportControl.ID = "viewport";
            viewportControl.Text = "
<meta name="viewport" content="width=device-width, initial-scale=1" />";
            this.Header.Controls.AddAt(GetNextControlIndex(this), viewportControl);

            LiteralControl jqueryCssControl = new LiteralControl();
            jqueryCssControl.ID = "/jquery.mobile-1.4.4.min.css";
            jqueryCssControl.Text = String.Format(STYLE_INCLUDE_TEMPLATE, "/css/themes/default/jquery.mobile-1.4.4.min.css");
            this.Header.Controls.AddAt(GetNextControlIndex(this), jqueryCssControl);

            LiteralControl myCssControl = new LiteralControl();
            myCssControl.ID = "/my.css";
            myCssControl.Text = String.Format(STYLE_INCLUDE_TEMPLATE, "/css/my.css");
            this.Header.Controls.AddAt(GetNextControlIndex(this),myCssControl);


            String jsPath = "/js/jquery.js";
            this.ClientScript.RegisterStartupScript(this.GetType(),
                "jquery",
                String.Format(SCRIPT_INCLUDE_TEMPLATE, jsPath),
                false);

            jsPath = "/js/jquery.mobile-1.4.4.