Asp.net MVC Preview 4 中自定义Jquery的HtmlHelper扩展

     <% = Html.JToggle( " 显示/隐藏 " , " d1 " ) %>
    
     < div  id ="d1"  style ="background: green" >
        天之道 损有余 而补不足 < br  />
        是故虚胜实 不足胜有余 < br  />
     </ div >

   <% = Html.JToggle( " 显示/隐藏 " , " #d1 " ) %>
    
     < div  id ="d1"  style ="background: green" >
        天之道 损有余 而补不足 < br  />
        是故虚胜实 不足胜有余 < br  />
     </ div >

using  System;
using  System.Data;
using  System.Configuration;
using  System.Linq;
using  System.Web;
using  System.Web.Security;
using  System.Web.UI;
using  System.Web.UI.HtmlControls;
using  System.Web.UI.WebControls;
using  System.Web.UI.WebControls.WebParts;
using  System.Xml.Linq;
using  System.Web.Mvc;
using  System.Globalization;
using  System.Collections.Generic;
using  System.Text;
using  System.Web.Routing;

namespace  System.Web.Mvc {
     ///   <summary>
     ///   http://chsword.cnblogs.com
     ///  重典
     ///  QQ:77298666
     ///   </summary>
     static   public   class  AjaxJquery {
         ///   <summary>
         ///  就是一个元素，原来显示就让它隐藏，原来隐藏就让他显示
         ///   </summary>
         ///   <param name="a"></param>
         ///   <param name="linkText"></param>
         ///   <param name="ToggleID"></param>
         ///   <returns></returns>
         static   public  String JToggle( this  HtmlHelper a,  string  linkText, String ToggleID)  {
             return  a.JToggle( linkText, ToggleID,  null );
        }
         ///   <summary>
         ///  就是一个元素，原来显示就让它隐藏，原来隐藏就让他显示
         ///   </summary>
         ///   <param name="a"></param>
         ///   <param name="linkText"></param>
         ///   <param name="ToggleID"></param>
         ///   <param name="htmlAttributes"></param>
         ///   <returns></returns>
         static   public  String JToggle( this  HtmlHelper a,  string  linkText, String ToggleID,  object  htmlAttributes) {
             string  linkFormat  =   " <a href=\ " { 0 }\ "  {1} {3}>{2}</a> " ;
             string  atts  =   string .Empty;
             string  ajaxs  =   string .Empty;
             if  (htmlAttributes  !=   null ) // 由object 序列成key="value" 这样的属性模式
                atts  =  AjaxJquery.ConvertObjectToAttributeList(htmlAttributes);
            
            ajaxs  =   string .Format( " onclick=\ " $( ' {0} ' ).toggle();\ "   " ,
                ToggleID[ 0 ]  ==   ' # '   ?  ToggleID :  " # "   +  ToggleID // Jquery里id不是要#嘛得验一下个人的那啥不同啊
                );
             string  result  =   string .Format(CultureInfo.InvariantCulture, linkFormat,  " # " , atts, a.Encode(linkText), ajaxs);
             return  result;
        }
     ///   <summary>
         ///  生成一个可以加载地址的Ajax连接
     ///   </summary>
     ///   <typeparam name="T"></typeparam>
     ///   <param name="a"></param>
     ///   <param name="action"></param>
     ///   <param name="linkText"></param>
     ///   <param name="ajaxoptions"></param>
     ///   <returns></returns>
         static   public   string  JLoadLink < T > ( this  HtmlHelper a, System.Linq.Expressions.Expression < Action < T >>  action,  string  linkText, AjaxOptions ajaxoptions)  where  T : Controller {
             return  a.JLoadLink < T > (action, linkText,  null , ajaxoptions);
        }
         ///   <summary>
         ///  生成一个可以加载地址的Ajax连接
         ///   </summary>
         ///   <typeparam name="T"></typeparam>
         ///   <param name="a"></param>
         ///   <param name="action"></param>
         ///   <param name="linkText"></param>
         ///   <param name="htmlAttributes"></param>
         ///   <param name="ajaxoptions"></param>
         ///   <returns></returns>
         static   public   string  JLoadLink < T > ( this  HtmlHelper a, System.Linq.Expressions.Expression < Action < T >>  action,  string  linkText,  object  htmlAttributes, AjaxOptions ajaxoptions)  where  T : Controller {
             string  linkFormat  =   " <a href=\ " { 0 }\ "  {1} {3}>{2}</a> " ;
             string  atts  =   string .Empty;
             string  ajaxs  =   string .Empty;
             if  (htmlAttributes  !=   null )
                atts  =  AjaxJquery.ConvertObjectToAttributeList(htmlAttributes);
             string  link  =  LinkBuilder.BuildUrlFromExpression < T > (a.ViewContext, action);
             // * */a.BuildUrlFromExpression<T>(action);
             if  (ajaxoptions  !=   null ) {
                ajaxs  =   string .Format( " onclick=\ " { 0 }$ActionLink( ' {1} ' , ' {2} ' ); return   false ;\ "   " ,
                    ajaxoptions.OnBegin, // $ActionLink这个方法定义在framework.js里，可以看一下
                    link,
ajaxoptions.UpdateTargetId
                    );
            }

             string  result  =   string .Format(CultureInfo.InvariantCulture, linkFormat,  " # " , atts, a.Encode(linkText), ajaxs);
             return  result;
        }
         ///   <summary>
         ///  从MVC工程里搞出来的，原来有程序集保护用不了。
         ///   </summary>
         ///   <param name="value"></param>
         ///   <returns></returns>
         public   static   string  ConvertObjectToAttributeList( object  value) {
            StringBuilder sb  =   new  StringBuilder();
             if  (value  !=   null ) {
                IDictionary < string ,  object >  d  =  value  as  IDictionary < string ,  object > ;
                 if  (d  ==   null ) {
                    d  =   new  RouteValueDictionary(value);
                }

                 string  resultFormat  =   " {0}=\ " { 1 }\ "   " ;
                 foreach  ( string  attribute  in  d.Keys) {
                     object  thisValue  =  d[attribute];
                     if  (d[attribute]  is   bool ) {
                        thisValue  =  d[attribute].ToString().ToLowerInvariant();
                    }
                    sb.AppendFormat(resultFormat, attribute.Replace( " _ " ,  "" ).ToLowerInvariant(), thisValue);
                }
            }
             return  sb.ToString();
        }
    }
}