آموزش پلاگین Scrollspy در بوت استرپ

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آموزش پلاگین Scrollspy در بوت استرپ

در این درس از مجموعه آموزش برنامه نویسی سایت سورس باران، به آموزش پلاگین Scrollspy در بوت استرپ خواهیم پرداخت.

پلاگین Scrollspy (به روزرسانی خودکار nav) به شما امکان می دهد بر اساس موقعیت پیمایش، بخشهایی از صفحه را هدف قرار دهید. در اجرای اصلی آن، همانطور که پیمایش می کنید، می توانید کلاسهای active. را بر اساس موقعیت پیمایش به نوار navbar اضافه کنید.

اگر می خواهید این قابلیت پلاگین را به صورت جداگانه وارد کنید ، به scrollspy.js نیاز خواهید داشت. در غیر این صورت ، همانطور که در فصل بررسی اجمالی افزونه های بوت استرپ ذکر شده است ، می توانید bootstrap.js یا minst bootstrap.min.js را در آن بگنجانید.

موارد استفاده

شما می توانید رفتار scrollspy را به ناوبری بالای صفحه خود اضافه کنید –

از طریق مشخصه های data-spy = “scroll”را به عنصری که می خواهید از آن جاسوسی کنید اضافه کنید. سپس ویژگی ID-target را با شناسه یا کلاس عنصر والد هر مولفه nav. بوت استرپ اضافه کنید. برای کار کردن، شما باید در بدنه صفحه عناصری داشته باشید که دارای شناسه های منطبق بر پیوندهای مورد جاسوسی شما باشند.

&lt;body data-spy = "scroll" data-target = ".navbar-example"&gt;
   ...
   &lt;div class = "navbar-example"&gt;
      &lt;ul class = "nav nav-tabs"&gt;
         ...
      &lt;/ul&gt;
   &lt;/div&gt;
   ...
&lt;/body&gt;

...

...

</ul>

</div>

...

</body>

می توانید به جای استفاده از مشخصه های داده ، scrollspy را با جاوا اسکریپت فراخوانی کنید با انتخاب عنصری برای جاسوسی و سپس فراخوانی تابع ()scrollspy.

$('body').scrollspy({ target: '.navbar-example' })

1	$('body').scrollspy({ target: '.navbar-example' })

مثال

مثال زیر استفاده از افزونه scrollspy از طریق ویژگی های داده را نشان می دهد –

&lt;nav id = "navbar-example" class = "navbar navbar-default navbar-static" role = "navigation"&gt;
   
   &lt;div class = "navbar-header"&gt;
      &lt;button class = "navbar-toggle" type = "button" data-toggle = "collapse" 
         data-target = ".bs-js-navbar-scrollspy"&gt;
         &lt;span class = "sr-only"&gt;Toggle navigation&lt;/span&gt;
         &lt;span class = "icon-bar"&gt;&lt;/span&gt;
         &lt;span class = "icon-bar"&gt;&lt;/span&gt;
         &lt;span class = "icon-bar"&gt;&lt;/span&gt;
      &lt;/button&gt;
        
      &lt;a class = "navbar-brand" href = "#"&gt;Tutorial Name&lt;/a&gt;
   &lt;/div&gt;
   
   &lt;div class = "collapse navbar-collapse bs-js-navbar-scrollspy"&gt;
      &lt;ul class = "nav navbar-nav"&gt;
         &lt;li&gt;&lt;a href = "#ios"&gt;iOS&lt;/a&gt;&lt;/li&gt;
         &lt;li&gt;&lt;a href = "#svn"&gt;SVN&lt;/a&gt;&lt;/li&gt;
         
         &lt;li class = "dropdown"&gt;
            &lt;a href = "#" id = "navbarDrop1" class = "dropdown-toggle" data-toggle = "dropdown"&gt;
               Java
               &lt;b class = "caret"&gt;&lt;/b&gt;
            &lt;/a&gt;
            
            &lt;ul class = "dropdown-menu" role = "menu" aria-labelledby = "navbarDrop1"&gt;
               &lt;li&gt;&lt;a href = "#jmeter" tabindex = "-1"&gt;jmeter&lt;/a&gt;&lt;/li&gt;
               &lt;li&gt;&lt;a href = "#ejb" tabindex = "-1"&gt;ejb&lt;/a&gt;&lt;/li&gt;
               
               &lt;li class = "divider"&gt;&lt;/li&gt;
               &lt;li&gt;&lt;a href = "#spring" tabindex = "-1"&gt;spring&lt;/a&gt;&lt;/li&gt;
            &lt;/ul&gt;
            
         &lt;/li&gt;
      &lt;/ul&gt;
   &lt;/div&gt;
   
&lt;/nav&gt;

&lt;div data-spy = "scroll" data-target = "#navbar-example" data-offset = "0" 
   style = "height:200px; overflow:auto; position: relative;"&gt;
   &lt;h4 id = "ios"&gt;iOS&lt;/h4&gt;
    
   &lt;p&gt;iOS is a mobile operating system developed and distributed by Apple 
      Inc. Originally released in 2007 for the iPhone, iPod Touch, and Apple 
      TV. iOS is derived from OS X, with which it shares the Darwin 
      foundation. iOS is Apple's mobile version of the OS X operating system 
      used on Apple computers.&lt;/p&gt;
   
   &lt;h4 id = "svn"&gt;SVN&lt;/h4&gt;
   
   &lt;p&gt;Apache Subversion which is often abbreviated as SVN, is a software 
      versioning and revision control system distributed under an open source 
      license. Subversion was created by CollabNet Inc. in 2000, but now it 
      is developed as a project of the Apache Software Foundation, and as 
      such is part of a rich community of developers and users.&lt;/p&gt;
   
   &lt;h4 id = "jmeter"&gt;jMeter&lt;/h4&gt;
   
   &lt;p&gt;jMeter is an Open Source testing software. It is 100% pure Java 
      application for load and performance testing.&lt;/p&gt;
   
   &lt;h4 id = "ejb"&gt;EJB&lt;/h4&gt;
   
   &lt;p&gt;Enterprise Java Beans (EJB) is a development architecture for building 
      highly scalable and robust enterprise level applications to be deployed 
      on J2EE compliant Application Server such as JBOSS, Web Logic etc.&lt;/p&gt;
   
   &lt;h4 id = "spring"&gt;Spring&lt;/h4&gt;
   
   &lt;p&gt;Spring framework is an open source Java platform that provides 
      comprehensive infrastructure support for developing robust Java 
      applications very easily and very rapidly.&lt;/p&gt;
   
   &lt;p&gt;Spring framework was initially written by Rod Johnson and was first 
      released under the Apache 2.0 license in June 2003.&lt;/p&gt;
   
&lt;/div&gt;

<button class = "navbar-toggle" type = "button" data-toggle = "collapse"

data-target = ".bs-js-navbar-scrollspy">

<span class = "sr-only">Toggle navigation</span>

</button>

<a class = "navbar-brand" href = "#">Tutorial Name</a>

</div>

Java

</a>

<li><a href = "#jmeter" tabindex = "-1">jmeter</a></li>

<li><a href = "#spring" tabindex = "-1">spring</a></li>

</ul>

</li>

</ul>

</div>

</nav>

<div data-spy = "scroll" data-target = "#navbar-example" data-offset = "0"

style = "height:200px; overflow:auto; position: relative;">

<p>iOS is a mobile operating system developed and distributed by Apple

Inc. Originally released in 2007 for the iPhone, iPod Touch, and Apple

TV. iOS is derived from OS X, with which it shares the Darwin

foundation. iOS is Apple's mobile version of the OS X operating system

used on Apple computers.</p>

<p>Apache Subversion which is often abbreviated as SVN, is a software

versioning and revision control system distributed under an open source

license. Subversion was created by CollabNet Inc. in 2000, but now it

is developed as a project of the Apache Software Foundation, and as

such is part of a rich community of developers and users.</p>

<h4 id = "jmeter">jMeter</h4>

<p>jMeter is an Open Source testing software. It is 100% pure Java

application for load and performance testing.</p>

<p>Enterprise Java Beans (EJB) is a development architecture for building

highly scalable and robust enterprise level applications to be deployed

on J2EE compliant Application Server such as JBOSS, Web Logic etc.</p>

<h4 id = "spring">Spring</h4>

<p>Spring framework is an open source Java platform that provides

comprehensive infrastructure support for developing robust Java

applications very easily and very rapidly.</p>

<p>Spring framework was initially written by Rod Johnson and was first

released under the Apache 2.0 license in June 2003.</p>

</div>

گزینه ها

گزینه ها می توانند از طریق ویژگی های داده یا جاوا اسکریپت منتقل شوند. جدول زیر گزینه ها را لیست می کند –

نام گزینه	مقدار	نام ویژگی داده	توضیح
offset	number Default: 10	data-offset	پیکسل برای جبران کردن از بالا هنگام محاسبه موقعیت پیمایش.

متد ها

.scrollspy(‘refresh’)– هنگام فراخوانی scrollspy از طریق متد جاوا اسکریپت، برای به روزرسانی DOM باید با روش refresh. فراخوانی شود. اگر عناصر DOM تغییر کرده باشند ، به عنوان مثال اگر برخی از عناصر را اضافه یا حذف کرده باشید ، این مفید است. دستور زیر استفاده از این روش است.

$('[data-spy = "scroll"]').each(function () {
   var $spy = $(this).scrollspy('refresh')
})

$('[data-spy = "scroll"]').each(function () {

var $spy = $(this).scrollspy('refresh')

})

مثال

مثال زیر استفاده از روش scrollspy(‘refresh’). را نشان می دهد –

&lt;nav id = "myScrollspy" class = "navbar navbar-default navbar-static" role = "navigation"&gt;
   
   &lt;div class = "navbar-header"&gt;
      &lt;button class = "navbar-toggle" type = "button" data-toggle = "collapse" 
         data-target = ".bs-js-navbar-scrollspy"&gt;
         &lt;span class = "sr-only"&gt;Toggle navigation&lt;/span&gt;
         &lt;span class = "icon-bar"&gt;&lt;/span&gt;
         &lt;span class = "icon-bar"&gt;&lt;/span&gt;
         &lt;span class = "icon-bar"&gt;&lt;/span&gt;
      &lt;/button&gt;
        
      &lt;a class = "navbar-brand" href = "#"&gt;Tutorial Name&lt;/a&gt;
   &lt;/div&gt;
   
   &lt;div class = "collapse navbar-collapse bs-js-navbar-scrollspy"&gt;
      &lt;ul class = "nav navbar-nav"&gt;
         &lt;li class = "active"&gt;&lt;a href = "#ios"&gt;iOS&lt;/a&gt;&lt;/li&gt;
         &lt;li&gt;&lt;a href = "#svn"&gt;SVN&lt;/a&gt;&lt;/li&gt;
         
         &lt;li class = "dropdown"&gt;
            &lt;a href = "#" id = "navbarDrop1" class = "dropdown-toggle" data-toggle  = "dropdown"&gt;
               Java 
               &lt;b class = "caret"&gt;&lt;/b&gt;
            &lt;/a&gt;
            
            &lt;ul class = "dropdown-menu" role = "menu" aria-labelledby = "navbarDrop1"&gt;
               &lt;li&gt;&lt;a href = "#jmeter" tabindex = "-1"&gt;jmeter&lt;/a&gt;&lt;/li&gt;
               &lt;li&gt;&lt;a href = "#ejb" tabindex = "-1"&gt;ejb&lt;/a&gt;&lt;/li&gt;
               
               &lt;li class = "divider"&gt;&lt;/li&gt;
               &lt;li&gt;&lt;a href = "#spring" tabindex = "-1"&gt;spring&lt;/a&gt;&lt;/li&gt;
            &lt;/ul&gt;
            
         &lt;/li&gt;
      &lt;/ul&gt;
   &lt;/div&gt;
   
&lt;/nav&gt;

&lt;div data-spy = "scroll" data-target = "#myScrollspy" data-offset = "0"  
   style = "height:200px; overflow:auto; position: relative;"&gt;
   
   &lt;div class = "section"&gt;
      &lt;h4 id = "ios"&gt;iOS&lt;small&gt;&lt;a href = "#" onclick = "removeSection(this);"&gt;
         &amp;times; Remove this section&lt;/a&gt;&lt;/small&gt;
      &lt;/h4&gt;
      
      &lt;p&gt;iOS is a mobile operating system developed and distributed by 
         Apple Inc. Originally released in 2007 for the iPhone, iPod Touch, and 
         Apple TV. iOS is derived from OS X, with which it shares the Darwin 
         foundation. iOS is Apple's mobile version of the OS X operating system
         used on Apple computers.&lt;/p&gt;
   &lt;/div&gt;
   
   &lt;div class = "section"&gt;
      &lt;h4 id = "svn"&gt;SVN&lt;small&gt;&lt;/small&gt;&lt;/h4&gt;
      &lt;p&gt;Apache Subversion which is often abbreviated as SVN, is a software 
         versioning and revision control system distributed under an open source 
         license. Subversion was created by CollabNet Inc. in 2000, but 
         now it is developed as a project of the Apache Software Foundation, 
         and as such is part of a rich community of developers and users.&lt;/p&gt;
   &lt;/div&gt;
   
   &lt;div class = "section"&gt;
      &lt;h4 id = "jmeter"&gt;jMeter&lt;small&gt;&lt;a href = "#" onclick = "removeSection(this);"&gt;
         &amp;times; Remove this section&lt;/a&gt;&lt;/small&gt;
      &lt;/h4&gt;
      
      &lt;p&gt;jMeter is an Open Source testing software. It is 100% pure Java 
         application for load and performance testing.&lt;/p&gt;
   &lt;/div&gt;
   
   &lt;div class = "section"&gt;
      &lt;h4 id = "ejb"&gt;EJB&lt;/h4&gt;
      
      &lt;p&gt;Enterprise Java Beans (EJB) is a development architecture for 
         building highly scalable and robust enterprise level applications 
         to be deployed on J2EE compliant Application Server such as 
         JBOSS, Web Logic etc.&lt;/p&gt;
   &lt;/div&gt;
    
   &lt;div class = "section"&gt;
      &lt;h4 id = "spring"&gt;Spring&lt;/h4&gt;
      
      &lt;p&gt;Spring framework is an open source Java platform that provides 
         comprehensive infrastructure support for developing robust Java 
         applications very easily and very rapidly.&lt;/p&gt;
      
      &lt;p&gt;Spring framework was initially written by Rod Johnson and was first 
         released under the Apache 2.0 license in June 2003.&lt;/p&gt;
   &lt;/div&gt;
   
&lt;/div&gt;

&lt;script type = "text/javascript"&gt;
   $(function(){
      removeSection = function(e) {
         $(e).parents(".section").remove();
         
         $('[data-spy = "scroll"]').each(function () {
            var $spy = $(this).scrollspy('refresh')
         });
      }
      $("#myScrollspy").scrollspy();
   });
&lt;/script&gt;

100

101

102

103

104

105

106

<button class = "navbar-toggle" type = "button" data-toggle = "collapse"

data-target = ".bs-js-navbar-scrollspy">

<span class = "sr-only">Toggle navigation</span>

</button>

<a class = "navbar-brand" href = "#">Tutorial Name</a>

</div>

Java

</a>

<li><a href = "#jmeter" tabindex = "-1">jmeter</a></li>

<li><a href = "#spring" tabindex = "-1">spring</a></li>

</ul>

</li>

</ul>

</div>

</nav>

<div data-spy = "scroll" data-target = "#myScrollspy" data-offset = "0"

style = "height:200px; overflow:auto; position: relative;">

&times; Remove this section</a></small>

</h4>

<p>iOS is a mobile operating system developed and distributed by

Apple Inc. Originally released in 2007 for the iPhone, iPod Touch, and

Apple TV. iOS is derived from OS X, with which it shares the Darwin

foundation. iOS is Apple's mobile version of the OS X operating system

used on Apple computers.</p>

</div>

<p>Apache Subversion which is often abbreviated as SVN, is a software

versioning and revision control system distributed under an open source

license. Subversion was created by CollabNet Inc. in 2000, but

now it is developed as a project of the Apache Software Foundation,

and as such is part of a rich community of developers and users.</p>

</div>

<h4 id = "jmeter">jMeter<small><a href = "#" onclick = "removeSection(this);">

&times; Remove this section</a></small>

</h4>

<p>jMeter is an Open Source testing software. It is 100% pure Java

application for load and performance testing.</p>

</div>

<p>Enterprise Java Beans (EJB) is a development architecture for

building highly scalable and robust enterprise level applications

to be deployed on J2EE compliant Application Server such as

JBOSS, Web Logic etc.</p>

</div>

<h4 id = "spring">Spring</h4>

<p>Spring framework is an open source Java platform that provides

comprehensive infrastructure support for developing robust Java

applications very easily and very rapidly.</p>

<p>Spring framework was initially written by Rod Johnson and was first

released under the Apache 2.0 license in June 2003.</p>

</div>

$(function(){

removeSection = function(e) {

$(e).parents(".section").remove();

$('[data-spy = "scroll"]').each(function () {

var $spy = $(this).scrollspy('refresh')

});

}

$("#myScrollspy").scrollspy();

});

</script>

رویداد ها

جدول زیر رویدادهای کار با scrollspy را لیست می کند. این رویداد ممکن است برای اتصال به تابع استفاده شود.

رویداد

توضیح

مثال

activate.bs.scrollspy

این رویداد هر زمان که مورد جدیدی توسط scrollspy فعال می شود، فعال می گیرد.

$('#myScrollspy').on('activate.bs.scrollspy', function () {
   // do something…
})

$('#myScrollspy').on('activate.bs.scrollspy', function () {

// do something…

})

<span class="com">…</span> <span class="pun">})</span>

1	<span class="com">…</span> <span class="pun">})</span>

مثال

مثال زیر استفاده از رویداد activ.bs.scrollspy را نشان می دهد –

&lt;html&gt;
   &lt;head&gt;
      &lt;link rel = "stylesheet" href = "bootstrap/css/bootstrap.min.css"&gt;
      &lt;script src = "bootstrap/scripts/jquery.min.js"&gt;&lt;/script&gt;
      &lt;script src = "bootstrap/js/bootstrap.min.js"&gt;&lt;/script&gt;
      
      &lt;script&gt;
         $(document).ready(function(){
            removeSection = function(e) {
               $(e).parents(".subject").remove();
            
               $('[data-spy="scroll"]').each(function () {
                  var $spy = $(this).scrollspy('refresh')
               });
            }
         
            $("#Navexample").scrollspy();
         
            // The event is fired when an item gets actived with the scrollspy
            $("#Navexample").on('activate.bs.scrollspy', function () {
               var currentSection = $(".nav li.active &gt; a").text();
               $("#spyevent").html("Current Item being viewed &gt;&gt; " + currentSection);
            })
                
         });
      &lt;/script&gt;
   
      &lt;style&gt;
         .scroll-box {
            height: 250px;
            position: relative;
            overflow: auto;
            font-size:2em;
         }
      &lt;/style&gt;
   &lt;/head&gt;
   
   &lt;body&gt;
      &lt;div class = "container"&gt;
         &lt;nav id = "Navexample" class = "navbar navbar-default" role = "navigation"&gt;
      
            &lt;!-- Nav Bar --&gt;
            &lt;div class = "navbar-header"&gt;
               &lt;button type = "button" class = "navbar-toggle" 
                  data-toggle = "collapse" data-target = "#navbarCollapse"&gt;
               
                  &lt;span class = "sr-only"&gt;Toggle navigation&lt;/span&gt;
                  &lt;span class = "icon-bar"&gt;&lt;/span&gt;
                  &lt;span class = "icon-bar"&gt;&lt;/span&gt;
                  &lt;span class = "icon-bar"&gt;&lt;/span&gt;
               &lt;/button&gt;
                    
               &lt;a class = "navbar-brand" href = "#"&gt;Tutorials Point&lt;/a&gt;
            &lt;/div&gt;
            
            &lt;!-- Links and Sublinks --&gt;
            &lt;div class = "collapse navbar-collapse" id = "navbarCollapse"&gt;
               &lt;ul class = "nav navbar-nav"&gt;
                  &lt;li class = "active"&gt;&lt;a href = "#subject-1"&gt;Subject 1&lt;/a&gt;&lt;/li&gt;
                  &lt;li&gt;&lt;a href = "#subject-2"&gt;Subject 2&lt;/a&gt;&lt;/li&gt;
               
                  &lt;li class = "dropdown"&gt;&lt;a href = "#" class = "dropdown-toggle" 
                     data-toggle = "dropdown"&gt;Subject 3&lt;b class = "caret"&gt;&lt;/b&gt;&lt;/a&gt;
                     
                     &lt;ul class = "dropdown-menu"&gt;
                        &lt;li&gt;&lt;a href = "#subject-3-1"&gt;Subject 3.1&lt;/a&gt;&lt;/li&gt;
                        &lt;li&gt;&lt;a href = "#subject-3-2"&gt;Subject 3.2&lt;/a&gt;&lt;/li&gt;
                        &lt;li&gt;&lt;a href = "#subject-3-3"&gt;Subject 3.3&lt;/a&gt;&lt;/li&gt;
                     &lt;/ul&gt;
                     
                  &lt;/li&gt;
                        
                  &lt;li&gt;&lt;a href = "#subject-4"&gt;Subject 4&lt;/a&gt;&lt;/li&gt;
               &lt;/ul&gt;
            &lt;/div&gt;
            
         &lt;/nav&gt;
         
         &lt;div class = "scroll-box" data-spy = "scroll" data-offset = "0"&gt;
            &lt;div class = "subject"&gt;
            
               &lt;h3 id = "subject-1"&gt;Subject 1 
                  &lt;small&gt;&lt;a href = "#" onclick = "removeSubject(this);"&gt;Remove Subject ×&lt;/a&gt;&lt;/small&gt;
               &lt;/h3&gt;
            
               &lt;p&gt;Lorem ipsum dolor sit amet, consectetur adipisicing elit,
                  sed do eiusmod tempor incididunt ut labore et dolore magna
                  aliqua. Ut enim ad minim veniam, quis nostrud exercitation
                  ullamco laboris nisi ut aliquip ex ea commodo consequat.&lt;/p&gt;
            &lt;/div&gt;
                
            &lt;hr&gt;
         
            &lt;div class = "subject"&gt;
               &lt;h3 id = "subject-2"&gt;Subject 2 
                  &lt;small&gt;&lt;a href = "#" onclick = "removeSubject(this);"&gt;Remove Subject ×&lt;/a&gt;&lt;/small&gt;
               &lt;/h3&gt;
            
               &lt;p&gt;Lorem ipsum dolor sit amet, consectetur adipisicing elit,
                  sed do eiusmod tempor incididunt ut labore et dolore magna
                  aliqua. Ut enim ad minim veniam, quis nostrud exercitation
                  ullamco laboris nisi ut aliquip ex ea commodo consequat.&lt;/p&gt;
            &lt;/div&gt;
                
            &lt;hr&gt;
         
            &lt;div class = "subject"&gt;
               &lt;h3 id = "subject-3"&gt;Subject 3 
                  &lt;small&gt;&lt;a href = "#" onclick = "removeSubject(this);"&gt; Remove Subject ×&lt;/a&gt;&lt;/small&gt;
               &lt;/h3&gt;
            
               &lt;p&gt;Lorem ipsum dolor sit amet, consectetur adipisicing elit,
                  sed do eiusmod tempor incididunt ut labore et dolore magna
                  aliqua. Ut enim ad minim veniam, quis nostrud exercitation
                  ullamco laboris nisi ut aliquip ex ea commodo consequat.&lt;/p&gt;&lt;
            &lt;/div&gt;
                
            &lt;hr&gt;
            
            &lt;div class = "subject"&gt;
               &lt;h4 id = "subject-3-1"&gt;Subject 3.1
                  &lt;small&gt;&lt;a href = "#" onclick = "removeSubject(this);"&gt; Remove Subject ×&lt;/a&gt;&lt;/small&gt;
               &lt;/h4&gt;
               
               &lt;p&gt;Lorem ipsum dolor sit amet, consectetur adipisicing elit,
                  sed do eiusmod tempor incididunt ut labore et dolore magna
                  aliqua. Ut enim ad minim veniam, quis nostrud exercitation
                  ullamco laboris nisi ut aliquip ex ea commodo consequat.&lt;/p&gt;
            &lt;/div&gt;
            
            &lt;div class = "subject"&gt;
               &lt;h4 id = "subject-3-2"&gt;Subject 3.2
                  &lt;small&gt;&lt;a href = "#" onclick = "removeSubject(this);"&gt; Remove Subject ×&lt;/a&gt;&lt;/small&gt;
               &lt;/h4&gt;
               
               &lt;p&gt;Lorem ipsum dolor sit amet, consectetur adipisicing elit,
                  sed do eiusmod tempor incididunt ut labore et dolore magna
                  aliqua. Ut enim ad minim veniam, quis nostrud exercitation
                  ullamco laboris nisi ut aliquip ex ea commodo consequat.&lt;/p&gt;
            &lt;/div&gt;
            
            &lt;div class = "subject"&gt;
               &lt;h4 id = "subject-3-3"&gt;Subject 3.3 
                  &lt;small&gt;&lt;a href = "#" onclick = "removeSubject(this);"&gt;Remove Subject ×&lt;/a&gt;&lt;/small&gt;
               &lt;/h4&gt;
               
               &lt;p&gt;Lorem ipsum dolor sit amet, consectetur adipisicing elit,
                  sed do eiusmod tempor incididunt ut labore et dolore magna
                  aliqua. Ut enim ad minim veniam, quis nostrud exercitation
                  ullamco laboris nisi ut aliquip ex ea commodo consequat.&lt;/p&gt;
            &lt;/div&gt;
                
            &lt;hr&gt;
            
            &lt;div class = "subject"&gt;
               &lt;h3 id = "subject-4"&gt;Subject 4 
                  &lt;small&gt;&lt;a href = "#" onclick = "removeSubject(this);"&gt;Remove Subject ×&lt;/a&gt;&lt;/small&gt;
               &lt;/h3&gt;
               
               &lt;p&gt;Lorem ipsum dolor sit amet, consectetur adipisicing elit,
                  sed do eiusmod tempor incididunt ut labore et dolore magna
                  aliqua. Ut enim ad minim veniam, quis nostrud exercitation
                  ullamco laboris nisi ut aliquip ex ea commodo consequat.&lt;/p&gt;
            &lt;/div&gt;
            
         &lt;/div&gt;
         &lt;hr&gt;
         
         &lt;h4 id = "spyevent" class = "text-info"&gt;&lt;/h4&gt;
      &lt;/div&gt;
   &lt;/body&gt;
&lt;/html&gt;

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<html>

<head>

$(document).ready(function(){

removeSection = function(e) {

$(e).parents(".subject").remove();

$('[data-spy="scroll"]').each(function () {

var $spy = $(this).scrollspy('refresh')

});

}

$("#Navexample").scrollspy();

// The event is fired when an item gets actived with the scrollspy

$("#Navexample").on('activate.bs.scrollspy', function () {

var currentSection = $(".nav li.active > a").text();

$("#spyevent").html("Current Item being viewed >> " + currentSection);

})

});

</script>

<style>

.scroll-box {

height: 250px;

position: relative;

overflow: auto;

font-size:2em;

}

</style>

</head>

<body>

<button type = "button" class = "navbar-toggle"

data-toggle = "collapse" data-target = "#navbarCollapse">

<span class = "sr-only">Toggle navigation</span>

</button>

<a class = "navbar-brand" href = "#">Tutorials Point</a>

</div>

<li class = "active"><a href = "#subject-1">Subject 1</a></li>

<li><a href = "#subject-2">Subject 2</a></li>

<li class = "dropdown"><a href = "#" class = "dropdown-toggle"

data-toggle = "dropdown">Subject 3<b class = "caret"></b></a>

<li><a href = "#subject-3-1">Subject 3.1</a></li>

<li><a href = "#subject-3-2">Subject 3.2</a></li>

<li><a href = "#subject-3-3">Subject 3.3</a></li>

</ul>

</li>

<li><a href = "#subject-4">Subject 4</a></li>

</ul>

</div>

</nav>

<h3 id = "subject-1">Subject 1

<small><a href = "#" onclick = "removeSubject(this);">Remove Subject ×</a></small>

</h3>

<p>Lorem ipsum dolor sit amet, consectetur adipisicing elit,

sed do eiusmod tempor incididunt ut labore et dolore magna

aliqua. Ut enim ad minim veniam, quis nostrud exercitation

ullamco laboris nisi ut aliquip ex ea commodo consequat.</p>

</div>

<hr>

<h3 id = "subject-2">Subject 2

<small><a href = "#" onclick = "removeSubject(this);">Remove Subject ×</a></small>

</h3>

<p>Lorem ipsum dolor sit amet, consectetur adipisicing elit,

sed do eiusmod tempor incididunt ut labore et dolore magna

aliqua. Ut enim ad minim veniam, quis nostrud exercitation

ullamco laboris nisi ut aliquip ex ea commodo consequat.</p>

</div>

<hr>

<h3 id = "subject-3">Subject 3

<small><a href = "#" onclick = "removeSubject(this);"> Remove Subject ×</a></small>

</h3>

<p>Lorem ipsum dolor sit amet, consectetur adipisicing elit,

sed do eiusmod tempor incididunt ut labore et dolore magna

aliqua. Ut enim ad minim veniam, quis nostrud exercitation

ullamco laboris nisi ut aliquip ex ea commodo consequat.</p><

</div>

<hr>

<h4 id = "subject-3-1">Subject 3.1

<small><a href = "#" onclick = "removeSubject(this);"> Remove Subject ×</a></small>

</h4>

<p>Lorem ipsum dolor sit amet, consectetur adipisicing elit,

sed do eiusmod tempor incididunt ut labore et dolore magna

aliqua. Ut enim ad minim veniam, quis nostrud exercitation

ullamco laboris nisi ut aliquip ex ea commodo consequat.</p>

</div>

<h4 id = "subject-3-2">Subject 3.2

<small><a href = "#" onclick = "removeSubject(this);"> Remove Subject ×</a></small>

</h4>

<p>Lorem ipsum dolor sit amet, consectetur adipisicing elit,

sed do eiusmod tempor incididunt ut labore et dolore magna

aliqua. Ut enim ad minim veniam, quis nostrud exercitation

ullamco laboris nisi ut aliquip ex ea commodo consequat.</p>

</div>

<h4 id = "subject-3-3">Subject 3.3

<small><a href = "#" onclick = "removeSubject(this);">Remove Subject ×</a></small>

</h4>

<p>Lorem ipsum dolor sit amet, consectetur adipisicing elit,

sed do eiusmod tempor incididunt ut labore et dolore magna

aliqua. Ut enim ad minim veniam, quis nostrud exercitation

ullamco laboris nisi ut aliquip ex ea commodo consequat.</p>

</div>

<hr>

<h3 id = "subject-4">Subject 4

<small><a href = "#" onclick = "removeSubject(this);">Remove Subject ×</a></small>

</h3>

<p>Lorem ipsum dolor sit amet, consectetur adipisicing elit,

sed do eiusmod tempor incididunt ut labore et dolore magna

aliqua. Ut enim ad minim veniam, quis nostrud exercitation

ullamco laboris nisi ut aliquip ex ea commodo consequat.</p>

</div>

<hr>

</div>

</body>

</html>

منبع.

لیست جلسات قبل آموزش بوت استرپ

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نویسنده مطلب saber

آموزش پلاگین Scrollspy در بوت استرپ

آموزش پلاگین Scrollspy در بوت استرپ

موارد استفاده

مثال

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متد ها

مثال

رویداد ها

مثال

لیست جلسات قبل آموزش بوت استرپ

دیدگاه شما

بدون دیدگاه

آموزش پلاگین Scrollspy در بوت استرپ

موارد استفاده

مثال

گزینه ها

متد ها

مثال

رویداد ها

مثال

لیست جلسات قبل آموزش بوت استرپ

دیدگاه شما

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