This blog is useful to all my friends who are working on the .Net Technology and wants to enhance their skills as well their problem solving ability.

Monday, March 4, 2013

show hide div content using jquey

The HTML

Below is the sample text. Each text is wrapped in a DIV tag. Note that we have added a class “more” in each div. This class will decide if a text needs to be shortened and show more link showed or not.
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Vestibulum laoreet, nunc eget laoreet sagittis, quam ligula sodales orci, congue imperdiet eros tortor ac lectus. Duis eget nisl orci. Aliquam mattis purus non mauris blandit id luctus felis convallis. Integer varius egestas vestibulum. Nullam a dolor arcu, ac tempor elit. Donec.
Duis nisl nibh, egestas at fermentum at, viverra et purus. Maecenas lobortis odio id sapien facilisis elementum. Curabitur et magna justo, et gravida augue. Sed tristique pellentesque arcu quis tempor.
consectetur adipiscing elit. Proin blandit nunc sed sem dictum id feugiat quam blandit. Donec nec sem sed arcu interdum commodo ac ac diam. Donec consequat semper rutrum. Vestibulum et mauris elit. Vestibulum mauris lacus, ultricies.

The CSS

Below is the CSS code for our example. Note the class “.morecontent span” is hidden. The extra text from the content is wrapped in this span and is hidden at time of page loading.
a {
 color: #0254EB
}
a:visited {
 color: #0254EB
}
a.morelink {
 text-decoration:none;
 outline: none;
}
.morecontent span {
 display: none;
}
.comment {
 width: 400px;
 background-color: #f0f0f0;
 margin: 10px;
}

The Javascript

Below is the Javascript code which iterate through each DIV tags with class “more” and split the text in two. First half is showed to user and second is made hidden with a link “more..”.
You can change the behaviour by changing following js variables.
  • showChar: Total characters to show to user. If the content is more then showChar, it will be split into two halves and first one will be showed to user.
  • ellipsestext: The text displayed before “more” link. Default is “…”
  • moretext: The text shown in more link. Default is “more”. You can change to “>>”
  • lesstext: The text shown in less link. Default is “less”. You can change to “<<"
$(document).ready(function() {
 var showChar = 100;
 var ellipsestext = "...";
 var moretext = "more";
 var lesstext = "less";
 $('.more').each(function() {
  var content = $(this).html();

  if(content.length > showChar) {

   var c = content.substr(0, showChar);
   var h = content.substr(showChar-1, content.length - showChar);

   var html = c + '' + ellipsestext+ ' ' + h + '  ' + moretext + '';

   $(this).html(html);
  }

 });

 $(".morelink").click(function(){
  if($(this).hasClass("less")) {
   $(this).removeClass("less");
   $(this).html(moretext);
  } else {
   $(this).addClass("less");
   $(this).html(lesstext);
  }
  $(this).parent().prev().toggle();
  $(this).prev().toggle();
  return false;
 });
});