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How to update table using jQuery

 原文  2015-01-20 20:54:31  4   3    javascript/ jquery/ html/ ajax/ json

Question

I am trying to update the rows of the below html table dynamically based on the input received from ajax request made which returns a JSON object.

If i get more than one json object it becomes an issue to print it on the web page. I am looking at possible best solutions in this case to dynamically update my table using jQuery? For example If i get 10 objects I only want to show 5 and the rest maybe a next page link ? Can someone guide me what should i look into ?

jQuery Ajax 

<script>
        $.ajax({
            url: 'http://localhost/getData/USSOUTH/',
            async: false,
            dataType: 'json',
            success: function(data) {

                for (var i in data) {

                    var USERNAME = data[i].USERNAME;
                    var EMAIL = data[i].EMAIL;
                    var PASSWORD = data[i].PASSWORD;
                    var ACTIVE = data[i].ACTIVE;

                }
            }
        });
</script>

HTML BODY 

<body>

<div class="wrapper">

  <div class="table">

    <div class="row header blue">
      <div class="cell">
        Username
      </div>
      <div class="cell">
        Email
      </div>
      <div class="cell">
        Password
      </div>
      <div class="cell">
        Active
      </div>
    </div>

    <div class="row">
      <div class="cell">
        ninjalug
      </div>
      <div class="cell">
        misterninja@hotmail.com
      </div>
      <div class="cell">
        ************
      </div>
      <div class="cell">
        Yes
      </div>
    </div>

  </div>

</div>

</body>

3 answers

solution1
 3  2015-01-20 21:19:26

i kinda simplified the code, but you'll get the gist and can modify it to apply with your specific code (and i cant do json with code snippet, so i simulated an array variable called jsonData ) 

 $(document).ready(function() { var jsonData = [ { 'name': 'name2', 'email':'email2', 'content':'content2' }, { 'name': 'name3', 'email':'email3', 'content':'content3' }, { 'name': 'name4', 'email':'email4', 'content':'content4' }, { 'name': 'name5', 'email':'email5', 'content':'content5' }, { 'name': 'name6', 'email':'email6', 'content':'content6' }, { 'name': 'name7', 'email':'email7', 'content':'content7' }, { 'name': 'name8', 'email':'email8', 'content':'content8' } ]; $('.add').on('click', function() { console.log('click'); var length = jsonData.length; if (length > 5 ) { length = 5; } //limit to 5 for (var i = 0; i < length; i++) { var clone = $('#template').clone(true).attr('id', ''); clone.find('.name').html(jsonData[i]['name']); clone.find('.email').html(jsonData[i]['email']); clone.find('.content').html(jsonData[i]['content']); clone.appendTo('table'); } }); }); 
 td { border:1px solid black; padding:2px; } 
 <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.0/jquery.min.js"></script> <a href="#" class="add">add</a> <table> <tr id="template" class="dataRow"> <td class="name">Name1</td> <td class="email">Email1</td> <td class="content">Content1</td> </tr> </table>

solution2
 1  2015-01-20 21:25:39

You can check the AJAX service documentation if it supports paging, which is its respond will contain only 5 records and an indicator that there is some more. That way you will be able to request next 5 records to display if needed in similar way as your first request.

If the service does not support paging then you may hide any record above first 5, with attribute style="display: none;" and display navigation links NEXT & PREVIOUS to "scroll" results. 

 // Data will be replaced with your Json call var data = [ {'username': 'name1', 'email':'email1', 'password':'password1', 'active':'active1' }, {'username': 'name2', 'email':'email2', 'password':'password2', 'active':'active2' }, {'username': 'name3', 'email':'email3', 'password':'password3', 'active':'active3' }, {'username': 'name4', 'email':'email4', 'password':'password4', 'active':'active4' }, {'username': 'name5', 'email':'email5', 'password':'password5', 'active':'active5' }, {'username': 'name6', 'email':'email6', 'password':'password6', 'active':'active6' }, {'username': 'name7', 'email':'email7', 'password':'password7', 'active':'active7' }, {'username': 'name8', 'email':'email8', 'password':'password8', 'active':'active8' }, {'username': 'name9', 'email':'email9', 'password':'password9', 'active':'active9' }, {'username': 'name10','email':'email10','password':'password10','active':'active10'}, {'username': 'name11','email':'email11','password':'password11','active':'active11'}, {'username': 'name12','email':'email12','password':'password12','active':'active12'} ]; var MAX_ROWS = 5; var totalRows = 0; var page = 0; $(document).ready(function() { // display first 5 rows var $templateRow = $('#templateRow'); $.each(data, function(i, obj) { var $row = $templateRow.clone().removeAttr('id') // copy data $row.find('*[data-name]').html(obj.username); $row.find('*[data-email]').html(obj.email); $row.find('*[data-pass]').html(obj.password); $row.find('*[data-active]').html(obj.active); $('.table').append($row); }); // Navigation part page = 0; totalRows = data.length; showRows(); displayNext(); // Navigation handler $('*[data-prev-lnk]').on('click', function(e) { e.preventDefault(); page--; displayPrev(); displayNext(); showRows() }); $('*[data-next-lnk]').on('click', function(e) { e.preventDefault(); page++; displayPrev(); displayNext(); showRows(); }); }); function displayPrev() { if (page > 0) $('*[data-prev-lnk]').show(); else $('*[data-prev-lnk]').hide(); } function displayNext() { var currRow = (page+1) * MAX_ROWS; if (currRow >= totalRows) $('*[data-next-lnk]').hide(); else $('*[data-next-lnk]').show(); } function showRows() { var startRow = page * MAX_ROWS; var counter = 0; $('.row').each( function() { if (! ($(this).attr('id') || $(this).hasClass('header'))) { if (counter < startRow || counter >= startRow + MAX_ROWS) { $(this).hide(); } else { $(this).show(); } counter++; } }); } 
 div.table {border: 1px solid black; display: table; width: 500px;} div.row {border: 1px solid black; display: table-row; } div.cell {border: 1px solid black; display: table-cell; } 
 <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.0/jquery.min.js"></script> <div class="wrapper"> <div class="table"> <div class="row header blue"> <div class="cell">Username</div> <div class="cell">Email</div> <div class="cell">Password</div> <div class="cell">Active</div> </div> <div id="templateRow" class="row" style="display:none;"> <div class="cell" data-name=''></div> <div class="cell" data-email=''></div> <div class="cell" data-pass=''></div> <div class="cell" data-active=''></div> </div> </div> <br/><a href='#' data-prev-lnk='' style='display:none'>Previous</a> <br/><a href='#' data-next-lnk='' style='display:none'>Next</a> </div>

solution3
 0  2015-01-20 22:00:55

Let's use thead and tbody for better usage and add button for next set of results.

HTML: 

<body>

<div class="wrapper">

  <button id ="nextPage" value ="Next page">
  <div class="table">
    <thead class="row header blue">
      <div class="cell">
        Username
      </div>
      <div class="cell">
        Email
      </div>
      <div class="cell">
        Password
      </div>
      <div class="cell">
        Active
      </div>
    </thead>

    <tbody>
    <div class="row">
      <div class="cell">
        ninjalug
      </div>
      <div class="cell">
        misterninja@hotmail.com
      </div>
      <div class="cell">
        ************
      </div>
      <div class="cell">
        Yes
      </div>
    </div>
    </tbody>

  </div>

</div>

</body>

in JS assign function to button, which will display next 5 records: 

var results = "";
$.ajax({
    url: 'http://localhost/getData/USSOUTH/',
    async: false,
    dataType: 'json',
    success: function(data) {
        results = data;
        showResults(results);

    }
});

//function for showing results
function showResults(data)
{
    var rows = $('tbody .row').length; // get number of already displayed records
    for (i = rows; i<=from+4,i++;) //add next 5 records
    {
        var content = '\
            <div class="row">\
                <div class="cell">\
                    '+data[i].USERNAME+'\
                </div>\
                <div class="cell">\
                    '+data[i].EMAIL+'\
                </div>\
                <div class="cell">\
                    '+data[i].PASSWORD+'\
                </div>\
                <div class="cell">\
                    '+data[i].ACTIVE+'\
                </div>\
            </div>';
        $('tbody .row:last').after(content);
    }
}

$("nextPage").click(function(){
    showResults(results);
});

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