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DataTables/examples/server_side/defer_loading.html
Allan Jardine bda57baa83 New: Google Material Design implementation tech preview
- Trying to gauge the level of interest
2016-02-03 11:42:46 +00:00

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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<link rel="shortcut icon" type="image/ico" href="http://www.datatables.net/favicon.ico">
<meta name="viewport" content="initial-scale=1.0, maximum-scale=2.0">
<title>DataTables example - Deferred loading of data</title>
<link rel="stylesheet" type="text/css" href="../../media/css/jquery.dataTables.css">
<link rel="stylesheet" type="text/css" href="../resources/syntax/shCore.css">
<link rel="stylesheet" type="text/css" href="../resources/demo.css">
<style type="text/css" class="init">
</style>
<script type="text/javascript" language="javascript" src="//code.jquery.com/jquery-1.12.0.min.js">
</script>
<script type="text/javascript" language="javascript" src="../../media/js/jquery.dataTables.js">
</script>
<script type="text/javascript" language="javascript" src="../resources/syntax/shCore.js">
</script>
<script type="text/javascript" language="javascript" src="../resources/demo.js">
</script>
<script type="text/javascript" language="javascript" class="init">
$(document).ready(function() {
$('#example').DataTable( {
"processing": true,
"serverSide": true,
"ajax": "scripts/server_processing.php",
"deferLoading": 57
} );
} );
</script>
</head>
<body class="dt-example">
<div class="container">
<section>
<h1>DataTables example <span>Deferred loading of data</span></h1>
<div class="info">
<p>When using DataTables with server-side processing, the default behaviour is to have DataTables automatically make an Ajax call and load the data, removing
anything which might have already been in the table. However, this behaviour might not always be desirable when the first page of the table has already been
preloaded in the HTML (which you might do to ensure accessibility or for performance reasons).</p>
<p>This automatic Ajax call to get the first page of data can be overridden by using the <a href="//datatables.net/reference/option/deferLoading"><code class=
"option" title="DataTables initialisation option">deferLoading</code></a> initialisation property. It serves two purposes, firstly to indicate that deferred
loading is required, but also to tell DataTables how many records there are in the full table, in this case 57 (this allows the information element and pagination
to be displayed correctly).</p>
<p>In the example below, the HTML page already has the first 10 rows of data available it in, so we use <a href=
"//datatables.net/reference/option/deferLoading"><code class="option" title="DataTables initialisation option">deferLoading</code></a> to tell DataTables that this
data is available and that it should wait for under interaction (ordering, paging etc) before making an Ajax call.</p>
</div>
<table id="example" class="display" cellspacing="0" width="100%">
<thead>
<tr>
<th>First name</th>
<th>Last name</th>
<th>Position</th>
<th>Office</th>
<th>Start date</th>
<th>Salary</th>
</tr>
</thead>
<tfoot>
<tr>
<th>First name</th>
<th>Last name</th>
<th>Position</th>
<th>Office</th>
<th>Start date</th>
<th>Salary</th>
</tr>
</tfoot>
<tr class="odd">
<td>Airi</td>
<td>Satou</td>
<td>Accountant</td>
<td>Tokyo</td>
<td>28th Nov 08</td>
<td>$162,700</td>
</tr>
<tr class="even">
<td>Angelica</td>
<td>Ramos</td>
<td>Chief Executive Officer (CEO)</td>
<td>London</td>
<td>9th Oct 09</td>
<td>$1,200,000</td>
</tr>
<tr class="odd">
<td>Ashton</td>
<td>Cox</td>
<td>Junior Technical Author</td>
<td>San Francisco</td>
<td>12th Jan 09</td>
<td>$86,000</td>
</tr>
<tr class="even">
<td>Bradley</td>
<td>Greer</td>
<td>Software Engineer</td>
<td>London</td>
<td>13th Oct 12</td>
<td>$132,000</td>
</tr>
<tr class="odd">
<td>Brenden</td>
<td>Wagner</td>
<td>Software Engineer</td>
<td>San Francisco</td>
<td>7th Jun 11</td>
<td>$206,850</td>
</tr>
<tr class="even">
<td>Brielle</td>
<td>Williamson</td>
<td>Integration Specialist</td>
<td>New York</td>
<td>2nd Dec 12</td>
<td>$372,000</td>
</tr>
<tr class="odd">
<td>Bruno</td>
<td>Nash</td>
<td>Software Engineer</td>
<td>London</td>
<td>3rd May 11</td>
<td>$163,500</td>
</tr>
<tr class="even">
<td>Caesar</td>
<td>Vance</td>
<td>Pre-Sales Support</td>
<td>New York</td>
<td>12th Dec 11</td>
<td>$106,450</td>
</tr>
<tr class="odd">
<td>Cara</td>
<td>Stevens</td>
<td>Sales Assistant</td>
<td>New York</td>
<td>6th Dec 11</td>
<td>$145,600</td>
</tr>
<tr class="even">
<td>Cedric</td>
<td>Kelly</td>
<td>Senior Javascript Developer</td>
<td>Edinburgh</td>
<td>29th Mar 12</td>
<td>$433,060</td>
</tr>
</table>
<ul class="tabs">
<li class="active">Javascript</li>
<li>HTML</li>
<li>CSS</li>
<li>Ajax</li>
<li>Server-side script</li>
</ul>
<div class="tabs">
<div class="js">
<p>The Javascript shown below is used to initialise the table shown in this example:</p><code class="multiline language-js">$(document).ready(function() {
$('#example').DataTable( {
&quot;processing&quot;: true,
&quot;serverSide&quot;: true,
&quot;ajax&quot;: &quot;scripts/server_processing.php&quot;,
&quot;deferLoading&quot;: 57
} );
} );</code>
<p>In addition to the above code, the following Javascript library files are loaded for use in this example:</p>
<ul>
<li>
<a href="//code.jquery.com/jquery-1.12.0.min.js">//code.jquery.com/jquery-1.12.0.min.js</a>
</li>
<li>
<a href="../../media/js/jquery.dataTables.js">../../media/js/jquery.dataTables.js</a>
</li>
</ul>
</div>
<div class="table">
<p>The HTML shown below is the raw HTML table element, before it has been enhanced by DataTables:</p>
</div>
<div class="css">
<div>
<p>This example uses a little bit of additional CSS beyond what is loaded from the library files (below), in order to correctly display the table. The
additional CSS used is shown below:</p><code class="multiline language-css"></code>
</div>
<p>The following CSS library files are loaded for use in this example to provide the styling of the table:</p>
<ul>
<li>
<a href="../../media/css/jquery.dataTables.css">../../media/css/jquery.dataTables.css</a>
</li>
</ul>
</div>
<div class="ajax">
<p>This table loads data by Ajax. The latest data that has been loaded is shown below. This data will update automatically as any additional data is
loaded.</p>
</div>
<div class="php">
<p>The script used to perform the server-side processing for this table is shown below. Please note that this is just an example script using PHP. Server-side
processing scripts can be written in any language, using <a href="//datatables.net/manual/server-side">the protocol described in the DataTables
documentation</a>.</p>
</div>
</div>
</section>
</div>
<section>
<div class="footer">
<div class="gradient"></div>
<div class="liner">
<h2>Other examples</h2>
<div class="toc">
<div class="toc-group">
<h3><a href="../basic_init/index.html">Basic initialisation</a></h3>
<ul class="toc">
<li>
<a href="../basic_init/zero_configuration.html">Zero configuration</a>
</li>
<li>
<a href="../basic_init/filter_only.html">Feature enable / disable</a>
</li>
<li>
<a href="../basic_init/table_sorting.html">Default ordering (sorting)</a>
</li>
<li>
<a href="../basic_init/multi_col_sort.html">Multi-column ordering</a>
</li>
<li>
<a href="../basic_init/multiple_tables.html">Multiple tables</a>
</li>
<li>
<a href="../basic_init/hidden_columns.html">Hidden columns</a>
</li>
<li>
<a href="../basic_init/complex_header.html">Complex headers (rowspan and colspan)</a>
</li>
<li>
<a href="../basic_init/dom.html">DOM positioning</a>
</li>
<li>
<a href="../basic_init/flexible_width.html">Flexible table width</a>
</li>
<li>
<a href="../basic_init/state_save.html">State saving</a>
</li>
<li>
<a href="../basic_init/alt_pagination.html">Alternative pagination</a>
</li>
<li>
<a href="../basic_init/scroll_y.html">Scroll - vertical</a>
</li>
<li>
<a href="../basic_init/scroll_y_dynamic.html">Scroll - vertical, dynamic height</a>
</li>
<li>
<a href="../basic_init/scroll_x.html">Scroll - horizontal</a>
</li>
<li>
<a href="../basic_init/scroll_xy.html">Scroll - horizontal and vertical</a>
</li>
<li>
<a href="../basic_init/comma-decimal.html">Language - Comma decimal place</a>
</li>
<li>
<a href="../basic_init/language.html">Language options</a>
</li>
</ul>
</div>
<div class="toc-group">
<h3><a href="../advanced_init/index.html">Advanced initialisation</a></h3>
<ul class="toc">
<li>
<a href="../advanced_init/events_live.html">DOM / jQuery events</a>
</li>
<li>
<a href="../advanced_init/dt_events.html">DataTables events</a>
</li>
<li>
<a href="../advanced_init/column_render.html">Column rendering</a>
</li>
<li>
<a href="../advanced_init/length_menu.html">Page length options</a>
</li>
<li>
<a href="../advanced_init/dom_multiple_elements.html">Multiple table control elements</a>
</li>
<li>
<a href="../advanced_init/complex_header.html">Complex headers with column visibility</a>
</li>
<li>
<a href="../advanced_init/object_dom_read.html">Read HTML to data objects</a>
</li>
<li>
<a href="../advanced_init/html5-data-options.html">HTML5 data-* attributes - table options</a>
</li>
<li>
<a href="../advanced_init/html5-data-attributes.html">HTML5 data-* attributes - cell data</a>
</li>
<li>
<a href="../advanced_init/language_file.html">Language file</a>
</li>
<li>
<a href="../advanced_init/defaults.html">Setting defaults</a>
</li>
<li>
<a href="../advanced_init/row_callback.html">Row created callback</a>
</li>
<li>
<a href="../advanced_init/row_grouping.html">Row grouping</a>
</li>
<li>
<a href="../advanced_init/footer_callback.html">Footer callback</a>
</li>
<li>
<a href="../advanced_init/dom_toolbar.html">Custom toolbar elements</a>
</li>
<li>
<a href="../advanced_init/sort_direction_control.html">Order direction sequence control</a>
</li>
</ul>
</div>
<div class="toc-group">
<h3><a href="../styling/index.html">Styling</a></h3>
<ul class="toc">
<li>
<a href="../styling/display.html">Base style</a>
</li>
<li>
<a href="../styling/no-classes.html">Base style - no styling classes</a>
</li>
<li>
<a href="../styling/cell-border.html">Base style - cell borders</a>
</li>
<li>
<a href="../styling/compact.html">Base style - compact</a>
</li>
<li>
<a href="../styling/hover.html">Base style - hover</a>
</li>
<li>
<a href="../styling/order-column.html">Base style - order-column</a>
</li>
<li>
<a href="../styling/row-border.html">Base style - row borders</a>
</li>
<li>
<a href="../styling/stripe.html">Base style - stripe</a>
</li>
<li>
<a href="../styling/bootstrap.html">Bootstrap 3</a>
</li>
<li>
<a href="../styling/bootstrap4.html">Bootstrap 4</a>
</li>
<li>
<a href="../styling/material.html">Material Design (Tech. preview)</a>
</li>
<li>
<a href="../styling/foundation.html">Foundation</a>
</li>
<li>
<a href="../styling/semanticui.html">Semantic UI</a>
</li>
<li>
<a href="../styling/jqueryUI.html">jQuery UI ThemeRoller</a>
</li>
</ul>
</div>
<div class="toc-group">
<h3><a href="../data_sources/index.html">Data sources</a></h3>
<ul class="toc">
<li>
<a href="../data_sources/dom.html">HTML (DOM) sourced data</a>
</li>
<li>
<a href="../data_sources/ajax.html">Ajax sourced data</a>
</li>
<li>
<a href="../data_sources/js_array.html">Javascript sourced data</a>
</li>
<li>
<a href="../data_sources/server_side.html">Server-side processing</a>
</li>
</ul>
</div>
<div class="toc-group">
<h3><a href="../api/index.html">API</a></h3>
<ul class="toc">
<li>
<a href="../api/add_row.html">Add rows</a>
</li>
<li>
<a href="../api/multi_filter.html">Individual column searching (text inputs)</a>
</li>
<li>
<a href="../api/multi_filter_select.html">Individual column searching (select inputs)</a>
</li>
<li>
<a href="../api/highlight.html">Highlighting rows and columns</a>
</li>
<li>
<a href="../api/row_details.html">Child rows (show extra / detailed information)</a>
</li>
<li>
<a href="../api/select_row.html">Row selection (multiple rows)</a>
</li>
<li>
<a href="../api/select_single_row.html">Row selection and deletion (single row)</a>
</li>
<li>
<a href="../api/form.html">Form inputs</a>
</li>
<li>
<a href="../api/counter_columns.html">Index column</a>
</li>
<li>
<a href="../api/show_hide.html">Show / hide columns dynamically</a>
</li>
<li>
<a href="../api/api_in_init.html">Using API in callbacks</a>
</li>
<li>
<a href="../api/tabs_and_scrolling.html">Scrolling and Bootstrap tabs</a>
</li>
<li>
<a href="../api/regex.html">Search API (regular expressions)</a>
</li>
</ul>
</div>
<div class="toc-group">
<h3><a href="../ajax/index.html">Ajax</a></h3>
<ul class="toc">
<li>
<a href="../ajax/simple.html">Ajax data source (arrays)</a>
</li>
<li>
<a href="../ajax/objects.html">Ajax data source (objects)</a>
</li>
<li>
<a href="../ajax/deep.html">Nested object data (objects)</a>
</li>
<li>
<a href="../ajax/objects_subarrays.html">Nested object data (arrays)</a>
</li>
<li>
<a href="../ajax/orthogonal-data.html">Orthogonal data</a>
</li>
<li>
<a href="../ajax/null_data_source.html">Generated content for a column</a>
</li>
<li>
<a href="../ajax/custom_data_property.html">Custom data source property</a>
</li>
<li>
<a href="../ajax/custom_data_flat.html">Flat array data source</a>
</li>
<li>
<a href="../ajax/defer_render.html">Deferred rendering for speed</a>
</li>
</ul>
</div>
<div class="toc-group">
<h3><a href="./index.html">Server-side</a></h3>
<ul class="toc active">
<li>
<a href="./simple.html">Server-side processing</a>
</li>
<li>
<a href="./custom_vars.html">Custom HTTP variables</a>
</li>
<li>
<a href="./post.html">POST data</a>
</li>
<li>
<a href="./ids.html">Automatic addition of row ID attributes</a>
</li>
<li>
<a href="./object_data.html">Object data source</a>
</li>
<li>
<a href="./row_details.html">Row details</a>
</li>
<li>
<a href="./select_rows.html">Row selection</a>
</li>
<li>
<a href="./jsonp.html">JSONP data source for remote domains</a>
</li>
<li class="active">
<a href="./defer_loading.html">Deferred loading of data</a>
</li>
<li>
<a href="./pipeline.html">Pipelining data to reduce Ajax calls for paging</a>
</li>
</ul>
</div>
<div class="toc-group">
<h3><a href="../plug-ins/index.html">Plug-ins</a></h3>
<ul class="toc">
<li>
<a href="../plug-ins/api.html">API plug-in methods</a>
</li>
<li>
<a href="../plug-ins/sorting_auto.html">Ordering plug-ins (with type detection)</a>
</li>
<li>
<a href="../plug-ins/sorting_manual.html">Ordering plug-ins (no type detection)</a>
</li>
<li>
<a href="../plug-ins/range_filtering.html">Custom filtering - range search</a>
</li>
<li>
<a href="../plug-ins/dom_sort.html">Live DOM ordering</a>
</li>
</ul>
</div>
</div>
<div class="epilogue">
<p>Please refer to the <a href="http://www.datatables.net">DataTables documentation</a> for full information about its API properties and methods.<br>
Additionally, there are a wide range of <a href="http://www.datatables.net/extensions">extensions</a> and <a href=
"http://www.datatables.net/plug-ins">plug-ins</a> which extend the capabilities of DataTables.</p>
<p class="copyright">DataTables designed and created by <a href="http://www.sprymedia.co.uk">SpryMedia Ltd</a> © 2007-2016<br>
DataTables is licensed under the <a href="http://www.datatables.net/mit">MIT license</a>.</p>
</div>
</div>
</div>
</section>
</body>
</html>