When Flash buttons are created the Flash movie clip inside of them (which provides the export action) is automatically sized to fit the button. However, if the
table is initialised while hidden the buttons will have zero height and width. As a result, when the table is made visible the Flash movies must be resized to fit
the buttons. This is done using the buttons.resize() method (note that this method is only available when the Flash export buttons plug-in for Buttons is
installed).
This example shows a table that is initially hidden. If you make it visible and click the export buttons nothing will happen. Click the Resize buttons option and the export buttons will start to operate.
A resize is often required when the table is hidden in a tab when initialised - for example if using Bootstrap tabs you might use:
$('a[data-toggle="tab"]').on('shown.bs.tab', function (e) {
$.fn.dataTable.tables( { visible: true, api: true } ).buttons.resize();
})
The Javascript shown below is used to initialise the table shown in this example:
$(document).ready(function() {
$('#example').wrap('<div id="hide" style="display:none"/>');
$('#example').DataTable( {
dom: 'Bfrtip',
buttons: [
'copyFlash',
'csvFlash',
'excelFlash',
'pdfFlash'
]
} );
$('#vis').one( 'click', function () {
$('#hide').css( 'display', 'block' );
} );
$('#resize').on( 'click', function () {
$.fn.dataTable.tables( { visible: true, api: true } ).buttons.resize();
} );
} );
In addition to the above code, the following Javascript library files are loaded for use in this example:
The HTML shown below is the raw HTML table element, before it has been enhanced by DataTables:
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:
button {
margin: 1em;
padding: 1em;
}
The following CSS library files are loaded for use in this example to provide the styling of the table:
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.
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 the protocol described in the DataTables documentation.