Buttons example Hidden initialisation

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:

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$('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:

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$(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: