selected
Button that is enabled when one or more items are selected in the table.
Please note - this property requires the Select extension for DataTables.
Description
When working with item selection in a DataTable you will typically wish to provide your end users with the ability to take some kind of action when items are selected. This button provides a basic framework for that, as it is dynamically enabled and disabled automatically as items in the table are selected.
By providing an action
function (buttons.buttons.action
/ button().action()
) this button can be used to perform whatever operation is required on the table and its selected items.
Example
DataTables initialisation: Count the number of selected rows:
$('#myTable').DataTable( {
buttons: [
{
extend: 'selected',
text: 'Count selected rows',
action: function ( e, dt, button, config ) {
alert( dt.rows( { selected: true } ).indexes().length +' row(s) selected' );
}
}
]
} );