javascript - 如何使用DataTables清除所有列标题

我想知道，当使用AJAX更新DataTables时，如何删除以前DataTable遗留的列标题？我在两个绘制表的函数中都将bDestroy设置为true，但是，其中一个表的列数少于另一个表，并且在加载较大的表后加载较小的表时，我从较大的表中获得了剩余的列标题。

这是我的两个功能：

function combinedAgeGender() {
(function($) {
    $('#data').html('<table width="100%" cellspacing="3" cellpadding="0" id="data-entry"></table>');
    $('#data-entry').dataTable({
        "bProcessing": true,
        "bScrollInfinite": true,
        "bScrollCollapse": true ,
        "bAutoWidth": false,
        "iDisplayLength": -1,
        "bDestroy": true,
        "sDom": '<"top">rt<"bottom">',
        "aaSorting": [],
        "sAjaxSource": "/CensusDatabase/database_scripts/CombinedAgeGender.php",
        "aoColumns": [
            { "sTitle": "Age group" },
            { "sTitle": "National total population (both genders)" },
            { "sTitle": "National male population" },
            { "sTitle": "National female population" },
            { "sTitle": "National % (both genders)" },
            { "sTitle": "National male %" },
            { "sTitle": "National female %" },
            { "sTitle": "National males per 100 females" },
            { "sTitle": "Arizona total population (both genders)" },
            { "sTitle": "Arizona male population" },
            { "sTitle": "Arizona female population" },
            { "sTitle": "Arizona % (both genders)" },
            { "sTitle": "Arizona male %" },
            { "sTitle": "Arizona female %" },
            { "sTitle": "Arizona males per 100 females" }

        ]

    });
})(jQuery);
}

function nationalAgeGender() {
(function($) {
    $('#data').html('<table width="100%" cellspacing="3" cellpadding="0" id="data-entry"></table>');
    $('#data-entry').dataTable({
        "bProcessing": true,
        "bScrollInfinite": true,
        "bScrollCollapse": true ,
        "bAutoWidth": false,
        "bDestroy": true,
        "iDisplayLength": -1,
        "sDom": '<"top">rt<"bottom">',
        "aaSorting": [],
        "sAjaxSource": "/CensusDatabase/database_scripts/NationalAgeGender.php",
        "aoColumns": [
            { "sTitle": "Age group" },
            { "sTitle": "Total population (both genders)" },
            { "sTitle": "Male population" },
            { "sTitle": "Female population" },
            { "sTitle": "% (both genders)" },
            { "sTitle": "Male %" },
            { "sTitle": "Female %" },
            { "sTitle": "Males per 100 females" }
        ]

    });
})(jQuery);
}

最佳答案

您需要对fnDrawCallback进行更改，如下所示：

(function($) {
$('#data').html('<table width="100%" cellspacing="3" cellpadding="0" id="data-entry"></table>');
$('#data-entry').dataTable({
    "bProcessing": true,
    "bScrollInfinite": true,
    "bScrollCollapse": true ,
    "bAutoWidth": false,
    "bDestroy": true,
    "iDisplayLength": -1,
    "sDom": '<"top">rt<"bottom">',
    "aaSorting": [],
    "sAjaxSource": "/CensusDatabase/database_scripts/NationalAgeGender.php",
    "aoColumns": [
        { "sTitle": "Age group" },
        { "sTitle": "Total population (both genders)" },
        { "sTitle": "Male population" },
        { "sTitle": "Female population" },
        { "sTitle": "% (both genders)" },
        { "sTitle": "Male %" },
        { "sTitle": "Female %" },
        { "sTitle": "Males per 100 females" }
    ],
    "fnDrawCallback": function () {
         $('#data-entry thead').html('');
     }

});
})(jQuery);

让我知道！

关于javascript - 如何使用DataTables清除所有列标题，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/16290987/