使用 bootstrap 和 jquery 更改弹出窗口的标题

这是链接的 html，即：

 <a href="javascript:void(0);" style="font-size: 3em; color: #222" class="popover-test" id="directNavPrev" data-title="Previous Result Row" data-content="Previous Result Row">
&laquo;</a>

是的，我正在调用 .popover() 进行初始化，并且弹出窗口工作得很好。我可以毫无问题地更新内容。只是不是标题。我尝试过“prev.data('title','new title')”，甚至尝试重新初始化“prev.popover({title:'new title'});”没有骰子...谢谢。

 function SetDirectNavigationPlaceholder() {
    //debugger;
    var item = $("#movementType :selected").val();
    var direct = $('#directNavigation');
    var prev = $('#directNavPrev');
    var next = $('#directNavNext');
    switch (item) {
        case "result":
            $('#bookTypeSection').addClass('hide');
            direct.val('Result Row from 1 - 150');
            prev.attr('data-title', "Previous Result Row");
            next.attr('data-title', "Next Result Row");
            prev.attr('data-content', "Check it! this will contain the information for the previous result<table><tr><td>blah</td><td>blah</td></tr><tr><td>blah</td><td>blah</td></tr><tr><td>blah</td><td>blah</td></tr><tr><td>blah</td><td>blah</td></tr></table>");
            next.attr('data-content', "Check it! this will contain the information for the next result<table><tr><td>blah</td><td>blah</td></tr></table>");
            break;
        case "instrument":
            $('#bookTypeSection').addClass('hide');
            direct.val('Instrument #');
            prev.attr('data-title', "Previous Instrument #");
            next.attr('data-title', "Next Instrument #");
            prev.attr('data-content', "Check it! this will contain the information for the previous <b>instrument</b><table><tr><td>blah</td><td>blah</td></tr></table>");
            next.attr('data-content', "Check it! this will contain the information for the next <b>instrument</b><table><tr><td>blah</td><td>blah</td></tr></table>");
            break;
        case "bookpage":
            $('#bookTypeSection').removeClass('hide');
            direct.val('Book/Page');
            prev.attr('data-title', "Previous Book/Page");
            next.attr('data-title', "Next Book/Page");
            prev.attr('data-content', "Check it! this will contain the information for the previous <b>book/page</b><table><tr><td>blah</td><td>blah</td></tr></table>");
            next.attr('data-content', "Check it! this will contain the information for the next <b>book/page</b><table><tr><td>blah</td><td>blah</td></tr></table>");
            break;
    }
    direct.css('color', '#aaa').not('#directNavigationHeader');
}

最简单的方法是：

     var newTitle = "Here's my new title";
     $('#MyExample').attr('data-original-title', newTitle);

希望有帮助！