twitter-bootstrap 数据表隐藏的 Bootstrap 下拉菜单
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/18138785/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
提示：将鼠标放在中文语句上可以显示对应的英文。显示中英文
时间：2020-10-21 17:54:09 来源:igfitidea点击:
Bootstrap's dropdown hidden by datatables
提问by Juliano Nunes Silva Oliveira
I'm using Twitter Bootstrap to create a button with a DropDown menu for each row in a DataTables grid, but the data container from DataTables is using "overflow: hidden" what is making the DropDown to be cut.
我正在使用 Twitter Bootstrap 为 DataTables 网格中的每一行创建一个带有下拉菜单的按钮，但是来自 DataTables 的数据容器正在使用“溢出：隐藏”是什么使 DropDown 被剪切。
I cannot just switch to "overflow: auto" as this will cause to appear an unnecessary vertical scrollbar.
我不能只切换到“溢出：自动”，因为这会导致出现不必要的垂直滚动条。
Here is a JSFiddle
这是一个JSFiddle
HTML
HTML
<table cellpadding="0" cellspacing="0" border="0" class="pretty" id="example"></table>
JS
JS
/* API method to get paging information */
$.fn.dataTableExt.oApi.fnPagingInfo = function (oSettings) {
return {
"iStart": oSettings._iDisplayStart,
"iEnd": oSettings.fnDisplayEnd(),
"iLength": oSettings._iDisplayLength,
"iTotal": oSettings.fnRecordsTotal(),
"iFilteredTotal": oSettings.fnRecordsDisplay(),
"iPage": oSettings._iDisplayLength === -1 ? 0 : Math.ceil(oSettings._iDisplayStart / oSettings._iDisplayLength),
"iTotalPages": oSettings._iDisplayLength === -1 ? 0 : Math.ceil(oSettings.fnRecordsDisplay() / oSettings._iDisplayLength)
};
}
/* Bootstrap style pagination control */
$.extend($.fn.dataTableExt.oPagination, {
"bootstrap": {
"fnInit": function (oSettings, nPaging, fnDraw) {
var oLang = oSettings.oLanguage.oPaginate;
var fnClickHandler = function (e) {
e.preventDefault();
if (oSettings.oApi._fnPageChange(oSettings, e.data.action)) {
fnDraw(oSettings);
}
};
$(nPaging).addClass('pagination').append(
'<ul>' +
'<li class="prev disabled"><a href="#">← ' + oLang.sPrevious + '</a></li>' +
'<li class="next disabled"><a href="#">' + oLang.sNext + ' → </a></li>' +
'</ul>');
var els = $('a', nPaging);
$(els[0]).bind('click.DT', {
action: "previous"
}, fnClickHandler);
$(els[1]).bind('click.DT', {
action: "next"
}, fnClickHandler);
},
"fnUpdate": function (oSettings, fnDraw) {
var iListLength = 5;
var oPaging = oSettings.oInstance.fnPagingInfo();
var an = oSettings.aanFeatures.p;
var i, j, sClass, iStart, iEnd, iHalf = Math.floor(iListLength / 2);
if (oPaging.iTotalPages < iListLength) {
iStart = 1;
iEnd = oPaging.iTotalPages;
} else if (oPaging.iPage <= iHalf) {
iStart = 1;
iEnd = iListLength;
} else if (oPaging.iPage >= (oPaging.iTotalPages - iHalf)) {
iStart = oPaging.iTotalPages - iListLength + 1;
iEnd = oPaging.iTotalPages;
} else {
iStart = oPaging.iPage - iHalf + 1;
iEnd = iStart + iListLength - 1;
}
for (i = 0, iLen = an.length; i < iLen; i++) {
// Remove the middle elements
$('li:gt(0)', an[i]).filter(':not(:last)').remove();
// Add the new list items and their event handlers
for (j = iStart; j <= iEnd; j++) {
sClass = (j == oPaging.iPage + 1) ? 'class="active"' : '';
$('<li ' + sClass + '><a href="#">' + j + '</a></li>')
.insertBefore($('li:last', an[i])[0])
.bind('click', function (e) {
e.preventDefault();
oSettings._iDisplayStart = (parseInt($('a', this).text(), 10) - 1) * oPaging.iLength;
fnDraw(oSettings);
});
}
// Add / remove disabled classes from the static elements
if (oPaging.iPage === 0) {
$('li:first', an[i]).addClass('disabled');
} else {
$('li:first', an[i]).removeClass('disabled');
}
if (oPaging.iPage === oPaging.iTotalPages - 1 || oPaging.iTotalPages === 0) {
$('li:last', an[i]).addClass('disabled');
} else {
$('li:last', an[i]).removeClass('disabled');
}
}
}
}
});
/* Table initialisation */
$(document).ready(function () {
$('#example').dataTable({
"aaData": [
/* Reduced data set */ ['<div class="btn-group" style="float: left">' +
'<a class="btn btn-small dropdown-toggle" data-toggle="dropdown" href="#">Actions' +
'<span class="caret"></span>' +
'</a>' +
'<ul class="dropdown-menu">' +
'<li><a href="#">Approve</a></li>' +
'<li><a href="#">View</a></li>' +
'</ul>' +
'</div>' +
'<a href="#" id="editButton" class="btn btn-small"><i class="icon-pencil"></i></a>' +
'<a href="#" class="btn btn-small deleteButton"><i class="icon-trash"></i></a>', "Internet Explorer 4.0", "Win 95+", 4, "X"],
['<div class="btn-group" style="float: left">' +
'<a class="btn btn-small dropdown-toggle" data-toggle="dropdown" href="#">Actions' +
'<span class="caret"></span>' +
'</a>' +
'<ul class="dropdown-menu">' +
'<li><a href="#">Approve</a></li>' +
'<li><a href="#">View</a></li>' +
'</ul>' +
'</div>' +
'<a href="#" id="editButton" class="btn btn-small"><i class="icon-pencil"></i></a>' +
'<a href="#" class="btn btn-small deleteButton"><i class="icon-trash"></i></a>', "Internet Explorer 5.0", "Win 95+", 5, "C"],
['<div class="btn-group" style="float: left">' +
'<a class="btn btn-small dropdown-toggle" data-toggle="dropdown" href="#">Actions' +
'<span class="caret"></span>' +
'</a>' +
'<ul class="dropdown-menu">' +
'<li><a href="#">Approve</a></li>' +
'<li><a href="#">View</a></li>' +
'</ul>' +
'</div>' +
'<a href="#" id="editButton" class="btn btn-small"><i class="icon-pencil"></i></a>' +
'<a href="#" class="btn btn-small deleteButton"><i class="icon-trash"></i></a>', "Internet Explorer 5.5", "Win 95+", 5.5, "A"],
['<div class="btn-group" style="float: left">' +
'<a class="btn btn-small dropdown-toggle" data-toggle="dropdown" href="#">Actions' +
'<span class="caret"></span>' +
'</a>' +
'<ul class="dropdown-menu">' +
'<li><a href="#">Approve</a></li>' +
'<li><a href="#">View</a></li>' +
'</ul>' +
'</div>' +
'<a href="#" id="editButton" class="btn btn-small"><i class="icon-pencil"></i></a>' +
'<a href="#" class="btn btn-small deleteButton"><i class="icon-trash"></i></a>', "Internet Explorer 6.0", "Win 98+", 6, "A"],
['<div class="btn-group" style="float: left">' +
'<a class="btn btn-small dropdown-toggle" data-toggle="dropdown" href="#">Actions' +
'<span class="caret"></span>' +
'</a>' +
'<ul class="dropdown-menu">' +
'<li><a href="#">Approve</a></li>' +
'<li><a href="#">View</a></li>' +
'</ul>' +
'</div>' +
'<a href="#" id="editButton" class="btn btn-small"><i class="icon-pencil"></i></a>' +
'<a href="#" class="btn btn-small deleteButton"><i class="icon-trash"></i></a>', "Internet Explorer 7.0", "Win XP SP2+", 7, "A"],
['<div class="btn-group" style="float: left">' +
'<a class="btn btn-small dropdown-toggle" data-toggle="dropdown" href="#">Actions' +
'<span class="caret"></span>' +
'</a>' +
'<ul class="dropdown-menu">' +
'<li><a href="#">Approve</a></li>' +
'<li><a href="#">View</a></li>' +
'</ul>' +
'</div>' +
'<a href="#" id="editButton" class="btn btn-small"><i class="icon-pencil"></i></a>' +
'<a href="#" class="btn btn-small deleteButton"><i class="icon-trash"></i></a>', "Firefox 1.5", "Win 98+ / OSX.2+", 1.8, "A"],
['<div class="btn-group" style="float: left">' +
'<a class="btn btn-small dropdown-toggle" data-toggle="dropdown" href="#">Actions' +
'<span class="caret"></span>' +
'</a>' +
'<ul class="dropdown-menu">' +
'<li><a href="#">Approve</a></li>' +
'<li><a href="#">View</a></li>' +
'</ul>' +
'</div>' +
'<a href="#" id="editButton" class="btn btn-small"><i class="icon-pencil"></i></a>' +
'<a href="#" class="btn btn-small deleteButton"><i class="icon-trash"></i></a>', "Firefox 2", "Win 98+ / OSX.2+", 1.8, "A"],
['<div class="btn-group" style="float: left">' +
'<a class="btn btn-small dropdown-toggle" data-toggle="dropdown" href="#">Actions' +
'<span class="caret"></span>' +
'</a>' +
'<ul class="dropdown-menu">' +
'<li><a href="#">Approve</a></li>' +
'<li><a href="#">View</a></li>' +
'</ul>' +
'</div>' +
'<a href="#" id="editButton" class="btn btn-small"><i class="icon-pencil"></i></a>' +
'<a href="#" class="btn btn-small deleteButton"><i class="icon-trash"></i></a>', "Firefox 3", "Win 2k+ / OSX.3+", 1.9, "A"]
],
"aoColumns": [{
"sTitle": "Engine"
}, {
"sTitle": "Browser"
}, {
"sTitle": "Platform"
}, {
"sTitle": "Version",
"sClass": "center"
}, {
"sTitle": "Grade",
"sClass": "center"
}],
'sScrollX': "100%",
'sScrollXInner': "150%",
'bScrollCollapse': true,
'bAutoWidth': false,
'bDeferRender': true,
'bLengthChange': false, "sPaginationType": "bootstrap",
"oLanguage": {
"sLengthMenu": "_MENU_ records per page"
}
});
$('.acoes').dropdown();
});
采纳答案by chris-l
Ok, after the comments we had, I realized what you want:
好的，在我们发表评论后，我意识到你想要什么：
You have a <div>element with overflow:auto, and you want that an element inside of that <div>(the <ul>where the menu is), to "escape" from the overflow rule and appear floating, overriding the overflow rule from its ancestor.
您有一个<div>带有的元素overflow:auto，并且您希望其中的一个元素<div>（<ul>菜单所在的位置）从溢出规则中“逃脱”并显示为浮动，从而覆盖其祖先的溢出规则。
But I'm afraid that is not possible. The closest thing you could do is:
但恐怕这是不可能的。你可以做的最接近的事情是：
- Use javascript to create the
<ul>with the menu outsidethe<div>withoverflow:auto, and then use position absolute to set it where it should go, or - Use javascript to auto scroll at the bottom once that dropdown menu is activated, by adding something like an event listener to the the last dropdown.
- 使用JavaScript来创建
<ul>与菜单之外的<div>与overflow:auto，然后使用绝对设置它，它应该去的位置，或 - 激活下拉菜单后，使用 javascript 在底部自动滚动，方法是在最后一个下拉菜单中添加类似事件侦听器的内容。
The second option seems more elegant and less 'hackish'. (Personally I would just ignore that problem, but if I have to choose, I would go for the second option)
第二种选择似乎更优雅，更少“黑客”。（我个人会忽略这个问题，但如果我必须选择，我会选择第二个选项）
回答by kesm0
I got the same problem ! Resolved removing overflow properties in component.css
我遇到了同样的问题！解决了在 component.css 中删除溢出属性的问题
.table-scrollable {
width: 100%;
/* overflow-x: auto;
overflow-y: hidden;*/
border: 1px solid #dddddd;
margin: 10px 0 !important;
}
Or add to your custom.css (called after bootstrap)
或添加到您的 custom.css （在引导后调用）
.table-scrollable {
overflow-x: visible;
overflow-y: visible;
}
回答by Eric V.
This worked for me : Datatable + fixed headers + bootstrap dropdown in header
这对我有用：数据表+固定标题+标题中的引导下拉列表
.dataTables_scrollHead{
overflow: visible !important;
}
Added to custom css after all others
在所有其他人之后添加到自定义 css
回答by Jonathas Morais
Override DataTable css rule for the .dataTables_scrollHead selector worked for me
覆盖 .dataTables_scrollHead 选择器的 DataTable css 规则对我有用
.dataTables_scrollHead{
position: static !important;
}
