我正在选择菜单,我使用Select-2插件来自定义它。因此,我有一个问题,我尝试在输入字段中重新创建所选项目。因此,当您选择项目时,它在输入字段中显示为小灰名单项。
这是一个 FIDDLE ,它显示了我遇到的问题。
这是javascript代码我如何呈现我的输入字段:
var selectMenuItems = [
{id: 'restaurant', value: 'restaurant'},
{id: 'shopping', value: 'shopping'},
{id: 'toilet', value: 'toilet'}
]
function formatSelectItem (selectItem) {
if (!selectItem.id) { return selectItem.value; }
var $selectItem = $(
'<img src="img/markers/'+ selectItem.id.toLowerCase() +'.png"/>' +
'<span class="select-item-text">'+ selectItem.value+"</span>"
);
return $selectItem;
};
$("[name='select']").select2({
placeholder: "Selecteer een categorie",
templateResult: formatSelectItem,
data: selectMenuItems
}).on("change", function(e){
console.log(e);
$('.select-multiple :selected').each(function(i, selected) {
var selectedValue = $(selected).val();
$('.select2-selection__choice').text(selectedValue);
});
});
问题在于,当我选择一个项目时,它会在输入字段中显示文本,但如果我选择多个项目,则所有项目都将更改为最后选择的项目文本。我怎样才能将此.text()
绑定到该特定的选择项?
在插件Select-2 plugin的文档中,有一个名为&#34; Templating&#34;的示例。他们不必将文本或图像附加到所选项目..
答案 0 :(得分:2)
<强> Working fiddle 强>
您要查找的是每次循环$(this).val()
提供的选择值,并使用.select2-selection__choice
将值附加到.eq()
索引:
$("[name='select']").select2({
placeholder: "Selecteer een categorie",
templateResult: formatSelectItem,
data: selectMenuItems
}).on("change", function(e){
$.each($(this).val(), function(i, selected) {
$('.select2-selection__choice').eq(i).prepend(selected+' ');
});
});
注意:使用prepend()
代替tex()
来保留代码中的“X”。
希望这有帮助。
(function($) {
$(function() {
var selectMenuItems = [
{id: 'restaurant', value: 'restaurant'},
{id: 'shopping', value: 'shopping'},
{id: 'toilet', value: 'toilet'}
]
function formatSelectItem (selectItem) {
if (!selectItem.id) { return selectItem.value; }
var $selectItem = $(
'<img src="img/markers/'+ selectItem.id.toLowerCase() +'.png"/>' +
'<span class="select-item-text">'+ selectItem.value+"</span>"
);
return $selectItem;
};
$("[name='select']").select2({
placeholder: "Selecteer een categorie",
templateResult: formatSelectItem,
data: selectMenuItems
}).on("change", function(e){
$.each($(this).val(), function(i, selected) {
$('.select2-selection__choice').eq(i).prepend(selected+' ');
});
});
});
})(jQuery);
.flag-text { margin-left: 10px; }
.select2 {
width: 100% !important;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<link href="https://cdnjs.cloudflare.com/ajax/libs/select2/4.0.0/css/select2.min.css" rel="stylesheet"/>
<script src="https://cdnjs.cloudflare.com/ajax/libs/select2/4.0.0/js/select2.min.js"></script>
<select id="type" name="select" class="select-multiple" multiple="multiple" data-role="none"></select>
使用图片的小部件:
(function($) {
$(function() {
var selectMenuItems = [
{id: 'restaurant', value: 'restaurant', img: 'https://www.hughesinsurance.co.uk/img/front/map-marker.png'},
{id: 'shopping', value: 'shopping', img: 'http://king-of-truck.byclickeat.fr/media/cache/square_40/front/bundle/clickeat/img/map-marker.png'},
{id: 'toilet', value: 'toilet', img: 'http://www.onebabyowner.co.uk/sites/all/themes/onebabyowner/img/icon/map-marker.png'}
]
function formatSelectItem (selectItem) {
if (!selectItem.id) { return selectItem.value; }
var $selectItem = $(
'<img src="'+ selectItem.img +'"/>' +
'<span class="select-item-text">'+ selectItem.value+"</span>"
);
return $selectItem;
};
$("[name='select']").select2({
placeholder: "Selecteer een categorie",
templateResult: formatSelectItem,
data: selectMenuItems
}).on("change", function(e){
$.each($(this).val(), function(i, selected) {
$('.select2-selection__choice').eq(i).prepend(selected+' ');
});
});
});
})(jQuery);
.flag-text { margin-left: 10px; }
.select2 {
width: 100% !important;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<link href="https://cdnjs.cloudflare.com/ajax/libs/select2/4.0.0/css/select2.min.css" rel="stylesheet"/>
<script src="https://cdnjs.cloudflare.com/ajax/libs/select2/4.0.0/js/select2.min.js"></script>
<select id="type" name="select" class="select-multiple" multiple="multiple" data-role="none"></select>
答案 1 :(得分:1)
这是最简短的方法:
$('.select-multiple :selected').each(function(i, selected) {
$('.select2-selection__choice').eq(i).text($(this).val());
});
如果要在所选的选项中包含图像,请使用templateSelection
功能。您可以通过将templateSelection
选项设置为JavaScript函数来覆盖选择的显示。
(function($) {
$(function() {
var selectMenuItems = [
{id: 'restaurant', text: 'restaurant', img: 'http://www.freeiconspng.com/uploads/restaurant-icon-png-7.png'},
{id: 'shopping', text: 'shopping', img: 'http://www.pngall.com/wp-content/uploads/2016/04/Shopping-Free-PNG-Image.png'},
{id: 'toilet', text: 'toilet', img: 'http://www.freeiconspng.com/uploads/toilet-icon-png-32.png'}
]
function formatSelectItem (selectItem) {
if (!selectItem.id) { return selectItem.text; }
var $selectItem = $(
'<img src="'+ selectItem.img +'" width="50px" height="50px"/>' +
'<span class="select-item-text">'+ selectItem.text+"</span>"
);
return $selectItem;
};
function formatState (opt) {
if (!opt.id) {
return opt.text;
}
var $opt = $(
'<span><img src="'+opt.img +'" width="50px" height="50px"/>' + opt.text + '</span>'
);
return $opt;
};
$("[name='select']").select2({
placeholder: "Selecteer een categorie",
templateResult: formatSelectItem,
templateSelection: formatState,
data: selectMenuItems
});
});
})(jQuery);
.flag-text { margin-left: 10px; }
.select2 {
width: 100% !important;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<link href="https://cdnjs.cloudflare.com/ajax/libs/select2/4.0.0/css/select2.min.css" rel="stylesheet"/>
<script src="https://cdnjs.cloudflare.com/ajax/libs/select2/4.0.0/js/select2.min.js"></script>
<select id="type" name="select" class="select-multiple" multiple="multiple" data-role="none"></select>
答案 2 :(得分:0)
在您的代码中
$('.select-multiple :selected').each(function(i, selected) {
var selectedValue = $(selected).val();
$('.select2-selection__choice').text(selectedValue);
});
您需要将selectedValue
拆分为值并搜索每个值以放入适合该值索引的文本。
换句话说,将代码替换为:
$('.select-multiple :selected').each(function(i, selected) {
var selectedValue = $(this).val();
$('.select2-selection__choice').eq(i).text(selectedValue);
});
答案 3 :(得分:0)
我认为我必须使用jquery执行此操作,但当我将selectMenuItems Array
的{{1}}更改为value
时,插件会为我工作:
text
只是一个简单的修复,我认为我可以在那里设置任何属性