Javascript 使用jquery发布构建选择/下拉选项组
我想在JQuery的下拉列表中添加Javascript 使用jquery发布构建选择/下拉选项组,javascript,jquery,Javascript,Jquery,我想在JQuery的下拉列表中添加。选项正常工作,但我无法使选项组工作 HTML: JQuery: $("#DropDownID") colorBuild(function (result) { var Color = result; for (var i = 0; i < Color.Data.length; i++) { $("#DropDownID").append($("<optgroup></optgroup>").a
。选项正常工作,但我无法使选项组工作
HTML:
JQuery:
$("#DropDownID")
colorBuild(function (result) {
var Color = result;
for (var i = 0; i < Color.Data.length; i++) {
$("#DropDownID").append($("<optgroup></optgroup>").attr('label', Color.Data[i].ColorText)); //<-- This is my issue
$("#DropDownID").append($("<option></option>").val(Color.Data[i].RgbValue).text(Color.Data[i].ColorText).html(Color.Data[i].ColorName)); //<-- This is working fine
}
});
$(“#DropDownID”)
颜色构建(函数(结果){
var颜色=结果;
对于(var i=0;i $(“#DropDownID”).append($(“”).attr('label',Color.Data[i].ColorText));//使用label命名组,然后将每个选项添加到组中
$("#DropDownID")
colorBuild(function (result) {
var Color = result;
//create a constant for element
const $sel = $('#DropDownID');
//create a variable to hold our optgroup
var group = $('<optgroup/>');
//assign label to optgroup and append to select element
group.attr('label', 'Foo2').appendTo($sel);
for (var i = 0; i < Color.Data.length; i++) {
//probably only need .html here, anyway, append to group
$('<option />').val(Color.Data[i].RgbValue).text(Color.Data[i].ColorText).html(Color.Data[i].ColorName).appendTo(group);
}
}
$(“”).val('Foo2')
此optgroup
不能包含简单值。嗨,布莱恩,谢谢你的回答。不过我需要optgroup作为变量。很抱歉,我的问题不清楚。我尝试使用group.attr('label',Color.Data[I].ColorText.).appendTo($sel)
在for循环中,但它不起作用。要在“函数GetSelectedItem(el)”中获取所选的optgroup,我尝试将您的解决方案作为静态解决方案,但仍然得到了未定义的。
{element: n.fn.init(1), index: 0, value: "df514f", label: "Red", optgroup: "Foo", …} //<-- this is coming from static HTML
56d6736dfe2cf81830b7ec0f:124 {element: n.fn.init(1), index: 1, value: "df514f", label: "Red", optgroup: "", …} //<-- I want to be able to add a value here with JQuery code above
56d6736dfe2cf81830b7ec0f:124 {element: n.fn.init(1), index: 2, value: "CD69C9", label: "Orchild", optgroup: "", …}
function GetSelectedItem(el)
{
var e = document.getElementById(el);
color = "The Value is: " + e.options[e.selectedIndex].value + " and text is: " + e.options[e.selectedIndex].text;
colorName = e.options[e.selectedIndex].text;
colorValue = e.options[e.selectedIndex].value;
optgroupValue = e.options[e.selectedIndex].optgroup; //<-- this is resolving as undefined
}
$("#DropDownID")
colorBuild(function (result) {
var Color = result;
//create a constant for element
const $sel = $('#DropDownID');
//create a variable to hold our optgroup
var group = $('<optgroup/>');
//assign label to optgroup and append to select element
group.attr('label', 'Foo2').appendTo($sel);
for (var i = 0; i < Color.Data.length; i++) {
//probably only need .html here, anyway, append to group
$('<option />').val(Color.Data[i].RgbValue).text(Color.Data[i].ColorText).html(Color.Data[i].ColorName).appendTo(group);
}
}
optGroup = e.options[this.selectedIndex].parentNode.label