Javascript Jquery从javascript中选择了一组选定的值
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Jquery chosen set selected values from javascript
提问by Beyto
I am using jquery chosen and I want to set selected values from javascript
我正在使用选择的 jquery，我想从 javascript 设置选定的值
Javascript/Jquery
Javascript/Jquery
$(document).ready(function() {
var selectedUserRole = document.getElementById('SelectedUserRole').value;
var str_array = selectedUserRole.split(',');
for (var i = 0; i < str_array.length; i++) {
// Trim the excess whitespace.
str_array[i] = str_array[i].replace(/^\s*/, "").replace(/\s*$/, "");
// Add additional code here, such as:
$("UserRole").prop('selectedValue', str_array[i]); // Here not working
}
});
Html:
网址：
@Html.DropDownList("UserRole", null, new { id = "UserRole", @class = "chosen-select", @multiple = "multiple", @placeholder = "Lütfen Rol Se?iniz", @style = "width: 250px;" })
str_array has values below
str_array 具有以下值
[5, 1, 7]
[5, 1, 7]
I want to set 5 value selected, 1 value selected 7 value selected
我想设置选择 5 个值，选择 1 个值 选择 7 个值
When I tried below
当我在下面尝试时
$("UserRole").prop('selectedValue', str_array[i]);
it is not working for me.
它不适合我。
回答by Arun P Johny
You need to trigger the chosen:updatedevent after setting the selectvalue
chosen:updated设置select值后需要触发事件
$("#UserRole").val(str_array[i]).trigger("chosen:updated");
To select multiple values
选择多个值
$(document).ready(function () {
var selectedUserRole = document.getElementById('SelectedUserRole').value;
var str_array = selectedUserRole.split(',');
for (var i = 0; i < str_array.length; i++) {
str_array[i] = str_array[i].replace(/^\s*/, "").replace(/\s*$/, "");
}
$("#UserRole").val(str_array).trigger("chosen:updated");
});
Demo: Fiddle
演示：小提琴
回答by Claus Lens
As of now this way is supported to update multiple values:
截至目前，支持这种方式来更新多个值：
$("#UserRole").val(str_array).trigger("chosen:updated");
回答by Kartikeya Khosla
Instead of
代替
$("UserRole").prop('selectedValue', str_array[i]);
It should be
它应该是
$("#UserRole").prop('selectedValue', str_array[i]); // include '#' id selector here
回答by I'm Geeker
Use this
用这个
You missed '#'
你错过了 '＃'
$("#UserRole").prop('selectedValue', str_array[i]);
