Question

我有选择名称slc_pc，我想通过jquery代码附加选项。

我尝试这些脚本。但它不起作用。

$("select[name='slc_pc']").append(new Option("Hello", "Hello", true, true).attr("abc",brand,"123",model));

Answer 1

如果您在select元素中添加ID“slc-pc”，就像它的基本形式一样：

kUTTypeMovie

Answer 2

尝试这个

您已在import kivy from kivy.app import App from kivy.uix.screenmanager import ScreenManager, Screen from kivy.properties import StringProperty, ObjectProperty, ListProperty from kivy.uix.listview import ListItemButton from kivy.adapters.listadapter import ListAdapter class DemoScreen1(Screen): pass class DemoScreen2(Screen): labText = StringProperty() def labelUpdater(self,newText): self.ids.labText.text = newText class MyListButton(ListItemButton): data = ListProperty() class MyListAdapter(ListAdapter): scr = ObjectProperty() def on_selection_change(self, *args): self.scr.ChangeScreen(self.selection[0].index) class AppScreenManager(ScreenManager): def ChangeScreen(self, option): if option == 0: print("Screen1") self.ids.screen2.labelUpdater("Screen 1 was pressed") else: print("Screen2") self.ids.screen2.labelUpdater("Screen 2 was pressed") self.current = "demoscreen2" class Tester(App): pass if __name__ == '__main__': Tester().run()之后添加)，并从上次删除(new Option("Hello", "Hello", true, true)

＆＃13;

$("select[name='slc_pc']").append(new Option("Hello", "Hello", true, true)).attr("abc", "brand", "123", "model");

＆＃13;

Answer 3

＆＃13;

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            br.close();
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＆＃13;

$(function(){
    var brand = 'test';
    var model = '123';
    
    var brand1 = 'abc';
    var model1 = '456';
  
   $(".slc_pc").append("<option value='hello' data-brand='" +brand+ "' data-model='" +model+ "'>hello</option><option value='hello1' data-brand='" +brand1+ "' data-model='" +model1+ "'>hello1</option>");
})

$(document).on("change",".slc_pc", function(){
   var option = $("option:selected", this);
   alert("value : "+ $(this).val() + ", brand : "+$(option).data('brand') + ", model : " + $(option).data('model'));
})

＆＃13;

可以通过类似的方式完成。

Answer 4

您的代码中存在一些错误。首先，要设置多个属性，需要将它们作为对象传递。其次，data属性的属性名称和值不正确。 brand＆amp; model应为财产，abc＆amp; 123应分别为其值。

new Option将创建一个没有attr方法的选项元素。您可以使用jQuery创建一个新元素。

这是正确的方法

$('select[name="slc_pc"]')
    .append($('<option />')  // Create new <option> element
    .val('Hello')            // Set value as "Hello"
    .text('Hello')           // Set textContent as "Hello"
    .prop('selected', true)  // Mark it selected
    .data({                  // Set multiple data-* attributes
        brand: 'abc',
        model: '123'
    });

在选择中添加选项并将数据属性添加到选项

4 个答案: