multiple-select

问题 I am building an App and referring this link i implemented same code for my App, but i am getting error "Cannot read the property 'getSelectedItemsExt' of undefined". One more error is "submit" button is also not showing up. I have tried all the ways but failed. import React, { Component } from 'react'; import { AppRegistry, StyleSheet, TextInput, View, ListView, Alert, Button, Platform, ToastAndroid, TouchableOpacity, ActivityIndicator, Text, Picker, ScrollView } from 'react-native'; import

问题 I am building an App and referring this link i implemented same code for my App, but i am getting error "Cannot read the property 'getSelectedItemsExt' of undefined". One more error is "submit" button is also not showing up. I have tried all the ways but failed. import React, { Component } from 'react'; import { AppRegistry, StyleSheet, TextInput, View, ListView, Alert, Button, Platform, ToastAndroid, TouchableOpacity, ActivityIndicator, Text, Picker, ScrollView } from 'react-native'; import

问题 I am building an App and referring this link i implemented same code for my App, but i am getting error "Cannot read the property 'getSelectedItemsExt' of undefined". One more error is "submit" button is also not showing up. I have tried all the ways but failed. import React, { Component } from 'react'; import { AppRegistry, StyleSheet, TextInput, View, ListView, Alert, Button, Platform, ToastAndroid, TouchableOpacity, ActivityIndicator, Text, Picker, ScrollView } from 'react-native'; import

问题 I am building an App and referring this link i implemented same code for my App, but i am getting error "Cannot read the property 'getSelectedItemsExt' of undefined". One more error is "submit" button is also not showing up. I have tried all the ways but failed. import React, { Component } from 'react'; import { AppRegistry, StyleSheet, TextInput, View, ListView, Alert, Button, Platform, ToastAndroid, TouchableOpacity, ActivityIndicator, Text, Picker, ScrollView } from 'react-native'; import

问题 I am using Material UI Multiple Select based on documentation example. I need to save id of the selected option and show name, so I render object. When I used example from documentation with placeholder, i see ids instead names of selected. See: https://codesandbox.io/s/kxz5yqmrzv?from-embed const names = [ { id: "a", name: "Oliver Hansen" }, { id: "b", name: "Van Henry" }, { id: "c", name: "April Tucker" }, { id: "d", name: "Ralph Hubbard" }, { id: "e", name: "Omar Alexander" }, { id: "f",

问题 I am using Material UI Multiple Select based on documentation example. I need to save id of the selected option and show name, so I render object. When I used example from documentation with placeholder, i see ids instead names of selected. See: https://codesandbox.io/s/kxz5yqmrzv?from-embed const names = [ { id: "a", name: "Oliver Hansen" }, { id: "b", name: "Van Henry" }, { id: "c", name: "April Tucker" }, { id: "d", name: "Ralph Hubbard" }, { id: "e", name: "Omar Alexander" }, { id: "f",

问题 For the iPhone, is it possible to configure a UITableView such that it will allow multiple-selection? I've tried overriding -setSelected:animated: for each UITableViewCell, but trying to fudge the required behavior is tricky as it's difficult to separate the real unselections from the ones where the UITableView thinks I've unselected due to selection of another cell! Hope someone can help! Thanks, Nick. 回答1: The best way to do this would be to a checkmark per selected row. You can do that by

问题 <select id="industryExpect" multiple="multiple"> <option value="1">item1</option> <option value="2">item2</option> <option value="3">item3</option> ... </select> I'm seeing something like : industryExpect=13&industryExpect=17&industryExpect=19 Say,there are multiple value with the same KEY, How to retrieve them from $_POST in PHP? 回答1: Give it a name with [] on the end, for example: <select id="industryExpect" name="industryExpect[]" multiple="multiple"> <option value="1">item1</option>

问题 I'm trying to create a form where the user can select multiple technician. When I add the line technician = forms.SelectMultiple(label='Technicians Involved') to my forms.py I get a big blank box with no data. How can I populate that box with the technicians from the User model? models.py class Incident(models.Model): user_id = models.ForeignKey(User, related_name='user') technician = models.ForeignKey(User, related_name='technician') capa = models.CharField('capa number', max_length=9) forms

问题 $('.excludeDaysPicker').selectpicker(); I have bootstrap selectpicker with 'multiple' choose option enabled. <select class="excludeDaysPicker" multiple title="Not Selected"> <option value="Monday" id="1" class="excludeDays">Monday</option> <option value="Tuesday" id="2" class="excludeDays">Tuesday</option> <option value="Wednesday" id="3" class="excludeDays">Wednesday</option> <option value="Thursday" id="4" class="excludeDays">Thursday</option> <option value="Friday" id="5" class=