components

问题 is there any oportnunity to use a Vaadin Button in a HTML script? Id like to use the following button Button button_login = ew Button(); button_login.setID("buttonlogin"); and this button should be implement in the following script <div data-location="buttonlogin"></div> (Only an idea) Have so. an idea to bind the button in the html script? Thank! 回答1: I am quite unsure what you mean by html script . If it is something you can achieve using JavaScript then here is my try. Generally to execute

问题 So I've been stuck on this assignment for about a week now on this one part. I've asked a question about it here but due to my inexperience with React I still can't figure out how to solve it. The assignment is as follows: The goal of this project is to create an application that simulates the operation of a cafe. You will need to create components for the customer, barista, and coffee machine. Customer component This is the "User facing" component. Here you should have 3 option items that

问题 I've asked for more information about the error here: Should I ignore React warning: Input elements should not switch from uncontrolled to controlled?. But I'm still stuck.. So I have a case where I want to switch a time input field from holding it's own value to taking over a value from another time input field. I'm doing this using a simple 'locked' / 'unlocked' button. Clicking on that button allows me to choose whether the input field is locked (takes over value from others) or unlocked

问题 I have a Main class which I show an array to user, then in detail page user can edit each element which I'm passing using react navigation parameter. I want to edit my array in the detail class and save it using async storage. //Main.jsimport React from 'react'; import { StyleSheet , Text, View, TextInput, ScrollView, TouchableOpacity, KeyboardAvoidingView, AsyncStorage } from 'react-native' import Note from './Note' import detail from './Details' import { createStackNavigator,

问题 I want to make nested component clickable and to know on which component is clicked. I had tried to send variable but there are some issues. If I write function with this.clickMe() it will be invoked at component load. if the function is written in this way this.clickMe without rounded brackets, the click event is invoked but I can not pass a parameter. import React, { Component } from 'react'; import CategoryControlRow from './components/CategoryControlRow'; import './style.css'; /** *

问题 For the last few hours I have been searching high and low for a real table look-a-like component for the iPhone. Unfortunatly I'm still a newbie in iPhone land (more Android myself :P). I haven't found anything yet that comes even close. There is one example picture I found that exactly describes what I am looking for. Shame that it's made using the iUI html library: (See here) My question of course is wether anyone has ever seen such a table component somewhere. If it weren't for my extreme

问题 Followup from Return JSX from function I have a a component that needs to check for multiple options and return based on those options. Therefore I have created an outside function that is called in my component return statement to determine the format that will be returned: render() { const { policy } = this.props; let deployment = policy.Deployment; let value = policy.value; let policyLegend = deployment.policyLegend; let policyObj = this.valueToPolicy(policyLegend, value); console.log

问题 I have two tables in my database, one for admins (named Admins) and the other one for normal users, named : utilisateurs (in french). I know i have to use cakePHP's convention which says i must create a table named users, which has the fields username and password. But the problem is that i have two tables and not only one. Each one has its particular fields, so i really need them to stay separated. And even informations required to login are different depending on the user : admins need

问题 I have 2 components, I want to re-use one in the other so this is the component I want to re-use the ExpressionBuilderComponent: @Component({ selector: 'expression-builder', template: ` <div class="container"> <expression *ngFor="#expression of expressions" [prototypes]="prototypes" [expression]="expression" [expressions]="expressions"></expression> <a class="btn btn-primary" (click)="addExpression()"><i class="glyphicon glyphicon-plus"></i></a> </div> `, directives: [ExpressionComponent] })

问题 I want to render a split button into a column in a grid to perform actions on each row. I can't seem to figure out how to build a custom cell renderer that will accomplish this. Each cell will have the exact same split button, but will act on the id of the row the split button is in. 回答1: You need to setup a custom renderer for the column, have a look at this example: http://techmix.net/blog/2010/11/25/add-button-to-extjs-gridpanel-cell-using-renderer/ 来源： https://stackoverflow.com/questions