最终实现的效果如下: 添加MenuDataSource.cs,字段ImageStyle是用来标识套用的样式 public class MenuGroup { public string GroupTitle { get; set; } public ObservableCollection<MenuItem> ItemContent { get; set; } } public class MenuItem { public string ImageUrl { get; set; } publ
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <
最近在React官网学习Handling Events这一章时,有一处不是很明白.代码如下: class Toggle extends React.Component { constructor(props) { super(props); this.state = {isToggleOn: true}; // This binding is necessary to make `this` work in the callback this.handleClick = this.handleC