我正在尝试使用材料-ui。我是react.js和material-ui的新手,并以某种方式设法通过一些东西,但不能使用SelectField。每当我使用SelectField组件时,我都会得到一个
未捕获的TypeError:无法读取undefinederror的属性'toUpperCase'。
我已按照以下方式编写:material-ui.com
这是我的selectField.jsx
文件:
var React = require('react');
var mui = require('material-ui');
var SelectField = mui.SelectField;
var ThemeManager = new mui.Styles.ThemeManager();
var Colors = mui.Styles.Colors;
var StyleResizable = mui.Mixins.StyleResizable;
var menuItems = [
{ payload: '1', text: 'Never' },
{ payload: '2', text: 'Every Night' },
{ payload: '3', text: 'Weeknights' },
{ payload: '4', text: 'Weekends' },
{ payload: '5', text: 'Weekly' },
];
var Main = React.createClass({
getInitialState: function() {
return { selectValue: undefined};
},
childContextTypes: {
muiTheme: React.PropTypes.object
},
getChildContext: function() {
return {
muiTheme: ThemeManager.getCurrentTheme()
};
},
render: function() {
return (
<SelectField
value={this.state.selectValue}
onChange={this._handleSelectValueChange}
floatingLabelText="Select Field"
menuItems={menuItems} />
);
},
_handleSelectValueChange: function(e) {
this.setState({
selectValue: e.target.value
});
}
});
module.exports = Main;
为什么输出错误的想法?其他材料-ui组件工作正常。
编辑:
这是我在app.jsx
档案中的父组件:
(function () {
var React = require('react');
var injectTapEventPlugin = require('react-tap-event-plugin');
var Main = require('./components/selectField.jsx');
window.React = React;
injectTapEventPlugin();
React.render(<Main />, document.body);
})();