得到一个课程并将一个事件返回给父母。我想获得触摸的按钮编号(凸起按钮上的标签)。我确实返回了这个事件,但是当我在console.log()它时,我找不到我想要的东西。它包含一个Handler(对象),Target(SyntheticUIEvent)和IsRevoked(bool)。
interface INumberButtonRow {
row: number;
handleButtonClicked: any;
}
export class NumberButtonRow extends React.Component<INumberButtonRow, any> {
render() {
// Create button with a number label
return (<NumberButton buttonClicked={this.handleButtonClicked} number={1} />);
}
// Get number from onTouchTap or from number
handleButtonClicked(onTouchTapEvent) {
console.log(onTouchTapEvent)
}
}
interface INumberButtonProps {
number: number;
buttonClicked: any;
}
export class NumberButton extends React.Component<INumberButtonProps, any> {
render() {
let number = this.props.number.toString(10)
return <RaisedButton label={number} onTouchTap={this.props.buttonClicked}/>;
}
}
答案 0 :(得分:1)
onTouchTapEvent.target
应该是按钮元素,您应该可以从中获取标签(您需要将其转换为any
)。
但我认为这更好:
export class NumberButtonRow extends React.Component<INumberButtonRow, any> {
...
handleButtonClicked(label: string) {
console.log(label)
}
}
export class NumberButton extends React.Component<INumberButtonProps, any> {
render() {
return <RaisedButton label={number} onTouchTap={() => {
this.props.buttonClicked(this.props.number.toString(10));
}}/>;
}
}