react获取设备高_获取React中组件的高度

I have 4 columns, none of whose height is fixed, and I need to find the height of these columns so that the height of the largest column can be set to the other three. How can I do this with React and not using the 'minHeight' css?

I am a newbie in React and the closest question I found here was ReactJS get rendered component height.

Also I found this link which says that this could be done by getting the DOMNode and using the Refs, but I'm with no success.

解决方案

You can just use the ref callback and access the DOMNode inside it.

class Example extends React.Component {

constructor(props) {

super(props);

this.state = {

height: null

};

this.columns = ['hello',

'this is a bit more text',

'this is a bit more text ... and even more'];

}

render(){

return

}

calcHeight(node) {

if (node && !this.state.height) {

this.setState({

height: node.offsetHeight

});

}

}

}

React.render(, document.getElementById('container'));