我正在使用window.print()
函数来打印div
的内容,但是当我调用print函数时,整个页面会冻结。请参见下面的代码:
render(){
return(
<div>
<div className='style' id='divToPrint'>
<p>Content to print here.</p>
<p>Content to print here.</p>
<p>Content to print here.</p>
</div>
<button className='someStyle' onClick={() => printDiv('divToPrint')}>Print</button
<button className='someStyle' onClick={this.somethingElse}>Something Else
</button>
</div>
)
}
打印功能:
function printDiv(divName) {
let printContents = document.getElementById(divName).innerHTML;
let originalContents = document.body.innerHTML;
document.body.innerHTML = printContents;
window.print();
document.body.innerHTML = originalContents;
}
打印并调用document.body.innerHTML = originalContents
之后,在刷新页面之前,我无法执行其他任何操作。整个页面冻结了。
我想念什么吗?
答案 0 :(得分:0)
您可以将内容保存在state
中,也可以将其保存在props
中并显示
class MyComponent extends React.Component {
state = {
content:''
}
printDiv = (content) => {
this.setState({content})
}
render() {
const {content} = this.state;
return (
<div>
<p>{content}</p>
<button className='someStyle' onClick={() => printDiv('divToPrint')}>Print</button>
</div>
)
}