Reactjs 要将组件从侧栏拖到仪表板,但不从侧栏删除该项吗 import'/App.css'; 从“react dnd”导入{DndProvider,useDrag,useDrop}; 从“react-dnd-html5-backend”导入{HTML5Backend}; 常量MovableItem=({setIsFirstColumn})=>{ 常量[{isDraging},拖动]=使用拖动({ 项:{name:'Any custom name',type:'Our first type'}, 结束:(项目,监视器)=>{ const dropResult=monitor.getDropResult(); if(dropResult&&dropResult.name===“第1列”){ setIsFirstColumn(真) }否则{ setIsFirstColumn(false); } }, 收集:(监视器)=>({ IsDraging:monitor.IsDraging(), }), }); 常数不透明度=IsDraging?0.4:1; 返回( 我们将移动此项目 ) } const Column=({children,className,title})=>{ 常量[,drop]=useDrop({ 接受:“我们的第一类”, drop:()=>({name:title}), }); 返回( {title} {儿童} ) } 常量应用=()=>{ const[isFirstColumn,setIsFirstColumn]=useState(true); const[isSecondColumn,setIsSecondColumn]=useState(true); 常数项=; 返回( {/*包装将是“可拖动”和“可拖放”的组件*/} {isFirstColumn&&Item} {isFirstColumn&&Item} ); } 导出默认应用程序
解释 我基本上是想从侧栏拖动项目,然后放到仪表板上查看完整的组件,但是当我必须放到仪表板上时,我不想从侧栏上删除它,我如何使用react dnd实现这一点,或者有其他替代方法吗 多谢各位Reactjs 要将组件从侧栏拖到仪表板,但不从侧栏删除该项吗 import'/App.css'; 从“react dnd”导入{DndProvider,useDrag,useDrop}; 从“react-dnd-html5-backend”导入{HTML5Backend}; 常量MovableItem=({setIsFirstColumn})=>{ 常量[{isDraging},拖动]=使用拖动({ 项:{name:'Any custom name',type:'Our first type'}, 结束:(项目,监视器)=>{ const dropResult=monitor.getDropResult(); if(dropResult&&dropResult.name===“第1列”){ setIsFirstColumn(真) }否则{ setIsFirstColumn(false); } }, 收集:(监视器)=>({ IsDraging:monitor.IsDraging(), }), }); 常数不透明度=IsDraging?0.4:1; 返回( 我们将移动此项目 ) } const Column=({children,className,title})=>{ 常量[,drop]=useDrop({ 接受:“我们的第一类”, drop:()=>({name:title}), }); 返回( {title} {儿童} ) } 常量应用=()=>{ const[isFirstColumn,setIsFirstColumn]=useState(true); const[isSecondColumn,setIsSecondColumn]=useState(true); 常数项=; 返回( {/*包装将是“可拖动”和“可拖放”的组件*/} {isFirstColumn&&Item} {isFirstColumn&&Item} ); } 导出默认应用程序,reactjs,react-dnd,Reactjs,React Dnd,解释 我基本上是想从侧栏拖动项目,然后放到仪表板上查看完整的组件,但是当我必须放到仪表板上时,我不想从侧栏上删除它,我如何使用react dnd实现这一点,或者有其他替代方法吗 多谢各位 import './App.css'; import { DndProvider, useDrag, useDrop } from "react-dnd"; import { HTML5Backend } from "react-dnd-html5-backend";
import './App.css';
import { DndProvider, useDrag, useDrop } from "react-dnd";
import { HTML5Backend } from "react-dnd-html5-backend";
const MovableItem = ({ setIsFirstColumn }) => {
const [{ isDragging }, drag] = useDrag({
item: { name: 'Any custom name', type: 'Our first type' },
end: (item, monitor) => {
const dropResult = monitor.getDropResult();
if (dropResult && dropResult.name === 'Column 1') {
setIsFirstColumn(true)
} else {
setIsFirstColumn(false);
}
},
collect: (monitor) => ({
isDragging: monitor.isDragging(),
}),
});
const opacity = isDragging ? 0.4 : 1;
return (
<div ref={drag} className='movable-item' style={{ opacity }}>
We will move this item
</div>
)
}
const Column = ({ children, className, title }) => {
const [, drop] = useDrop({
accept: 'Our first type',
drop: () => ({ name: title }),
});
return (
<div ref={drop} className={className}>
{title}
{children}
</div>
)
}
const App = () => {
const [isFirstColumn, setIsFirstColumn] = useState(true);
const [isSecondColumn, setIsSecondColumn] = useState(true);
const Item = <MovableItem setIsFirstColumn={setIsFirstColumn} />;
return (
<div className="container">
{/* Wrap components that will be "draggable" and "droppable" */}
<DndProvider backend={HTML5Backend}>
<Column title='Column 1' className='column first-column'>
{isFirstColumn && Item}
</Column>
<Column title='Column 2' className='column second-column'>
{isFirstColumn && Item}
</Column>
</DndProvider>
</div>
);
}
export default App