前言
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起始
首先刚开始知道要书写一个这样的功能我的内心是比较崩溃的 完全没有思路 然后就打开官网的文档进行观看
开始
一开始准备写 打开官网的一个文档是4.0的 看起来也是一脸的蒙蔽 接着找到3的一个文档
代码部分
import { Table } from 'antd';
import { DndProvider, DragSource, DropTarget } from 'react-dnd';
import { HTML5Backend } from 'react-dnd-html5-backend';
import update from 'immutability-helper';
let dragingIndex = -1;
class BodyRow extends React.Component {
render() {
const { isOver, connectDragSource, connectDropTarget, moveRow, ...restProps } = this.props;
const style = { ...restProps.style, cursor: 'move' };
let { className } = restProps;
if (isOver) {
if (restProps.index > dragingIndex) {
className += ' drop-over-downward';
}
if (restProps.index < dragingIndex) {
className += ' drop-over-upward';
}
}
return connectDragSource(
connectDropTarget(<tr {...restProps} className={className} style={style} />),
);
}
}
const rowSource = {
beginDrag(props) {
dragingIndex = props.index;
return {
index: props.index,
};
},
};
const rowTarget = {
drop(props, monitor) {
const dragIndex = monitor.getItem().index;
const hoverIndex = props.index;
// Don't replace items with themselves
if (dragIndex === hoverIndex) {
return;
}
// Time to actually perform the action
props.moveRow(dragIndex, hoverIndex);
// Note: we're mutating the monitor item here!
// Generally it's better to avoid mutations,
// but it's good here for the sake of performance
// to avoid expensive index searches.
monitor.getItem().index = hoverIndex;
},
};
const DragableBodyRow = DropTarget('row', rowTarget, (connect, monitor) => ({
connectDropTarget: connect.dropTarget(),
isOver: monitor.isOver(),
}))(
DragSource('row', rowSource, connect => ({
connectDragSource: connect.dragSource(),
}))(BodyRow),
);
const columns = [
{
title: 'Name',
dataIndex: 'name',
key: 'name',
},
{
title: 'Age',
dataIndex: 'age',
key: 'age',
},
{
title: 'Address',
dataIndex: 'address',
key: 'address',
},
];
class DragSortingTable extends React.Component {
state = {
data: [
{
key: '1',
name: 'John Brown',
age: 32,
address: 'New York No. 1 Lake Park',
},
{
key: '2',
name: 'Jim Green',
age: 42,
address: 'London No. 1 Lake Park',
},
{
key: '3',
name: 'Joe Black',
age: 32,
address: 'Sidney No. 1 Lake Park',
},
],
};
components = {
body: {
row: DragableBodyRow,
},
};
moveRow = (dragIndex, hoverIndex) => {
const { data } = this.state;
const dragRow = data[dragIndex];
this.setState(
update(this.state, {
data: {
$splice: [[dragIndex, 1], [hoverIndex, 0, dragRow]],
},
}),
);
};
render() {
return (
<DndProvider backend={HTML5Backend}>
<Table
columns={columns}
dataSource={this.state.data}
components={this.components}
onRow={(record, index) => ({
index,
moveRow: this.moveRow,
})}
/>
</DndProvider>
);
}
}
ReactDOM.render(<DragSortingTable />, mountNode);
#components-table-demo-drag-sorting tr.drop-over-downward td {
border-bottom: 2px dashed #1890ff;
}
#components-table-demo-drag-sorting tr.drop-over-upward td {
border-top: 2px dashed #1890ff;
}
这是官网的示例 那么我们如何实现呢
第一步
第一步 引入第一个类
第二步
找准数据
第三步
进行数据的一个赋值我这边是dva.js赋值
第四步
回调或者确定按钮处理数据(这边是确定按钮处理值然后调接口)
实现效果
拖拽后
总结
标签:ant,const,monitor,index,上下行,design,key,props,hoverIndex From: https://blog.51cto.com/u_14476028/6192445人生本是一场修行 且行且珍惜