#yyds干货盘点# ant design中 table的表格行的拖拽实现-CFANZ编程社区

最好的种树是十年前,其次是现在。歌谣每天一个前端小知识提醒你改好好学习了知乎博主 csdn博主 b站博主放弃很容易但是坚持一定很酷我是歌谣喜欢就一键三连咯你得点赞是对歌谣最大的鼓励微信公众号关注小歌谣

前言

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

重点

直接说说如何让实现当前这个功能上代码

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;
}