项目需求:react项目中,做一个可以通过鼠标拖动改变列宽的表格
npm install react-resizable --save
Resizable.js
import * as React from "react";
import { Table } from "antd";
import "antd/dist/antd.css";
import { Resizable } from "react-resizable";
import "./resizeable-table.less";
class ResizeableTitle extends React.Component {
render() {
const { onResize, width, onClick, ...restProps } = this.props;
if (!width) {
return <th {...restProps} />;
}
return (
<Resizable
width={width}
height={0}
onResizeStart={() => (this.resizing = true)}
onResizeStop={() => {
setTimeout(() => {
this.resizing = false;
});
}}
onResize={onResize}
>
<th
onClick={(...args) => {
if (!this.resizing && onClick) {
onClick(...args);
}
}}
{...restProps}
/>
</Resizable>
);
}
}
class ResizeableTable extends React.PureComponent {
constructor(props) {
super(props);
this.state = {
columns: props.columns
};
}
components = {
header: {
cell: ResizeableTitle
}
};
componentDidMount() {
const handlers = document.querySelectorAll(
".react-resizable .react-resizable-handle"
);
handlers.forEach((handler) =>
handler.addEventListener("click", (e) => {
return false;
})
);
}
render() {
const columns = this.state.columns.map((col, index) => ({
...col,
onHeaderCell: (column) => ({
width: column.width,
onResize: this.handleResize(index)
})
}));
const components = Object.assign(
{},
this.props.components,
this.components
);
return <Table
{...this.props}
pagination={false}
columns={columns}
components={components}
/>;
}
handleResize = (index) => (e, { size }) => {
e.stopImmediatePropagation();
this.setState(({ columns }) => {
const nextColumns = [...columns];
nextColumns[index] = {
...nextColumns[index],
width: size.width
};
return { columns: nextColumns };
});
};
}
export default ResizeableTable;
resizeable-table.less
:global {
.react-resizable {
position: relative;
}
.react-resizable-handle {
position: absolute;
width: 10px;
height: 100%;
bottom: 0;
right: -5px;
cursor: col-resize;
z-index: 999;
}
}
import ResizeableTable from "@app/utils/reactResizable/Resizeable"
class AccelerateAll extends Component{
...
render(){
const columns = [...]
const tableData= [...]
return(
<div className="Accelerate-table">
<ResizeableTable
scroll={{ y:500 }} //固定表格高度,使用滚动条
columns={columns} //表头数据
dataSource={tableData} //内容数据
/>
</div>
)
}
}