如何添加borderTop以反应材质UI表?

您忘记定义 borderStyle 所有物

const styles = theme => {
    root : { borderTopWidth: 1, borderColor: 'red',borderStyle: 'solid'} // or borderTop: '1px solid red'
}

...

class TableComponent ...

{ classes } = this.props; 

<Table className={classes.root}>
</Table

export default withStyles(styles)(TableComponent)

或者您可以只添加内联样式,如

<Table style={{borderTop: '1px solid red'}}>
</Table>

@Shroy已经回答了这个问题。但我一直在努力只添加 Right Border

如何仅在单元格的一侧添加边框。

const styles = theme => {
    tableRightBorder : { borderWidth: 0, borderWidth: 1, borderColor: 'red',borderStyle: 'solid'} // or borderTop: '1px solid red'
}

...

class TableComponent ...

{ classes } = this.props; 

<Table >
    <TableHead>
        <TableRow >
            <TableCell>Column 1</TableCell>
            <TableCell>Column 2</TableCell>
        </TableRow>
    </TableHead>
    <TableBody>
        <TableRow>
            <TableCell className={classes.tableRightBorder}>Cell 1</TableCell>
            <TableCell>Cell 2</TableCell>
        </TableRow>
    </TableBody>
</Table>

export default withStyles(styles)(TableComponent)

看起来是这样的。

要获取上图的完整工作组件,请尝试下表

import React from 'react';
import PropTypes from 'prop-types';
import { makeStyles } from '@material-ui/styles';

import {
    Table,
    TableBody,
    TableCell,
    TableHead,
    TableRow,
} from '@material-ui/core';
import { connect } from 'react-redux';

const useStyles = makeStyles(theme => ({
    root: {},
    tableRightBorder: {
        borderWidth: 0,
        borderRightWidth: 1,
        borderColor: 'black',
        borderStyle: 'solid',
    },
}));

const DataTable = props => {
    const classes = useStyles();

    return (
        <Table>
            <TableHead>
                <TableRow>
                    <TableCell>
                        Column 1
                    </TableCell>
                    <TableCell>Column 2</TableCell>
                </TableRow>
            </TableHead>
            <TableBody>
                <TableRow>
                    <TableCell className={classes.tableRightBorder}>
                        Cell 1
                    </TableCell>
                    <TableCell>Cell 2</TableCell>
                </TableRow>
            </TableBody>
        </Table>
    );
};

DataTable.propTypes = {
    className: PropTypes.string,
};

function mapStateToProps() {}

export default connect(mapStateToProps, {})(DataTable);