如何使用每页显示一行的 Material UI 表？

Question

我正在尝试使用材质 ui 表来显示每页单行的内容。

我可以加载页面并显示第一行，但下一个处理程序移动到后续页面但不呈现内容。

我正在尝试找到一个示例，说明如何使用表格分页选项每页显示一行。

目前我有：

import React from 'react';
import PropTypes from 'prop-types';
import { makeStyles, useTheme } from '@material-ui/core/styles';
import Table from '@material-ui/core/Table';
import TableBody from '@material-ui/core/TableBody';
import TableCell from '@material-ui/core/TableCell';
import TableContainer from '@material-ui/core/TableContainer';
import TableFooter from '@material-ui/core/TableFooter';
import TablePagination from '@material-ui/core/TablePagination';
import TableRow from '@material-ui/core/TableRow';
import Paper from '@material-ui/core/Paper';
import IconButton from '@material-ui/core/IconButton';
import FirstPageIcon from '@material-ui/icons/FirstPage';
import KeyboardArrowLeft from '@material-ui/icons/KeyboardArrowLeft';
import KeyboardArrowRight from '@material-ui/icons/KeyboardArrowRight';
import LastPageIcon from '@material-ui/icons/LastPage';
import './styles.css';

const useStyles1 = makeStyles((theme) => ({
  root: {
    flexShrink: 0,
    marginLeft: theme.spacing(2.5),
  },
}));

function TablePaginationActions(props) {
  const classes = useStyles1();
  const theme = useTheme();
  const { count, page, rowsPerPage, onChangePage } = props;

  const handleFirstPageButtonClick = (event) => {
    onChangePage(event, 0);
  };

  const handleBackButtonClick = (event) => {
    onChangePage(event, page - 1);
  };

  const handleNextButtonClick = (event) => {
    onChangePage(event, page + 1);
  };

  const handleLastPageButtonClick = (event) => {
    onChangePage(event, Math.max(0, Math.ceil(count / rowsPerPage) - 1));
  };

  return (
    <div className={classes.root}>
      <IconButton
        onClick={handleFirstPageButtonClick}
        disabled={page === 0}
        aria-label="first page"
      >
        {theme.direction === 'rtl' ? <LastPageIcon /> : <FirstPageIcon />}
      </IconButton>
      <IconButton onClick={handleBackButtonClick} disabled={page === 0} aria-label="previous page">
        {theme.direction === 'rtl' ? <KeyboardArrowRight /> : <KeyboardArrowLeft />}
      </IconButton>
      <IconButton
        onClick={handleNextButtonClick}
        disabled={page >= Math.ceil(count / rowsPerPage) - 1}
        aria-label="next page"
      >
        {theme.direction === 'rtl' ? <KeyboardArrowLeft /> : <KeyboardArrowRight />}
      </IconButton>
      <IconButton
        onClick={handleLastPageButtonClick}
        disabled={page >= Math.ceil(count / rowsPerPage) - 1}
        aria-label="last page"
      >
        {theme.direction === 'rtl' ? <FirstPageIcon /> : <LastPageIcon />}
      </IconButton>
    </div>
  );
}

TablePaginationActions.propTypes = {
  count: PropTypes.number.isRequired,
  onChangePage: PropTypes.func.isRequired,
  page: PropTypes.number.isRequired,
  
};

function createData(number, icon, heading, explanation) {
  return { number, icon, heading, explanation };
}

const rows = [
    createData(1, 'Cupcake', 305, 3.7),
    createData(2, 'Donut', 452, 25.0),
    createData(3, 'Eclair', 262, 16.0),
    
  ].sort((a, b) => (a.number < b.number ? -1 : 1));
  
const useStyles2 = makeStyles({
  table: {
    // minWidth: 500,
  },
});

export default function CustomPaginationActionsTable() {
  const classes = useStyles2();
  const [page, setPage] = React.useState(0);
  const [rowsPerPage, setRowsPerPage] = React.useState(1);

//   const emptyRows = rowsPerPage - Math.min(rowsPerPage, rows.length - page * rowsPerPage);

  const handleChangePage = (event, newPage) => {
    setPage(newPage);
  };


  return (
    <TableContainer component={Paper}>
      <Table className={classes.table} aria-label="The design studio supports research">
        <TableBody>
          {(rowsPerPage > 0
            ? rows.slice(page * rowsPerPage, page * rowsPerPage + rowsPerPage)
            : rows
          ).map((row) => (
            <TableRow key={row.number}>
              <TableCell  align="right">
                {row.icon}
              </TableCell>
              <TableCell component="th" scope="row" style={{ width: "80%" }}>
                {row.heading}
                {row.explanation}
              </TableCell>
              
              
            </TableRow>
          ))}

          
        </TableBody>
        <TableFooter>
          <TableRow>
                <TablePagination
                colSpan={3}
                
                rowsPerPage={rowsPerPage}
                rowsPerPageOptions={[1]} 
                onChangePage={handleChangePage}
                
                ActionsComponent={TablePaginationActions}
                />
          </TableRow>
          </TableFooter>
          </Table>
    </TableContainer>
  );
}

第 1 页呈现：

第 2 页呈现：

我需要做什么才能在后续页面中呈现行内容？

Answer 1

我认为您的问题在于页面更改，因为当我运行您的代码时，我不断收到页面的 NaN。我认为这会在您使用切片时弄乱您的代码（这是正确的方法），但是您切片不存在的值会干扰您的额外行切割。这就是为什么您的代码仅适用于第一页而不适用于其余部分的原因。

我会检查一下： https://stackoverflow.com/a/60294052/12403162