Material-table -如果没有数据显示消息

Question

我使用的是材料表https://material-table.com/#/docs/get-started。但是，如果没有数据返回，我似乎找不到任何有关显示默认消息的信息？

我想知道有没有人知道我会怎么做。下面是我创建的测试表(使用假数据)。现在，如果数据是空的，我想要一条消息，用一个按钮来显示表数据将显示"create your ad now“的位置。

import React from 'react';
import { forwardRef } from 'react';
import MaterialTable from 'material-table';
import AddBox from '@material-ui/icons/AddBox';
import ArrowDownward from '@material-ui/icons/ArrowDownward';
import Check from '@material-ui/icons/Check';
import ChevronLeft from '@material-ui/icons/ChevronLeft';
import ChevronRight from '@material-ui/icons/ChevronRight';
import Clear from '@material-ui/icons/Clear';
import DeleteOutline from '@material-ui/icons/DeleteOutline';
import Edit from '@material-ui/icons/Edit';
import FilterList from '@material-ui/icons/FilterList';
import FirstPage from '@material-ui/icons/FirstPage';
import LastPage from '@material-ui/icons/LastPage';
import Remove from '@material-ui/icons/Remove';
import SaveAlt from '@material-ui/icons/SaveAlt';
import Search from '@material-ui/icons/Search';
import ViewColumn from '@material-ui/icons/ViewColumn';

export default function MaterialTableDemo() {

    const tableIcons = {
        Add: forwardRef((props, ref) => <AddBox {...props} ref={ref} />),
        Check: forwardRef((props, ref) => <Check {...props} ref={ref} />),
        Clear: forwardRef((props, ref) => <Clear {...props} ref={ref} />),
        Delete: forwardRef((props, ref) => <DeleteOutline {...props} ref={ref} />),
        DetailPanel: forwardRef((props, ref) => <ChevronRight {...props} ref={ref} />),
        Edit: forwardRef((props, ref) => <Edit {...props} ref={ref} />),
        Export: forwardRef((props, ref) => <SaveAlt {...props} ref={ref} />),
        Filter: forwardRef((props, ref) => <FilterList {...props} ref={ref} />),
        FirstPage: forwardRef((props, ref) => <FirstPage {...props} ref={ref} />),
        LastPage: forwardRef((props, ref) => <LastPage {...props} ref={ref} />),
        NextPage: forwardRef((props, ref) => <ChevronRight {...props} ref={ref} />),
        PreviousPage: forwardRef((props, ref) => <ChevronLeft {...props} ref={ref} />),
        ResetSearch: forwardRef((props, ref) => <Clear {...props} ref={ref} />),
        Search: forwardRef((props, ref) => <Search {...props} ref={ref} />),
        SortArrow: forwardRef((props, ref) => <ArrowDownward {...props} ref={ref} />),
        ThirdStateCheck: forwardRef((props, ref) => <Remove {...props} ref={ref} />),
        ViewColumn: forwardRef((props, ref) => <ViewColumn {...props} ref={ref} />)
      };

    const columns = {columns: [
        { title: 'Ad Name', field: 'name' },
        { title: 'Status', field: 'status' },
        { title: 'Formate', field: 'formate'},
        { title: 'Cost Type', field: 'costtype'},
        { title: 'Ad Listens', field: 'adlistens',  type: "numeric" },
        { title: 'Ads Served', field: 'adserved',  type: "numeric" },
        { title: 'Budget', field: 'budget',  type: "numeric" },
        { title: 'End Date', field: 'enddate',  type: "date" },
       
      ]};
   
  const data = { data: [
    { name: 'Test Ad', status: 'Pending', formate: 'Radio/Podcast', costtype: 'PPL', adlistens:0, adserved:0, budget:'$100', enddate:'02-02-2025' },
    { name: 'ZTest Ad', status: 'Pending', formate: 'Radio/Podcast', costtype: 'PPL', adlistens:0, adserved:0, budget:'$100', enddate:'02-05-2025' },
    { name: 'DTest Ad', status: 'Pending', formate: 'Radio/Podcast', costtype: 'PPL', adlistens:0, adserved:0, budget:'$100', enddate:'02-01-2025' },
  
]};

  
  return (
    <div style={{ maxWidth: "90%", margin:'5vh auto' }}>
    <MaterialTable
      title="Your Ads"
      icons={tableIcons}
      columns={columns.columns}
      data={data.data}
      /*editable={{
        onRowAdd: (newData) =>
          new Promise((resolve) => {
            setTimeout(() => {
              resolve();
              setState((prevState) => {
                const data = [...prevState.data];
                data.push(newData);
                return { ...prevState, data };
              });
            }, 600);
          }),
        onRowUpdate: (newData, oldData) =>
          new Promise((resolve) => {
            setTimeout(() => {
              resolve();
              if (oldData) {
                setState((prevState) => {
                  const data = [...prevState.data];
                  data[data.indexOf(oldData)] = newData;
                  return { ...prevState, data };
                });
              }
            }, 600);
          }),
        onRowDelete: (oldData) =>
          new Promise((resolve) => {
            setTimeout(() => {
              resolve();
              setState((prevState) => {
                const data = [...prevState.data];
                data.splice(data.indexOf(oldData), 1);
                return { ...prevState, data };
              });
            }, 600);
          }),
      }}*/
    />
    </div>
  );
}

Answer 1

您需要使用material表的component overriding来实现这一点。下面是一个重写body以在表格中放置一个按钮的示例(我没有添加任何CSS，所以它很难看)。

https://codesandbox.io/s/goofy-moore-h2fkg?file=/src/Table.jsx

Answer 2

您可以通过一种更优雅的方式来实现这一点，通过使用localization属性，如下所示：

<MaterialTable
    localization={{
        body: {
            emptyDataSourceMessage: (
                <Button color="primary" className={classes.button}>
                    Create your ad now
                </Button>
            ),
        },
    }}
    {...otherProps}
/>;