Display a loading bar during the retrieve data time.

[jt4000]

Goal:
Display a loading bar, in the table, during the time when you retrieve the data from backend.

Problem:
Is it possible to do it?

Codesandbox:
https://codesandbox.io/s/exciting-ganguly-7w2d84

Info:
*Tried find some information in documenation but nothing is written about it.
*New in react table.

Thank you!

---

App.js

import React from 'react'
import styled from 'styled-components'
import { useTable } from 'react-table'

import makeData from './makeData'

const Styles = styled.div`
  padding: 1rem;

  table {
    border-spacing: 0;
    border: 1px solid black;

    tr {
      :last-child {
        td {
          border-bottom: 0;
        }
      }
    }

    th,
    td {
      margin: 0;
      padding: 0.5rem;
      border-bottom: 1px solid black;
      border-right: 1px solid black;

      :last-child {
        border-right: 0;
      }
    }
  }
`

function Table({ columns, data }) {
  // Use the state and functions returned from useTable to build your UI
  const {
    getTableProps,
    getTableBodyProps,
    headerGroups,
    rows,
    prepareRow,
  } = useTable({
    columns,
    data,
  })

  // Render the UI for your table
  return (
    <table {...getTableProps()}>
      <thead>
        {headerGroups.map(headerGroup => (
          <tr {...headerGroup.getHeaderGroupProps()}>
            {headerGroup.headers.map(column => (
              <th {...column.getHeaderProps()}>{column.render('Header')}</th>
            ))}
          </tr>
        ))}
      </thead>
      <tbody {...getTableBodyProps()}>
        {rows.map((row, i) => {
          prepareRow(row)
          return (
            <tr {...row.getRowProps()}>
              {row.cells.map(cell => {
                return <td {...cell.getCellProps()}>{cell.render('Cell')}</td>
              })}
            </tr>
          )
        })}
      </tbody>
    </table>
  )
}

function App() {
  const columns = React.useMemo(
    () => [
      {
        Header: 'Name',
        columns: [
          {
            Header: 'First Name',
            accessor: 'firstName',
          },
          {
            Header: 'Last Name',
            accessor: 'lastName',
          },
        ],
      },
      {
        Header: 'Info',
        columns: [
          {
            Header: 'Age',
            accessor: 'age',
          },
          {
            Header: 'Visits',
            accessor: 'visits',
          },
          {
            Header: 'Status',
            accessor: 'status',
          },
          {
            Header: 'Profile Progress',
            accessor: 'progress',
          },
        ],
      },
    ],
    []
  )

  const data = React.useMemo(() => makeData(20), [])

  return (
    <Styles>
      <Table columns={columns} data={data} />
    </Styles>
  )
}

export default App

---

makeData.js

import namor from 'namor'

const range = len => {
  const arr = []
  for (let i = 0; i < len; i++) {
    arr.push(i)
  }
  return arr
}

const newPerson = () => {
  const statusChance = Math.random()
  return {
    firstName: namor.generate({ words: 1, numbers: 0 }),
    lastName: namor.generate({ words: 1, numbers: 0 }),
    age: Math.floor(Math.random() * 30),
    visits: Math.floor(Math.random() * 100),
    progress: Math.floor(Math.random() * 100),
    status:
      statusChance > 0.66
        ? 'relationship'
        : statusChance > 0.33
        ? 'complicated'
        : 'single',
  }
}

export default function makeData(...lens) {
  const makeDataLevel = (depth = 0) => {
    const len = lens[depth]
    return range(len).map(d => {
      return {
        ...newPerson(),
        subRows: lens[depth + 1] ? makeDataLevel(depth + 1) : undefined,
      }
    })
  }

  return makeDataLevel()
}

[Villefor]

Yes, you can just use Ternary (if) with a useState(true), if it is true (?), while your data is fetching, render the bar image. When the fetch is finished, set the state to false,then ( : ) then display: none or something on the image. there are another solutions, but this is the most simple.

[github-actions[bot]]

This issue is being marked as stale (no activity in the last 14 days)

[github-actions[bot]]

This issue has been detected as stale and automatically closed. It's very likely that your issue has remained here this long because it would require breaking changes to v7. React Table v8 is currently in alpha (soon beta!) and already contains bug fixes, performance improvements and architectural changes that likely address this issue.

• If your v7 issue has been previously labeled as requiring breaking changes, please try the new v8 alpha/beta releases
• If your v7 issue has not already been labeled as a breaking change, open a new issue.
• If this was a v8 issue and was closed by mistake, please reopen or leave a comment below.

[jt4000]

Yes, you can just use Ternary (if) with a useState(true), if it is true (?), while your data is fetching, render the bar image. When the fetch is finished, set the state to false,then ( : ) then display: none or something on the image. there are another solutions, but this is the most simple.

Can you provide a sample by using stackblitz? it is easier to understand.

[tannerlinsley]

This is a markup question that doesn't really have to do with react-table's core. Going to convert to a discussion.