How to add a custom row class or ID to type table render elements

Question

I'm trying to add row ID's for a custom table I implemented via a custom module. But when I append an ID to the '#attributes' array it becomes the table ID, not the row ID. How can I define IDs for rows?

This is what I have so far:

$form['table'] = [
  '#type' => 'table',
  '#header' => $header_table,
  '#rows' => $rows,
  '#attributes'=> ['id' => 'IdforRow'],
  '#empty' => t('No Data found'),
  '#prefix' => '<b>Total Tenders : '.@$count.'</b><br>',
  '#suffix' => '',
];

Answer 1

The row should be prepared as given below, to have id and class for each rows.

$rows[] = [
  'id' => $row_id,
  'class' => 'row-class',
  'data' => [
    $cell1_data,
    $cell2_data,
  ]
]

Answer 2

Try to add the ID in an array format like below:

$form['table'] = [
    '#type' => 'table',
    '#header' =>  $header_table,
    '#rows' => $rows,
    '#attributes'=>[
      'id' => 'IdforRow'
    ],
    '#empty' => t('No Data found'),
    '#prefix' => '<b>Total Tenders : '.@$count.'</b><br>',
    '#suffix' => '',
];