How to Get Checked Row Details in Flutter DataTable?

In this article, we will show how to get checked row details in Flutter DataTable.

Initialize the SfDataGrid widget with the necessary properties. The onCheckboxValueChanged callback is triggered when a checkbox is selected or deselected, either by tapping the checkbox or by selecting or deselecting a row (i.e., when the checkbox value changes). The callback provides the checked value, the row, and the row type.

@override
Widget build(BuildContext context) {
  return Scaffold(
    appBar: AppBar(title: const Text('Syncfusion Flutter DataGrid')),
    body: SfDataGrid(
      showCheckboxColumn: true,
      onCheckboxValueChanged: (details) {
        final rowType = details.rowType;
        final value =
            details.row
                ?.getCells()
                .firstWhere((cell) => cell.columnName == 'id')
                .value
                .toString();
        showDialog(
          context: context,
          builder: (BuildContext context) {
            return AlertDialog(
              title: Text('Details'),
              content: Column(
                mainAxisSize: MainAxisSize.min,
                crossAxisAlignment: CrossAxisAlignment.start,
                children: [
                  Text('Checkbox Value: ${details.value}'),
                  SizedBox(height: 8),
                  Text('Row Type: $rowType'),
                  SizedBox(height: 8),
                  Text('Value: $value'),
                ],
              ),
              actions: [
                TextButton(
                  onPressed: () {
                    Navigator.of(context).pop();
                  },
                  child: Text('OK'),
                ),
              ],
            );
          },
        );
      },
      selectionMode: SelectionMode.multiple,
      source: employeeDataSource,
      columnWidthMode: ColumnWidthMode.fill,
      columns: <GridColumn>[
        GridColumn(
          columnName: 'id',
          label: Container(
            padding: EdgeInsets.all(16.0),
            alignment: Alignment.center,
            child: Text('ID'),
          ),
        ),
        GridColumn(
          columnName: 'name',
          label: Container(
            padding: EdgeInsets.all(8.0),
            alignment: Alignment.center,
            child: Text('Name'),
          ),
        ),
        GridColumn(
          columnName: 'designation',
          label: Container(
            padding: EdgeInsets.all(8.0),
            alignment: Alignment.center,
            child: Text('Designation', overflow: TextOverflow.ellipsis),
          ),
        ),
        GridColumn(
          columnName: 'salary',
          label: Container(
            padding: EdgeInsets.all(8.0),
            alignment: Alignment.center,
            child: Text('Salary'),
          ),
        ),
      ],
    ),
  );
}

View the GitHub sample here.

Conclusion
I hope you enjoyed learning how to get checked row details in Flutter DataTable.
You can refer to our Flutter DataGrid feature tour page to know about its other groundbreaking feature representations and documentation, and how to quickly get started for configuration specifications. You can also explore our Flatter DataGrid example to understand how to create and manipulate data.
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