How to change scrollbar appearance in Flutter DataTable (SfDataGrid)?

In this article, we will show how to change scrollbar appearance in Flutter DataTable.

Initialize the SfDataGrid widget with the necessary properties. Wrap the SfDataGrid with a ScrollbarTheme widget to customize its scrollbar appearance. By using ScrollbarThemeData, you can modify the scrollbar's appearance through the available properties.

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(title: const Text('Syncfusion Flutter DataGrid')),
      body: ScrollbarTheme(
        data: ScrollbarThemeData(
          // scrollbar color
          thumbColor: WidgetStatePropertyAll(Colors.red), 
        ),
        child: SfDataGrid(
          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'),
              ),
            ),
          ],
        ),
      ),
    );
  }

You can download this example on GitHub.