KonectarApp/lib/contacts_module/ui_screen/listview.dart

import 'package:flutter/material.dart';

class DataTableDemo extends StatefulWidget {
  @override
  State<DataTableDemo> createState() => _DataTableDemoState();
}

class _DataTableDemoState extends State<DataTableDemo> {
  Widget build(BuildContext context) {
    return SafeArea(
      child: Scaffold(
        body: ListView(
          padding: const EdgeInsets.all(3),
          children: [
            PaginatedDataTable(
              header: const Text(
                'HCP RANKING',
                style: TextStyle(
                    fontWeight: FontWeight.bold,
                    fontSize: 18.0,
                    fontStyle: FontStyle.normal),
              ),
              showFirstLastButtons: true,
              showEmptyRows: false,
              showCheckboxColumn: false,
              // actions: const [Text("jii")],
              rowsPerPage: 5,
              columns: const [
                DataColumn(
                    label: Text('Name',
                        style: TextStyle(
                            fontWeight: FontWeight.bold,
                            fontSize: 14.0,
                            fontStyle: FontStyle.normal))),
                DataColumn(
                    label: Text('Opt-in Status',
                        style: TextStyle(
                            fontWeight: FontWeight.bold,
                            fontSize: 14.0,
                            fontStyle: FontStyle.normal))),
                DataColumn(
                    label: Text('Country',
                        style: TextStyle(
                            fontWeight: FontWeight.bold,
                            fontSize: 14.0,
                            fontStyle: FontStyle.normal))),
                DataColumn(
                    label: Text('Rank',
                        style: TextStyle(
                            fontWeight: FontWeight.bold,
                            fontSize: 14.0,
                            fontStyle: FontStyle.normal))),
                DataColumn(
                    label: Text('Score',
                        style: TextStyle(
                            fontWeight: FontWeight.bold,
                            fontSize: 14.0,
                            fontStyle: FontStyle.normal))),
                DataColumn(
                    label: Text('Event',
                        style: TextStyle(
                            fontWeight: FontWeight.bold,
                            fontSize: 14.0,
                            fontStyle: FontStyle.normal))),
                DataColumn(
                    label: Text('Affliations',
                        style: TextStyle(
                            fontWeight: FontWeight.bold,
                            fontSize: 14.0,
                            fontStyle: FontStyle.normal))),
                DataColumn(
                    label: Text('Publications',
                        style: TextStyle(
                            fontWeight: FontWeight.bold,
                            fontSize: 14.0,
                            fontStyle: FontStyle.normal))),
                DataColumn(
                    label: Text('Trails',
                        style: TextStyle(
                            fontWeight: FontWeight.bold,
                            fontSize: 14.0,
                            fontStyle: FontStyle.normal))),
              ],
              source: _DataSource(context),
            ),
          ],
        ),
      ),
    );
  }
}

class _Row {
  _Row(this.identifier, this.valueA, this.valueB, this.valueC, this.valueD,
      this.valueE, this.valueF, this.valueG, this.valueH, this.valueI);
  final String identifier;
  final String valueA;
  final String valueB;
  final String valueC;
  final int valueD;
  final String valueE;
  final String valueF;
  final String valueG;
  final String valueH;
  final String valueI;

  bool selected = false;
}

class _DataSource extends DataTableSource {
  final BuildContext context;
  late List<_Row> _rows;
  _DataSource(this.context) {
    // _rows = <_Row>[
    //   _Row('Cell A1', 'CellB1', 'CellC1', 1, 'CellE1', 'CellF1', 'CellG1',
    //       'CellH1', 'CellI1'),
    //   _Row('Cell A2', 'CellB2', 'CellC2', 2, 'CellE1', 'CellF1', 'CellG1',
    //       'CellH1', 'CellI1'),
    //   _Row('Cell A3', 'CellB3', 'CellC3', 3, 'CellE1', 'CellF1', 'CellG1',
    //       'CellH1', 'CellI1'),
    //   _Row('Cell A4', 'CellB4', 'CellC4', 4, 'CellE1', 'CellF1', 'CellG1',
    //       'CellH1', 'CellI1'),
    //   _Row('Cell A5', 'CellB1', 'CellC1', 1, 'CellE1', 'CellF1', 'CellG1',
    //       'CellH1', 'CellI1'),
    //   _Row('Cell A6', 'CellB2', 'CellC2', 2, 'CellE1', 'CellF1', 'CellG1',
    //       'CellH1', 'CellI1'),
    //   _Row('Cell A7', 'CellB3', 'CellC3', 3, 'CellE1', 'CellF1', 'CellG1',
    //       'CellH1', 'CellI1'),
    //   _Row('Cell A8', 'CellB4', 'CellC4', 4, 'CellE1', 'CellF1', 'CellG1',
    //       'CellH1', 'CellI1'),
    //   _Row('Cell A9', 'CellB1', 'CellC1', 1, 'CellE1', 'CellF1', 'CellG1',
    //       'CellH1', 'CellI1'),
    // ];

    _rows = <_Row>[
      for (int i = 0; i < 20; i++)
        _Row('$i', 'Gerosa, Gino', 'Active', 'Italy', 1, '0', '0', '0', '0',
            '0'),
    ];
    //}
  }

  int _selectedCount = 0;

  @override
  DataRow? getRow(int index) {
    assert(index >= 0);
    if (index >= _rows.length) return null;
    final row = _rows[index];
    return DataRow.byIndex(
      index: index,
      selected: row.selected,
      onSelectChanged: (value) {
        // print("hii");
        // Navigator.push(
        //     context, MaterialPageRoute(builder: (context) => Profile()));
      },
      cells: [
        DataCell(Text(row.valueA)),
        DataCell(Text(row.valueB)),
        DataCell(Text(row.valueC)),
        DataCell(Text(row.valueD.toString())),
        DataCell(Text(row.valueE)),
        DataCell(Text(row.valueF)),
        DataCell(Text(row.valueG)),
        DataCell(Text(row.valueH)),
        DataCell(Text(row.valueI)),
      ],
    );
  }

  @override
  int get rowCount => _rows.length;

  @override
  bool get isRowCountApproximate => false;

  @override
  int get selectedRowCount => _selectedCount;
}